Education | NIST

<!DOCTYPE html> <html lang="en" dir="ltr" prefix="content: http://purl.org/rss/1.0/modules/content/ dc: http://purl.org/dc/terms/ foaf: http://xmlns.com/foaf/0.1/ og: http://ogp.me/ns# rdfs: http://www.w3.org/2000/01/rdf-schema# schema: http://schema.org/ sioc: http://rdfs.org/sioc/ns# sioct: http://rdfs.org/sioc/types# skos: http://www.w3.org/2004/02/skos/core# xsd: http://www.w3.org/2001/XMLSchema# "> <head> <meta charset="utf-8" /><script type="text/javascript">(window.NREUM||(NREUM={})).init={ajax:{deny_list:["bam.nr-data.net"]}};(window.NREUM||(NREUM={})).loader_config={licenseKey:"37b7ccb661",applicationID:"1089704227"};;/*! For license information please see nr-loader-rum-1.274.0.min.js.LICENSE.txt */ (()=>{var e,t,r={8122:(e,t,r)=>{"use strict";r.d(t,{a:()=>i});var n=r(944);function i(e,t){try{if(!e||"object"!=typeof e)return(0,n.R)(3);if(!t||"object"!=typeof t)return(0,n.R)(4);const r=Object.create(Object.getPrototypeOf(t),Object.getOwnPropertyDescriptors(t)),o=0===Object.keys(r).length?e:r;for(let a in o)if(void 0!==e[a])try{if(null===e[a]){r[a]=null;continue}Array.isArray(e[a])&&Array.isArray(t[a])?r[a]=Array.from(new Set([...e[a],...t[a]])):"object"==typeof e[a]&&"object"==typeof t[a]?r[a]=i(e[a],t[a]):r[a]=e[a]}catch(e){(0,n.R)(1,e)}return r}catch(e){(0,n.R)(2,e)}}},2555:(e,t,r)=>{"use strict";r.d(t,{Vp:()=>c,fn:()=>s,x1:()=>u});var n=r(384),i=r(8122);const o={beacon:n.NT.beacon,errorBeacon:n.NT.errorBeacon,licenseKey:void 0,applicationID:void 0,sa:void 0,queueTime:void 0,applicationTime:void 0,ttGuid:void 0,user:void 0,account:void 0,product:void 0,extra:void 0,jsAttributes:{},userAttributes:void 0,atts:void 0,transactionName:void 0,tNamePlain:void 0},a={};function s(e){try{const t=c(e);return!!t.licenseKey&&!!t.errorBeacon&&!!t.applicationID}catch(e){return!1}}function c(e){if(!e)throw new Error("All info objects require an agent identifier!");if(!a[e])throw new Error("Info for ".concat(e," was never set"));return a[e]}function u(e,t){if(!e)throw new Error("All info objects require an agent identifier!");a[e]=(0,i.a)(t,o);const r=(0,n.nY)(e);r&&(r.info=a[e])}},9417:(e,t,r)=>{"use strict";r.d(t,{D0:()=>g,gD:()=>h,xN:()=>p});var n=r(993);const i=e=>{if(!e||"string"!=typeof e)return!1;try{document.createDocumentFragment().querySelector(e)}catch{return!1}return!0};var o=r(2614),a=r(944),s=r(384),c=r(8122);const u="[data-nr-mask]",d=()=>{const e={mask_selector:"*",block_selector:"[data-nr-block]",mask_input_options:{color:!1,date:!1,"datetime-local":!1,email:!1,month:!1,number:!1,range:!1,search:!1,tel:!1,text:!1,time:!1,url:!1,week:!1,textarea:!1,select:!1,password:!0}};return{ajax:{deny_list:void 0,block_internal:!0,enabled:!0,harvestTimeSeconds:10,autoStart:!0},distributed_tracing:{enabled:void 0,exclude_newrelic_header:void 0,cors_use_newrelic_header:void 0,cors_use_tracecontext_headers:void 0,allowed_origins:void 0},feature_flags:[],generic_events:{enabled:!0,harvestTimeSeconds:30,autoStart:!0},harvest:{tooManyRequestsDelay:60},jserrors:{enabled:!0,harvestTimeSeconds:10,autoStart:!0},logging:{enabled:!0,harvestTimeSeconds:10,autoStart:!0,level:n.p_.INFO},metrics:{enabled:!0,autoStart:!0},obfuscate:void 0,page_action:{enabled:!0},page_view_event:{enabled:!0,autoStart:!0},page_view_timing:{enabled:!0,harvestTimeSeconds:30,autoStart:!0},performance:{capture_marks:!1,capture_measures:!1},privacy:{cookies_enabled:!0},proxy:{assets:void 0,beacon:void 0},session:{expiresMs:o.wk,inactiveMs:o.BB},session_replay:{autoStart:!0,enabled:!1,harvestTimeSeconds:60,preload:!1,sampling_rate:10,error_sampling_rate:100,collect_fonts:!1,inline_images:!1,fix_stylesheets:!0,mask_all_inputs:!0,get mask_text_selector(){return e.mask_selector},set mask_text_selector(t){i(t)?e.mask_selector="".concat(t,",").concat(u):""===t||null===t?e.mask_selector=u:(0,a.R)(5,t)},get block_class(){return"nr-block"},get ignore_class(){return"nr-ignore"},get mask_text_class(){return"nr-mask"},get block_selector(){return e.block_selector},set block_selector(t){i(t)?e.block_selector+=",".concat(t):""!==t&&(0,a.R)(6,t)},get mask_input_options(){return e.mask_input_options},set mask_input_options(t){t&&"object"==typeof t?e.mask_input_options={...t,password:!0}:(0,a.R)(7,t)}},session_trace:{enabled:!0,harvestTimeSeconds:10,autoStart:!0},soft_navigations:{enabled:!0,harvestTimeSeconds:10,autoStart:!0},spa:{enabled:!0,harvestTimeSeconds:10,autoStart:!0},ssl:void 0,user_actions:{enabled:!0}}},l={},f="All configuration objects require an agent identifier!";function g(e){if(!e)throw new Error(f);if(!l[e])throw new Error("Configuration for ".concat(e," was never set"));return l[e]}function p(e,t){if(!e)throw new Error(f);l[e]=(0,c.a)(t,d());const r=(0,s.nY)(e);r&&(r.init=l[e])}function h(e,t){if(!e)throw new Error(f);var r=g(e);if(r){for(var n=t.split("."),i=0;i<n.length-1;i++)if("object"!=typeof(r=r[n[i]]))return;r=r[n[n.length-1]]}return r}},3371:(e,t,r)=>{"use strict";r.d(t,{V:()=>f,f:()=>l});var n=r(8122),i=r(384),o=r(6154),a=r(9324);let s=0;const c={buildEnv:a.F3,distMethod:a.Xs,version:a.xv,originTime:o.WN},u={customTransaction:void 0,disabled:!1,isolatedBacklog:!1,loaderType:void 0,maxBytes:3e4,onerror:void 0,ptid:void 0,releaseIds:{},appMetadata:{},session:void 0,denyList:void 0,timeKeeper:void 0,obfuscator:void 0},d={};function l(e){if(!e)throw new Error("All runtime objects require an agent identifier!");if(!d[e])throw new Error("Runtime for ".concat(e," was never set"));return d[e]}function f(e,t){if(!e)throw new Error("All runtime objects require an agent identifier!");d[e]={...(0,n.a)(t,u),...c},Object.hasOwnProperty.call(d[e],"harvestCount")||Object.defineProperty(d[e],"harvestCount",{get:()=>++s});const r=(0,i.nY)(e);r&&(r.runtime=d[e])}},9324:(e,t,r)=>{"use strict";r.d(t,{F3:()=>i,Xs:()=>o,xv:()=>n});const n="1.274.0",i="PROD",o="CDN"},6154:(e,t,r)=>{"use strict";r.d(t,{OF:()=>c,RI:()=>i,WN:()=>d,bv:()=>o,gm:()=>a,mw:()=>s,sb:()=>u});var n=r(1863);const i="undefined"!=typeof window&&!!window.document,o="undefined"!=typeof WorkerGlobalScope&&("undefined"!=typeof self&&self instanceof WorkerGlobalScope&&self.navigator instanceof WorkerNavigator||"undefined"!=typeof globalThis&&globalThis instanceof WorkerGlobalScope&&globalThis.navigator instanceof WorkerNavigator),a=i?window:"undefined"!=typeof WorkerGlobalScope&&("undefined"!=typeof self&&self instanceof WorkerGlobalScope&&self||"undefined"!=typeof globalThis&&globalThis instanceof WorkerGlobalScope&&globalThis),s=Boolean("hidden"===a?.document?.visibilityState),c=/iPad|iPhone|iPod/.test(a.navigator?.userAgent),u=c&&"undefined"==typeof SharedWorker,d=((()=>{const e=a.navigator?.userAgent?.match(/Firefox[/\s](\d+\.\d+)/);Array.isArray(e)&&e.length>=2&&e[1]})(),Date.now()-(0,n.t)())},1687:(e,t,r)=>{"use strict";r.d(t,{Ak:()=>c,Ze:()=>l,x3:()=>u});var n=r(7836),i=r(3606),o=r(860),a=r(2646);const s={};function c(e,t){const r={staged:!1,priority:o.P3[t]||0};d(e),s[e].get(t)||s[e].set(t,r)}function u(e,t){e&&s[e]&&(s[e].get(t)&&s[e].delete(t),g(e,t,!1),s[e].size&&f(e))}function d(e){if(!e)throw new Error("agentIdentifier required");s[e]||(s[e]=new Map)}function l(e="",t="feature",r=!1){if(d(e),!e||!s[e].get(t)||r)return g(e,t);s[e].get(t).staged=!0,f(e)}function f(e){const t=Array.from(s[e]);t.every((([e,t])=>t.staged))&&(t.sort(((e,t)=>e[1].priority-t[1].priority)),t.forEach((([t])=>{s[e].delete(t),g(e,t)})))}function g(e,t,r=!0){const o=e?n.ee.get(e):n.ee,s=i.i.handlers;if(!o.aborted&&o.backlog&&s){if(r){const e=o.backlog[t],r=s[t];if(r){for(let t=0;e&&t<e.length;++t)p(e[t],r);Object.entries(r).forEach((([e,t])=>{Object.values(t||{}).forEach((t=>{t[0]?.on&&t[0]?.context()instanceof a.y&&t[0].on(e,t[1])}))}))}}o.isolatedBacklog||delete s[t],o.backlog[t]=null,o.emit("drain-"+t,[])}}function p(e,t){var r=e[1];Object.values(t[r]||{}).forEach((t=>{var r=e[0];if(t[0]===r){var n=t[1],i=e[3],o=e[2];n.apply(i,o)}}))}},7836:(e,t,r)=>{"use strict";r.d(t,{P:()=>c,ee:()=>u});var n=r(384),i=r(8990),o=r(3371),a=r(2646),s=r(5607);const c="nr@context:".concat(s.W),u=function e(t,r){var n={},s={},d={},l=!1;try{l=16===r.length&&(0,o.f)(r).isolatedBacklog}catch(e){}var f={on:p,addEventListener:p,removeEventListener:function(e,t){var r=n[e];if(!r)return;for(var i=0;i<r.length;i++)r[i]===t&&r.splice(i,1)},emit:function(e,r,n,i,o){!1!==o&&(o=!0);if(u.aborted&&!i)return;t&&o&&t.emit(e,r,n);for(var a=g(n),c=h(e),d=c.length,l=0;l<d;l++)c[l].apply(a,r);var p=m()[s[e]];p&&p.push([f,e,r,a]);return a},get:v,listeners:h,context:g,buffer:function(e,t){const r=m();if(t=t||"feature",f.aborted)return;Object.entries(e||{}).forEach((([e,n])=>{s[n]=t,t in r||(r[t]=[])}))},abort:function(){f._aborted=!0,Object.keys(f.backlog).forEach((e=>{delete f.backlog[e]}))},isBuffering:function(e){return!!m()[s[e]]},debugId:r,backlog:l?{}:t&&"object"==typeof t.backlog?t.backlog:{},isolatedBacklog:l};return Object.defineProperty(f,"aborted",{get:()=>{let e=f._aborted||!1;return e||(t&&(e=t.aborted),e)}}),f;function g(e){return e&&e instanceof a.y?e:e?(0,i.I)(e,c,(()=>new a.y(c))):new a.y(c)}function p(e,t){n[e]=h(e).concat(t)}function h(e){return n[e]||[]}function v(t){return d[t]=d[t]||e(f,t)}function m(){return f.backlog}}(void 0,"globalEE"),d=(0,n.Zm)();d.ee||(d.ee=u)},2646:(e,t,r)=>{"use strict";r.d(t,{y:()=>n});class n{constructor(e){this.contextId=e}}},9908:(e,t,r)=>{"use strict";r.d(t,{d:()=>n,p:()=>i});var n=r(7836).ee.get("handle");function i(e,t,r,i,o){o?(o.buffer([e],i),o.emit(e,t,r)):(n.buffer([e],i),n.emit(e,t,r))}},3606:(e,t,r)=>{"use strict";r.d(t,{i:()=>o});var n=r(9908);o.on=a;var i=o.handlers={};function o(e,t,r,o){a(o||n.d,i,e,t,r)}function a(e,t,r,i,o){o||(o="feature"),e||(e=n.d);var a=t[o]=t[o]||{};(a[r]=a[r]||[]).push([e,i])}},3878:(e,t,r)=>{"use strict";function n(e,t){return{capture:e,passive:!1,signal:t}}function i(e,t,r=!1,i){window.addEventListener(e,t,n(r,i))}function o(e,t,r=!1,i){document.addEventListener(e,t,n(r,i))}r.d(t,{DD:()=>o,jT:()=>n,sp:()=>i})},5607:(e,t,r)=>{"use strict";r.d(t,{W:()=>n});const n=(0,r(9566).bz)()},9566:(e,t,r)=>{"use strict";r.d(t,{LA:()=>s,bz:()=>a});var n=r(6154);const i="xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx";function o(e,t){return e?15&e[t]:16*Math.random()|0}function a(){const e=n.gm?.crypto||n.gm?.msCrypto;let t,r=0;return e&&e.getRandomValues&&(t=e.getRandomValues(new Uint8Array(30))),i.split("").map((e=>"x"===e?o(t,r++).toString(16):"y"===e?(3&o()|8).toString(16):e)).join("")}function s(e){const t=n.gm?.crypto||n.gm?.msCrypto;let r,i=0;t&&t.getRandomValues&&(r=t.getRandomValues(new Uint8Array(e)));const a=[];for(var s=0;s<e;s++)a.push(o(r,i++).toString(16));return a.join("")}},2614:(e,t,r)=>{"use strict";r.d(t,{BB:()=>a,H3:()=>n,g:()=>u,iL:()=>c,tS:()=>s,uh:()=>i,wk:()=>o});const n="NRBA",i="SESSION",o=144e5,a=18e5,s={STARTED:"session-started",PAUSE:"session-pause",RESET:"session-reset",RESUME:"session-resume",UPDATE:"session-update"},c={SAME_TAB:"same-tab",CROSS_TAB:"cross-tab"},u={OFF:0,FULL:1,ERROR:2}},1863:(e,t,r)=>{"use strict";function n(){return Math.floor(performance.now())}r.d(t,{t:()=>n})},944:(e,t,r)=>{"use strict";function n(e,t){"function"==typeof console.debug&&console.debug("New Relic Warning: https://github.com/newrelic/newrelic-browser-agent/blob/main/docs/warning-codes.md#".concat(e),t)}r.d(t,{R:()=>n})},5284:(e,t,r)=>{"use strict";r.d(t,{t:()=>c,B:()=>s});var n=r(7836),i=r(6154);const o="newrelic";const a=new Set,s={};function c(e,t){const r=n.ee.get(t);s[t]??={},e&&"object"==typeof e&&(a.has(t)||(r.emit("rumresp",[e]),s[t]=e,a.add(t),function(e={}){try{i.gm.dispatchEvent(new CustomEvent(o,{detail:e}))}catch(e){}}({loaded:!0})))}},8990:(e,t,r)=>{"use strict";r.d(t,{I:()=>i});var n=Object.prototype.hasOwnProperty;function i(e,t,r){if(n.call(e,t))return e[t];var i=r();if(Object.defineProperty&&Object.keys)try{return Object.defineProperty(e,t,{value:i,writable:!0,enumerable:!1}),i}catch(e){}return e[t]=i,i}},6389:(e,t,r)=>{"use strict";function n(e,t=500,r={}){const n=r?.leading||!1;let i;return(...r)=>{n&&void 0===i&&(e.apply(this,r),i=setTimeout((()=>{i=clearTimeout(i)}),t)),n||(clearTimeout(i),i=setTimeout((()=>{e.apply(this,r)}),t))}}function i(e){let t=!1;return(...r)=>{t||(t=!0,e.apply(this,r))}}r.d(t,{J:()=>i,s:()=>n})},5289:(e,t,r)=>{"use strict";r.d(t,{GG:()=>o,sB:()=>a});var n=r(3878);function i(){return"undefined"==typeof document||"complete"===document.readyState}function o(e,t){if(i())return e();(0,n.sp)("load",e,t)}function a(e){if(i())return e();(0,n.DD)("DOMContentLoaded",e)}},384:(e,t,r)=>{"use strict";r.d(t,{NT:()=>o,US:()=>d,Zm:()=>a,bQ:()=>c,dV:()=>s,nY:()=>u,pV:()=>l});var n=r(6154),i=r(1863);const o={beacon:"bam.nr-data.net",errorBeacon:"bam.nr-data.net"};function a(){return n.gm.NREUM||(n.gm.NREUM={}),void 0===n.gm.newrelic&&(n.gm.newrelic=n.gm.NREUM),n.gm.NREUM}function s(){let e=a();return e.o||(e.o={ST:n.gm.setTimeout,SI:n.gm.setImmediate,CT:n.gm.clearTimeout,XHR:n.gm.XMLHttpRequest,REQ:n.gm.Request,EV:n.gm.Event,PR:n.gm.Promise,MO:n.gm.MutationObserver,FETCH:n.gm.fetch,WS:n.gm.WebSocket}),e}function c(e,t){let r=a();r.initializedAgents??={},t.initializedAt={ms:(0,i.t)(),date:new Date},r.initializedAgents[e]=t}function u(e){let t=a();return t.initializedAgents?.[e]}function d(e,t){a()[e]=t}function l(){return function(){let e=a();const t=e.info||{};e.info={beacon:o.beacon,errorBeacon:o.errorBeacon,...t}}(),function(){let e=a();const t=e.init||{};e.init={...t}}(),s(),function(){let e=a();const t=e.loader_config||{};e.loader_config={...t}}(),a()}},2843:(e,t,r)=>{"use strict";r.d(t,{u:()=>i});var n=r(3878);function i(e,t=!1,r,i){(0,n.DD)("visibilitychange",(function(){if(t)return void("hidden"===document.visibilityState&&e());e(document.visibilityState)}),r,i)}},3434:(e,t,r)=>{"use strict";r.d(t,{YM:()=>c});var n=r(7836),i=r(5607);const o="nr@original:".concat(i.W);var a=Object.prototype.hasOwnProperty,s=!1;function c(e,t){return e||(e=n.ee),r.inPlace=function(e,t,n,i,o){n||(n="");const a="-"===n.charAt(0);for(let s=0;s<t.length;s++){const c=t[s],u=e[c];d(u)||(e[c]=r(u,a?c+n:n,i,c,o))}},r.flag=o,r;function r(t,r,n,s,c){return d(t)?t:(r||(r=""),nrWrapper[o]=t,function(e,t,r){if(Object.defineProperty&&Object.keys)try{return Object.keys(e).forEach((function(r){Object.defineProperty(t,r,{get:function(){return e[r]},set:function(t){return e[r]=t,t}})})),t}catch(e){u([e],r)}for(var n in e)a.call(e,n)&&(t[n]=e[n])}(t,nrWrapper,e),nrWrapper);function nrWrapper(){var o,a,d,l;try{a=this,o=[...arguments],d="function"==typeof n?n(o,a):n||{}}catch(t){u([t,"",[o,a,s],d],e)}i(r+"start",[o,a,s],d,c);try{return l=t.apply(a,o)}catch(e){throw i(r+"err",[o,a,e],d,c),e}finally{i(r+"end",[o,a,l],d,c)}}}function i(r,n,i,o){if(!s||t){var a=s;s=!0;try{e.emit(r,n,i,t,o)}catch(t){u([t,r,n,i],e)}s=a}}}function u(e,t){t||(t=n.ee);try{t.emit("internal-error",e)}catch(e){}}function d(e){return!(e&&"function"==typeof e&&e.apply&&!e[o])}},993:(e,t,r)=>{"use strict";r.d(t,{ET:()=>o,p_:()=>i});var n=r(860);const i={ERROR:"ERROR",WARN:"WARN",INFO:"INFO",DEBUG:"DEBUG",TRACE:"TRACE"},o="log";n.K7.logging},3969:(e,t,r)=>{"use strict";r.d(t,{TZ:()=>n,XG:()=>s,rs:()=>i,xV:()=>a,z_:()=>o});const n=r(860).K7.metrics,i="sm",o="cm",a="storeSupportabilityMetrics",s="storeEventMetrics"},6630:(e,t,r)=>{"use strict";r.d(t,{T:()=>n});const n=r(860).K7.pageViewEvent},782:(e,t,r)=>{"use strict";r.d(t,{T:()=>n});const n=r(860).K7.pageViewTiming},6344:(e,t,r)=>{"use strict";r.d(t,{G4:()=>i});var n=r(2614);r(860).K7.sessionReplay;const i={RECORD:"recordReplay",PAUSE:"pauseReplay",REPLAY_RUNNING:"replayRunning",ERROR_DURING_REPLAY:"errorDuringReplay"};n.g.ERROR,n.g.FULL,n.g.OFF},4234:(e,t,r)=>{"use strict";r.d(t,{W:()=>o});var n=r(7836),i=r(1687);class o{constructor(e,t){this.agentIdentifier=e,this.ee=n.ee.get(e),this.featureName=t,this.blocked=!1}deregisterDrain(){(0,i.x3)(this.agentIdentifier,this.featureName)}}},7603:(e,t,r)=>{"use strict";r.d(t,{j:()=>P});var n=r(860),i=r(2555),o=r(3371),a=r(9908),s=r(7836),c=r(1687),u=r(5289),d=r(6154),l=r(944),f=r(3969),g=r(384),p=r(6344);const h=["setErrorHandler","finished","addToTrace","addRelease","addPageAction","setCurrentRouteName","setPageViewName","setCustomAttribute","interaction","noticeError","setUserId","setApplicationVersion","start",p.G4.RECORD,p.G4.PAUSE,"log","wrapLogger"],v=["setErrorHandler","finished","addToTrace","addRelease"];var m=r(1863),b=r(2614),y=r(993);var w=r(2646),A=r(3434);function R(e,t,r,n){if("object"!=typeof t||!t||"string"!=typeof r||!r||"function"!=typeof t[r])return(0,l.R)(29);const i=function(e){return(e||s.ee).get("logger")}(e),o=(0,A.YM)(i),a=new w.y(s.P);return a.level=n.level,a.customAttributes=n.customAttributes,o.inPlace(t,[r],"wrap-logger-",a),i}function E(){const e=(0,g.pV)();h.forEach((t=>{e[t]=(...r)=>function(t,...r){let n=[];return Object.values(e.initializedAgents).forEach((e=>{e&&e.api?e.exposed&&e.api[t]&&n.push(e.api[t](...r)):(0,l.R)(38,t)})),n.length>1?n:n[0]}(t,...r)}))}const x={};function _(e,t,g=!1){t||(0,c.Ak)(e,"api");const h={};var w=s.ee.get(e),A=w.get("tracer");x[e]=b.g.OFF,w.on(p.G4.REPLAY_RUNNING,(t=>{x[e]=t}));var E="api-",_=E+"ixn-";function N(t,r,n,o){const a=(0,i.Vp)(e);return null===r?delete a.jsAttributes[t]:(0,i.x1)(e,{...a,jsAttributes:{...a.jsAttributes,[t]:r}}),j(E,n,!0,o||null===r?"session":void 0)(t,r)}function T(){}h.log=function(e,{customAttributes:t={},level:r=y.p_.INFO}={}){(0,a.p)(f.xV,["API/log/called"],void 0,n.K7.metrics,w),function(e,t,r={},i=y.p_.INFO){(0,a.p)(f.xV,["API/logging/".concat(i.toLowerCase(),"/called")],void 0,n.K7.metrics,e),(0,a.p)(y.ET,[(0,m.t)(),t,r,i],void 0,n.K7.logging,e)}(w,e,t,r)},h.wrapLogger=(e,t,{customAttributes:r={},level:i=y.p_.INFO}={})=>{(0,a.p)(f.xV,["API/wrapLogger/called"],void 0,n.K7.metrics,w),R(w,e,t,{customAttributes:r,level:i})},v.forEach((e=>{h[e]=j(E,e,!0,"api")})),h.addPageAction=j(E,"addPageAction",!0,n.K7.genericEvents),h.setPageViewName=function(t,r){if("string"==typeof t)return"/"!==t.charAt(0)&&(t="/"+t),(0,o.f)(e).customTransaction=(r||"http://custom.transaction")+t,j(E,"setPageViewName",!0)()},h.setCustomAttribute=function(e,t,r=!1){if("string"==typeof e){if(["string","number","boolean"].includes(typeof t)||null===t)return N(e,t,"setCustomAttribute",r);(0,l.R)(40,typeof t)}else(0,l.R)(39,typeof e)},h.setUserId=function(e){if("string"==typeof e||null===e)return N("enduser.id",e,"setUserId",!0);(0,l.R)(41,typeof e)},h.setApplicationVersion=function(e){if("string"==typeof e||null===e)return N("application.version",e,"setApplicationVersion",!1);(0,l.R)(42,typeof e)},h.start=()=>{try{(0,a.p)(f.xV,["API/start/called"],void 0,n.K7.metrics,w),w.emit("manual-start-all")}catch(e){(0,l.R)(23,e)}},h[p.G4.RECORD]=function(){(0,a.p)(f.xV,["API/recordReplay/called"],void 0,n.K7.metrics,w),(0,a.p)(p.G4.RECORD,[],void 0,n.K7.sessionReplay,w)},h[p.G4.PAUSE]=function(){(0,a.p)(f.xV,["API/pauseReplay/called"],void 0,n.K7.metrics,w),(0,a.p)(p.G4.PAUSE,[],void 0,n.K7.sessionReplay,w)},h.interaction=function(e){return(new T).get("object"==typeof e?e:{})};const S=T.prototype={createTracer:function(e,t){var r={},i=this,o="function"==typeof t;return(0,a.p)(f.xV,["API/createTracer/called"],void 0,n.K7.metrics,w),g||(0,a.p)(_+"tracer",[(0,m.t)(),e,r],i,n.K7.spa,w),function(){if(A.emit((o?"":"no-")+"fn-start",[(0,m.t)(),i,o],r),o)try{return t.apply(this,arguments)}catch(e){const t="string"==typeof e?new Error(e):e;throw A.emit("fn-err",[arguments,this,t],r),t}finally{A.emit("fn-end",[(0,m.t)()],r)}}}};function j(e,t,r,i){return function(){return(0,a.p)(f.xV,["API/"+t+"/called"],void 0,n.K7.metrics,w),i&&(0,a.p)(e+t,[(0,m.t)(),...arguments],r?null:this,i,w),r?void 0:this}}function k(){r.e(296).then(r.bind(r,8778)).then((({setAPI:t})=>{t(e),(0,c.Ze)(e,"api")})).catch((e=>{(0,l.R)(27,e),w.abort()}))}return["actionText","setName","setAttribute","save","ignore","onEnd","getContext","end","get"].forEach((e=>{S[e]=j(_,e,void 0,g?n.K7.softNav:n.K7.spa)})),h.setCurrentRouteName=g?j(_,"routeName",void 0,n.K7.softNav):j(E,"routeName",!0,n.K7.spa),h.noticeError=function(t,r){"string"==typeof t&&(t=new Error(t)),(0,a.p)(f.xV,["API/noticeError/called"],void 0,n.K7.metrics,w),(0,a.p)("err",[t,(0,m.t)(),!1,r,!!x[e]],void 0,n.K7.jserrors,w)},d.RI?(0,u.GG)((()=>k()),!0):k(),h}var N=r(9417),T=r(8122);const S={accountID:void 0,trustKey:void 0,agentID:void 0,licenseKey:void 0,applicationID:void 0,xpid:void 0},j={};var k=r(5284);const I=e=>{const t=e.startsWith("http");e+="/",r.p=t?e:"https://"+e};let O=!1;function P(e,t={},r,n){let{init:a,info:c,loader_config:u,runtime:l={},exposed:f=!0}=t;l.loaderType=r;const p=(0,g.pV)();c||(a=p.init,c=p.info,u=p.loader_config),(0,N.xN)(e.agentIdentifier,a||{}),function(e,t){if(!e)throw new Error("All loader-config objects require an agent identifier!");j[e]=(0,T.a)(t,S);const r=(0,g.nY)(e);r&&(r.loader_config=j[e])}(e.agentIdentifier,u||{}),c.jsAttributes??={},d.bv&&(c.jsAttributes.isWorker=!0),(0,i.x1)(e.agentIdentifier,c);const h=(0,N.D0)(e.agentIdentifier),v=[c.beacon,c.errorBeacon];O||(h.proxy.assets&&(I(h.proxy.assets),v.push(h.proxy.assets)),h.proxy.beacon&&v.push(h.proxy.beacon),E(),(0,g.US)("activatedFeatures",k.B),e.runSoftNavOverSpa&&=!0===h.soft_navigations.enabled&&h.feature_flags.includes("soft_nav")),l.denyList=[...h.ajax.deny_list||[],...h.ajax.block_internal?v:[]],l.ptid=e.agentIdentifier,(0,o.V)(e.agentIdentifier,l),e.ee=s.ee.get(e.agentIdentifier),void 0===e.api&&(e.api=_(e.agentIdentifier,n,e.runSoftNavOverSpa)),void 0===e.exposed&&(e.exposed=f),O=!0}},8374:(e,t,r)=>{r.nc=(()=>{try{return document?.currentScript?.nonce}catch(e){}return""})()},860:(e,t,r)=>{"use strict";r.d(t,{$J:()=>o,K7:()=>n,P3:()=>i});const n={ajax:"ajax",genericEvents:"generic_events",jserrors:"jserrors",logging:"logging",metrics:"metrics",pageAction:"page_action",pageViewEvent:"page_view_event",pageViewTiming:"page_view_timing",sessionReplay:"session_replay",sessionTrace:"session_trace",softNav:"soft_navigations",spa:"spa"},i={[n.pageViewEvent]:1,[n.pageViewTiming]:2,[n.metrics]:3,[n.jserrors]:4,[n.spa]:5,[n.ajax]:6,[n.sessionTrace]:7,[n.softNav]:8,[n.sessionReplay]:9,[n.logging]:10,[n.genericEvents]:11},o={[n.pageViewTiming]:"events",[n.ajax]:"events",[n.spa]:"events",[n.softNav]:"events",[n.metrics]:"jserrors",[n.jserrors]:"jserrors",[n.sessionTrace]:"browser/blobs",[n.sessionReplay]:"browser/blobs",[n.logging]:"browser/logs",[n.genericEvents]:"ins"}}},n={};function i(e){var t=n[e];if(void 0!==t)return t.exports;var o=n[e]={exports:{}};return r[e](o,o.exports,i),o.exports}i.m=r,i.d=(e,t)=>{for(var r in t)i.o(t,r)&&!i.o(e,r)&&Object.defineProperty(e,r,{enumerable:!0,get:t[r]})},i.f={},i.e=e=>Promise.all(Object.keys(i.f).reduce(((t,r)=>(i.f[r](e,t),t)),[])),i.u=e=>"nr-rum-1.274.0.min.js",i.o=(e,t)=>Object.prototype.hasOwnProperty.call(e,t),e={},t="NRBA-1.274.0.PROD:",i.l=(r,n,o,a)=>{if(e[r])e[r].push(n);else{var s,c;if(void 0!==o)for(var u=document.getElementsByTagName("script"),d=0;d<u.length;d++){var l=u[d];if(l.getAttribute("src")==r||l.getAttribute("data-webpack")==t+o){s=l;break}}if(!s){c=!0;var f={296:"sha512-gkYkZDAwQ9PwaDXs2YM+rNIdRej1Ac1mupWobRJ8eahQcXz6/sunGZCKklrzi5kWxhOGRZr2tn0rEKuLTXzfAA=="};(s=document.createElement("script")).charset="utf-8",s.timeout=120,i.nc&&s.setAttribute("nonce",i.nc),s.setAttribute("data-webpack",t+o),s.src=r,0!==s.src.indexOf(window.location.origin+"/")&&(s.crossOrigin="anonymous"),f[a]&&(s.integrity=f[a])}e[r]=[n];var g=(t,n)=>{s.onerror=s.onload=null,clearTimeout(p);var i=e[r];if(delete e[r],s.parentNode&&s.parentNode.removeChild(s),i&&i.forEach((e=>e(n))),t)return t(n)},p=setTimeout(g.bind(null,void 0,{type:"timeout",target:s}),12e4);s.onerror=g.bind(null,s.onerror),s.onload=g.bind(null,s.onload),c&&document.head.appendChild(s)}},i.r=e=>{"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},i.p="https://js-agent.newrelic.com/",(()=>{var e={840:0,374:0};i.f.j=(t,r)=>{var n=i.o(e,t)?e[t]:void 0;if(0!==n)if(n)r.push(n[2]);else{var o=new Promise(((r,i)=>n=e[t]=[r,i]));r.push(n[2]=o);var a=i.p+i.u(t),s=new Error;i.l(a,(r=>{if(i.o(e,t)&&(0!==(n=e[t])&&(e[t]=void 0),n)){var o=r&&("load"===r.type?"missing":r.type),a=r&&r.target&&r.target.src;s.message="Loading chunk "+t+" failed.\n("+o+": "+a+")",s.name="ChunkLoadError",s.type=o,s.request=a,n[1](s)}}),"chunk-"+t,t)}};var t=(t,r)=>{var n,o,[a,s,c]=r,u=0;if(a.some((t=>0!==e[t]))){for(n in s)i.o(s,n)&&(i.m[n]=s[n]);if(c)c(i)}for(t&&t(r);u<a.length;u++)o=a[u],i.o(e,o)&&e[o]&&e[o][0](),e[o]=0},r=self["webpackChunk:NRBA-1.274.0.PROD"]=self["webpackChunk:NRBA-1.274.0.PROD"]||[];r.forEach(t.bind(null,0)),r.push=t.bind(null,r.push.bind(r))})(),(()=>{"use strict";i(8374);var e=i(944),t=i(6344),r=i(9566);class n{agentIdentifier;constructor(e=(0,r.LA)(16)){this.agentIdentifier=e}#e(t,...r){if("function"==typeof this.api?.[t])return this.api[t](...r);(0,e.R)(35,t)}addPageAction(e,t){return this.#e("addPageAction",e,t)}setPageViewName(e,t){return this.#e("setPageViewName",e,t)}setCustomAttribute(e,t,r){return this.#e("setCustomAttribute",e,t,r)}noticeError(e,t){return this.#e("noticeError",e,t)}setUserId(e){return this.#e("setUserId",e)}setApplicationVersion(e){return this.#e("setApplicationVersion",e)}setErrorHandler(e){return this.#e("setErrorHandler",e)}addRelease(e,t){return this.#e("addRelease",e,t)}log(e,t){return this.#e("log",e,t)}}class o extends n{#e(t,...r){if("function"==typeof this.api?.[t])return this.api[t](...r);(0,e.R)(35,t)}start(){return this.#e("start")}finished(e){return this.#e("finished",e)}recordReplay(){return this.#e(t.G4.RECORD)}pauseReplay(){return this.#e(t.G4.PAUSE)}addToTrace(e){return this.#e("addToTrace",e)}setCurrentRouteName(e){return this.#e("setCurrentRouteName",e)}interaction(){return this.#e("interaction")}wrapLogger(e,t,r){return this.#e("wrapLogger",e,t,r)}}var a=i(860),s=i(9417);const c=Object.values(a.K7);function u(e){const t={};return c.forEach((r=>{t[r]=function(e,t){return!0===(0,s.gD)(t,"".concat(e,".enabled"))}(r,e)})),t}var d=i(7603);var l=i(1687),f=i(4234),g=i(5289),p=i(6154),h=i(384);const v=e=>p.RI&&!0===(0,s.gD)(e,"privacy.cookies_enabled");function m(e){return!!(0,h.dV)().o.MO&&v(e)&&!0===(0,s.gD)(e,"session_trace.enabled")}var b=i(6389);class y extends f.W{constructor(e,t,r=!0){super(e.agentIdentifier,t),this.auto=r,this.abortHandler=void 0,this.featAggregate=void 0,this.onAggregateImported=void 0,!1===e.init[this.featureName].autoStart&&(this.auto=!1),this.auto?(0,l.Ak)(e.agentIdentifier,t):this.ee.on("manual-start-all",(0,b.J)((()=>{(0,l.Ak)(e.agentIdentifier,this.featureName),this.auto=!0,this.importAggregator(e)})))}importAggregator(t,r={}){if(this.featAggregate||!this.auto)return;let n;this.onAggregateImported=new Promise((e=>{n=e}));const o=async()=>{let o;try{if(v(this.agentIdentifier)){const{setupAgentSession:e}=await i.e(296).then(i.bind(i,3861));o=e(t)}}catch(t){(0,e.R)(20,t),this.ee.emit("internal-error",[t]),this.featureName===a.K7.sessionReplay&&this.abortHandler?.()}try{if(t.sharedAggregator)await t.sharedAggregator;else{t.sharedAggregator=i.e(296).then(i.bind(i,9337));const{EventAggregator:e}=await t.sharedAggregator;t.sharedAggregator=new e}if(!this.#t(this.featureName,o))return(0,l.Ze)(this.agentIdentifier,this.featureName),void n(!1);const{lazyFeatureLoader:e}=await i.e(296).then(i.bind(i,6103)),{Aggregate:a}=await e(this.featureName,"aggregate");this.featAggregate=new a(t,r),n(!0)}catch(t){(0,e.R)(34,t),this.abortHandler?.(),(0,l.Ze)(this.agentIdentifier,this.featureName,!0),n(!1),this.ee&&this.ee.abort()}};p.RI?(0,g.GG)((()=>o()),!0):o()}#t(e,t){switch(e){case a.K7.sessionReplay:return m(this.agentIdentifier)&&!!t;case a.K7.sessionTrace:return!!t;default:return!0}}}var w=i(6630);class A extends y{static featureName=w.T;constructor(e,t=!0){super(e,w.T,t),this.importAggregator(e)}}var R=i(9908),E=i(2843),x=i(3878),_=i(782),N=i(1863);class T extends y{static featureName=_.T;constructor(e,t=!0){super(e,_.T,t),p.RI&&((0,E.u)((()=>(0,R.p)("docHidden",[(0,N.t)()],void 0,_.T,this.ee)),!0),(0,x.sp)("pagehide",(()=>(0,R.p)("winPagehide",[(0,N.t)()],void 0,_.T,this.ee))),this.importAggregator(e))}}var S=i(3969);class j extends y{static featureName=S.TZ;constructor(e,t=!0){super(e,S.TZ,t),this.importAggregator(e)}}new class extends o{constructor(t,r){super(r),p.gm?(this.features={},(0,h.bQ)(this.agentIdentifier,this),this.desiredFeatures=new Set(t.features||[]),this.desiredFeatures.add(A),this.runSoftNavOverSpa=[...this.desiredFeatures].some((e=>e.featureName===a.K7.softNav)),(0,d.j)(this,t,t.loaderType||"agent"),this.run()):(0,e.R)(21)}get config(){return{info:this.info,init:this.init,loader_config:this.loader_config,runtime:this.runtime}}run(){try{const t=u(this.agentIdentifier),r=[...this.desiredFeatures];r.sort(((e,t)=>a.P3[e.featureName]-a.P3[t.featureName])),r.forEach((r=>{if(!t[r.featureName]&&r.featureName!==a.K7.pageViewEvent)return;if(this.runSoftNavOverSpa&&r.featureName===a.K7.spa)return;if(!this.runSoftNavOverSpa&&r.featureName===a.K7.softNav)return;const n=function(e){switch(e){case a.K7.ajax:return[a.K7.jserrors];case a.K7.sessionTrace:return[a.K7.ajax,a.K7.pageViewEvent];case a.K7.sessionReplay:return[a.K7.sessionTrace];case a.K7.pageViewTiming:return[a.K7.pageViewEvent];default:return[]}}(r.featureName).filter((e=>!(e in this.features)));n.length>0&&(0,e.R)(36,{targetFeature:r.featureName,missingDependencies:n}),this.features[r.featureName]=new r(this)}))}catch(t){(0,e.R)(22,t);for(const e in this.features)this.features[e].abortHandler?.();const r=(0,h.Zm)();delete r.initializedAgents[this.agentIdentifier]?.api,delete r.initializedAgents[this.agentIdentifier]?.features,delete this.sharedAggregator;return r.ee.get(this.agentIdentifier).abort(),!1}}}({features:[A,T,j],loaderType:"lite"})})()})();</script> <noscript><style>form.antibot * :not(.antibot-message) { display: none !important; }</style> </noscript><script async src="https://www.googletagmanager.com/gtag/js?id=G-HEQ0YF2VYL"></script> <script>window.dataLayer = window.dataLayer || [];function gtag(){dataLayer.push(arguments)};gtag("js", new Date());gtag("set", "developer_id.dMDhkMT", true);gtag('set', {'cookie_flags': 'SameSite=None;Secure', 'cookie_domain': 'www.nist.gov'});gtag("config", "G-HEQ0YF2VYL", {"groups":"default","page_placeholder":"PLACEHOLDER_page_location","link_attribution":true,"allow_ad_personalization_signals":false});gtag("config", "UA-33523145-1", {"groups":"default","anonymize_ip":true,"page_placeholder":"PLACEHOLDER_page_path","link_attribution":true,"allow_ad_personalization_signals":false,"custom_map":{"dimension2":"node_title","dimension3":"node_id","dimension6":"organization","dimension7":"content_type"}});gtag("config", "G-CSLL4ZEK4L", {"groups":"default","page_placeholder":"PLACEHOLDER_page_location","link_attribution":true,"allow_ad_personalization_signals":false});gtag("event", "custom", {"node_title":"Education","node_id":"1688546","organization":"\u003Ca href=\u0022\/nist-organizations\/nist-headquarters\/directors-office\/directors-office\/public-affairs-office\u0022 hreflang=\u0022en\u0022\u003EPublic Affairs Office\u003C\/a\u003E","content_type":"Microsite"});</script> <link rel="canonical" href="https://www.nist.gov/education" /> <link rel="shortlink" href="https://www.nist.gov/node/1688546" /> <meta name="citation_title" content="Education | NIST" /> <meta property="og:site_name" content="NIST" /> <meta property="og:type" content="Article" /> <meta property="og:url" content="https://www.nist.gov/education" /> <meta property="og:title" content="Education" /> <meta property="article:published_time" content="2021-11-17T09:36-05:00" /> <meta property="article:modified_time" content="2024-01-23T10:03-05:00" /> <meta name="dcterms.title" content="Education" /> <meta name="dcterms.date" content="2021-11-17T09:36-05:00" /> <meta name="dcterms.type" content="text" /> <meta name="dcterms.format" content="text/html" /> <meta name="dcterms.identifier" content="https://www.nist.gov/education" /> <meta name="dcterms.source" content="NIST" /> <meta name="dcterms.created" content="2021-11-17T09:36-05:00" /> <meta name="dcterms.modified" content="2024-01-23T10:03-05:00" /> <meta name="twitter:card" content="summary_large_image" /> <meta name="twitter:description" content="" /> <meta name="twitter:site" content="NIST" /> <meta name="twitter:title" content="Education" /> <meta name="google-site-verification" content="QMu0ODkER3rN5hLcMLqNVf7e3bkjYsNLTuhqfH48jCA" /> <meta name="Generator" content="Drupal 10 (https://www.drupal.org)" /> <meta name="MobileOptimized" content="width" /> <meta name="HandheldFriendly" content="true" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <meta name="nist_search_modified" class="elastic" content="2024-01-23T10:03:00-05:00" /> <meta name="nist_search_bundle" class="elastic" content="microsite" /> <link rel="icon" href="/themes/custom/nist_www/favicon.ico" type="image/vnd.microsoft.icon" /> <title>Education | NIST</title> <link rel="stylesheet" media="all" href="/sites/default/files/css/css_JPcJrfRNOIbgHIMnm019DaigGf5cGS9O-rpuRY5bnjw.css?delta=0&language=en&theme=nist_www&include=eJx1UO2OwyAMeyE2HgkFyGhugSA-1us9_UG3qdWkSfxwHONYtuDupsl4WdsDm5-q7JcVOUkqiARGAwl4a-Sq_iRUotrMjQbnZU0s4E0rw4ZS0AGe60oNKeYiD9SfxIywc23BiOOysIVionjtqYIdxkzprupWG8aRsOKu14HFAp_x5WWlFwSP5T2adV3P6tM8Jfjb5gHtS8_A19eoGDbpzYwMbqQsm5aETlhlKBAK5KW-fxzMtafcLVNd0D-TRAiJbuTUaKhh0Q5yo9HrgzyKwWjRj_KQvWb42y6zviNjJFdkVnVQO0DfHUybfyL4uY8" /> <link rel="stylesheet" media="all" href="/sites/default/files/css/css_fa1651ZoYZuqCbaIzCHaJC0W6fhWSS6nO014ZFCGwPo.css?delta=1&language=en&theme=nist_www&include=eJx1UO2OwyAMeyE2HgkFyGhugSA-1us9_UG3qdWkSfxwHONYtuDupsl4WdsDm5-q7JcVOUkqiARGAwl4a-Sq_iRUotrMjQbnZU0s4E0rw4ZS0AGe60oNKeYiD9SfxIywc23BiOOysIVionjtqYIdxkzprupWG8aRsOKu14HFAp_x5WWlFwSP5T2adV3P6tM8Jfjb5gHtS8_A19eoGDbpzYwMbqQsm5aETlhlKBAK5KW-fxzMtafcLVNd0D-TRAiJbuTUaKhh0Q5yo9HrgzyKwWjRj_KQvWb42y6zviNjJFdkVnVQO0DfHUybfyL4uY8" /> <link rel="stylesheet" media="print" href="/sites/default/files/css/css_9Coyc_d7BWI3xLJk5PwpQTcYxaLUNGsq-07t6YSu-vo.css?delta=2&language=en&theme=nist_www&include=eJx1UO2OwyAMeyE2HgkFyGhugSA-1us9_UG3qdWkSfxwHONYtuDupsl4WdsDm5-q7JcVOUkqiARGAwl4a-Sq_iRUotrMjQbnZU0s4E0rw4ZS0AGe60oNKeYiD9SfxIywc23BiOOysIVionjtqYIdxkzprupWG8aRsOKu14HFAp_x5WWlFwSP5T2adV3P6tM8Jfjb5gHtS8_A19eoGDbpzYwMbqQsm5aETlhlKBAK5KW-fxzMtafcLVNd0D-TRAiJbuTUaKhh0Q5yo9HrgzyKwWjRj_KQvWb42y6zviNjJFdkVnVQO0DfHUybfyL4uY8" /> <link rel="stylesheet" media="all" href="/sites/default/files/css/css_uEwJurqNqgkyzfHIvDrrjpEdHglCgYzp1VW7rqRMTj8.css?delta=3&language=en&theme=nist_www&include=eJx1UO2OwyAMeyE2HgkFyGhugSA-1us9_UG3qdWkSfxwHONYtuDupsl4WdsDm5-q7JcVOUkqiARGAwl4a-Sq_iRUotrMjQbnZU0s4E0rw4ZS0AGe60oNKeYiD9SfxIywc23BiOOysIVionjtqYIdxkzprupWG8aRsOKu14HFAp_x5WWlFwSP5T2adV3P6tM8Jfjb5gHtS8_A19eoGDbpzYwMbqQsm5aETlhlKBAK5KW-fxzMtafcLVNd0D-TRAiJbuTUaKhh0Q5yo9HrgzyKwWjRj_KQvWb42y6zviNjJFdkVnVQO0DfHUybfyL4uY8" /> <script src="/sites/default/files/js/js_JtHi3E9mRUm2eZxqQyZvyq93aaxzrwZcMhpD2hb_Uvk.js?scope=header&delta=0&language=en&theme=nist_www&include=eJx1UO2OwyAMeyE2HgkFyGhugSA-1us9_UG3qdWkSfxwHONYtuDupsl4WdsDm5-q7JcVOUkqiARGAwl4a-Sq_iRUotrMjQbnZU0s4E0rw4ZS0AGe60oNKeYiD9SfxIywc23BiOOysIVionjtqYIdxkzprupWG8aRsOKu14HFAp_x5WWlFwSP5T2adV3P6tM8Jfjb5gHtS8_A19eoGDbpzYwMbqQsm5aETlhlKBAK5KW-fxzMtafcLVNd0D-TRAiJbuTUaKhh0Q5yo9HrgzyKwWjRj_KQvWb42y6zviNjJFdkVnVQO0DfHUybfyL4uY8"></script> </head> <body class="node-1688546"> <a href="#main-content" class="visually-hidden focusable" data-elastic-exclude> Skip to main content </a> <div class="dialog-off-canvas-main-canvas" data-off-canvas-main-canvas>  <section data-elastic-exclude class="usa-banner" aria-label="Official government website"> <div class="usa-accordion"> <header class="usa-banner__header"> <div class="usa-banner__inner"> <div class="grid-col-auto"> <img class="usa-banner__header-flag" src="/libraries/nist-component-library/dist/img/us_flag_small.png" alt="U.S. flag"> </div> <div class="grid-col-fill tablet:grid-col-auto"> <p class="usa-banner__header-text">An official website of the United States government</p> <p class="usa-banner__header-action" aria-hidden="true">Here’s how you know</p> </div> <button class="usa-accordion__button usa-banner__button" aria-expanded="false" aria-controls="gov-banner-default"> <span class="usa-banner__button-text">Here’s how you know</span> </button> </div> </header> <div class="usa-banner__content usa-accordion__content" id="gov-banner-default"> <div class="grid-row grid-gap-lg"> <div class="usa-banner__guidance tablet:grid-col-6"> <img class="usa-banner__icon usa-media-block__img" src="/libraries/nist-component-library/dist/img/icon-dot-gov.svg" role="img" alt="" aria-hidden="true"> <div class="usa-media-block__body"> <p> <strong>Official websites use .gov</strong> <br/> A <strong>.gov</strong> website belongs to an official government organization in the United States. </p> </div> </div> <div class="usa-banner__guidance tablet:grid-col-6"> <img class="usa-banner__icon usa-media-block__img" src="/libraries/nist-component-library/dist/img/icon-https.svg" role="img" alt="" aria-hidden="true"> <div class="usa-media-block__body"> <p> <strong>Secure .gov websites use HTTPS</strong> <br/> A <strong>lock</strong> ( <span class="icon-lock"> <svg xmlns="http://www.w3.org/2000/svg" width="52" height="64" viewbox="0 0 52 64" class="usa-banner__lock-image" role="img" aria-labelledby="banner-lock-title banner-lock-description" focusable="false"> <title id="banner-lock-title">Lock</title> <desc id="banner-lock-description">A locked padlock</desc><path fill="#000000" fill-rule="evenodd" d="M26 0c10.493 0 19 8.507 19 19v9h3a4 4 0 0 1 4 4v28a4 4 0 0 1-4 4H4a4 4 0 0 1-4-4V32a4 4 0 0 1 4-4h3v-9C7 8.507 15.507 0 26 0zm0 8c-5.979 0-10.843 4.77-10.996 10.712L15 19v9h22v-9c0-6.075-4.925-11-11-11z"/></svg> </span> ) or <strong>https://</strong> means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. </p> </div> </div> </div> </div> </div> </section>  <div data-elastic-exclude>  <div class="nist-print-header" style="display:none;"> <p class="nist-print-header__url">https://www.nist.gov/education</p> <img class="nist-print-header__logo" width="289" height="38" src="/libraries/nist-component-library/dist/img/logo/nist_logo_sidestack.svg" alt="National Institute of Standards and Technology" /> </div> <div class="usa-overlay"></div> <header class="usa-header nist-header--www nist-header--minimal" role="banner"> <div class="usa-navbar"> <div class="usa-logo flex-fill"> <a href="/" title="National Institute of Standards and Technology" aria-label="Home"> <img src="/libraries/nist-component-library/dist/img/logo/logo.svg" alt="National Institute of Standards and Technology" width="300px" height="80px" /> </a> </div> <div class="usa-header__right grid-row flex-auto"> <div class="grid-col-fill nist-header__search-group"> <form class="usa-search usa-search--small" accept-charset="UTF-8" action="/search" id="search_form" method="get"> <div role="search"> <label class="usa-sr-only" for="search-form">Search NIST</label> <input class="usa-input" id="search-form" type="search" name="s" placeholder="Search NIST" required="" maxlength="128"> <button class="usa-button" type="submit"><img src="/libraries/nist-component-library/dist/img/usa-icons-bg/search--white.svg" class="usa-search__submit-icon" alt="Search"></button> </div> </form> </div> <div class="grid-col-auto padding-left-1"> <button class="usa-menu-btn">Menu</button> </div> </div> </div> <nav aria-label="Primary navigation" class="usa-nav"> <div class="usa-nav__inner"> <button class="usa-nav__close">Close</button> <ul class="usa-nav__primary usa-accordion"> <li class="usa-nav__primary-item"> <button class="usa-accordion__button usa-nav__link" aria-expanded="false" aria-controls="primary_menu-1"><span>Topics</span></button> <div id="primary_menu-1" class="usa-nav__submenu usa-megamenu"> <div class="grid-row"> <div class="tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/topics" class="usa-nav__link">All Topics</a> </li> <li class="usa-nav__submenu-item"> <a href="/advanced-communications" class="usa-nav__link">Advanced communications</a> </li> <li class="usa-nav__submenu-item"> <a href="/artificial-intelligence" class="usa-nav__link">Artificial intelligence</a> </li> <li class="usa-nav__submenu-item"> <a href="/bioscience" class="usa-nav__link">Bioscience</a> </li> <li class="usa-nav__submenu-item"> <a href="/buildings-construction" class="usa-nav__link">Buildings and construction</a> </li> <li class="usa-nav__submenu-item"> <a href="/chemistry" class="usa-nav__link">Chemistry</a> </li> <li class="usa-nav__submenu-item"> <a href="/climate" class="usa-nav__link">Climate</a> </li> <li class="usa-nav__submenu-item"> <a href="/cybersecurity" class="usa-nav__link">Cybersecurity</a> </li> <li class="usa-nav__submenu-item"> <a href="/electronics" class="usa-nav__link">Electronics</a> </li> <li class="usa-nav__submenu-item"> <a href="/energy" class="usa-nav__link">Energy</a> </li> </ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/environment" class="usa-nav__link">Environment</a> </li> <li class="usa-nav__submenu-item"> <a href="/fire" class="usa-nav__link">Fire</a> </li> <li class="usa-nav__submenu-item"> <a href="/forensic-science" class="usa-nav__link">Forensic science</a> </li> <li class="usa-nav__submenu-item"> <a href="/health" class="usa-nav__link">Health</a> </li> <li class="usa-nav__submenu-item"> <a href="/information-technology" class="usa-nav__link">Information technology</a> </li> <li class="usa-nav__submenu-item"> <a href="/infrastructure" class="usa-nav__link">Infrastructure</a> </li> <li class="usa-nav__submenu-item"> <a href="/manufacturing" class="usa-nav__link">Manufacturing</a> </li> <li class="usa-nav__submenu-item"> <a href="/materials" class="usa-nav__link">Materials</a> </li> <li class="usa-nav__submenu-item"> <a href="/mathematics-statistics" class="usa-nav__link">Mathematics and statistics</a> </li> </ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/metrology" class="usa-nav__link">Metrology</a> </li> <li class="usa-nav__submenu-item"> <a href="/nanotechnology" class="usa-nav__link">Nanotechnology</a> </li> <li class="usa-nav__submenu-item"> <a href="/neutron-research" class="usa-nav__link">Neutron research</a> </li> <li class="usa-nav__submenu-item"> <a href="/performance-excellence" class="usa-nav__link">Performance excellence</a> </li> <li class="usa-nav__submenu-item"> <a href="/physics" class="usa-nav__link">Physics</a> </li> <li class="usa-nav__submenu-item"> <a href="/public-safety" class="usa-nav__link">Public safety</a> </li> <li class="usa-nav__submenu-item"> <a href="/quantum-information-science" class="usa-nav__link">Quantum information science</a> </li> <li class="usa-nav__submenu-item"> <a href="/resilience" class="usa-nav__link">Resilience</a> </li> <li class="usa-nav__submenu-item"> <a href="/standards" class="usa-nav__link">Standards</a> </li> <li class="usa-nav__submenu-item"> <a href="/transportation" class="usa-nav__link">Transportation</a> </li> </ul> </div> </div> </div> </li> <li class="usa-nav__primary-item"> <a class="usa-nav__link" href="/publications">Publications</a> </li> <li class="usa-nav__primary-item"> <button class="usa-accordion__button usa-nav__link" aria-expanded="false" aria-controls="primary_menu-3"><span>Labs & Major Programs</span></button> <div id="primary_menu-3" class="usa-nav__submenu usa-megamenu"> <div class="grid-row"> <div class="tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/adlp" class="usa-nav__link">Assoc Director of Laboratory Programs</a> </li> <li class="usa-nav__submenu-item"> <a href="/laboratories" class="usa-nav__link">Laboratories</a> <ul class="usa-nav__submenu-list"> <li> <a href="/ctl" class="usa-nav__link">Communications Technology Laboratory</a> </li> <li> <a href="/el" class="usa-nav__link">Engineering Laboratory</a> </li> <li> <a href="/itl" class="usa-nav__link">Information Technology Laboratory</a> </li> <li> <a href="/mml" class="usa-nav__link">Material Measurement Laboratory</a> </li> <li> <a href="/pml" class="usa-nav__link">Physical Measurement Laboratory</a> </li> </ul> </li> </ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/user-facilities" class="usa-nav__link">User Facilities</a> <ul class="usa-nav__submenu-list"> <li> <a href="/ncnr" class="usa-nav__link">NIST Center for Neutron Research</a> </li> <li> <a href="/cnst" class="usa-nav__link">CNST NanoFab</a> </li> </ul> </li> <li class="usa-nav__submenu-item"> <a href="/labs-major-programs/research-test-beds" class="usa-nav__link">Research Test Beds</a> </li> <li class="usa-nav__submenu-item"> <a href="/laboratories/projects-programs" class="usa-nav__link">Research Projects</a> </li> <li class="usa-nav__submenu-item"> <a href="/laboratories/tools-instruments" class="usa-nav__link">Tools & Instruments</a> </li> </ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/major-programs" class="usa-nav__link">Major Programs</a> <ul class="usa-nav__submenu-list"> <li> <a href="/baldrige" class="usa-nav__link">Baldrige Performance Excellence Program</a> </li> <li> <a href="/chips" class="usa-nav__link">CHIPS for America Initiative</a> </li> <li> <a href="/mep" class="usa-nav__link">Manufacturing Extension Partnership (MEP)</a> </li> <li> <a href="/oam" class="usa-nav__link">Office of Advanced Manufacturing</a> </li> <li> <a href="/spo" class="usa-nav__link">Special Programs Office</a> </li> <li> <a href="/tpo" class="usa-nav__link">Technology Partnerships Office</a> </li> </ul> </li> </ul> </div> </div> </div> </li> <li class="usa-nav__primary-item"> <button class="usa-accordion__button usa-nav__link" aria-expanded="false" aria-controls="primary_menu-4"><span>Services & Resources</span></button> <div id="primary_menu-4" class="usa-nav__submenu usa-megamenu"> <div class="grid-row"> <div class="tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/services-resources/standards-and-measurements" class="usa-nav__link">Standards and Measurements</a> <ul class="usa-nav__submenu-list"> <li> <a href="/calibrations" class="usa-nav__link">Calibration Services</a> </li> <li> <a href="/nvlap" class="usa-nav__link">Laboratory Accreditation (NVLAP)</a> </li> <li> <a href="/nist-quality-system" class="usa-nav__link">Quality System</a> </li> <li> <a href="/srm" class="usa-nav__link">Standard Reference Materials (SRMs)</a> </li> <li> <a href="/sri" class="usa-nav__link">Standard Reference Instruments (SRIs)</a> </li> <li> <a href="/standardsgov" class="usa-nav__link">Standards.gov</a> </li> <li> <a href="/pml/time-and-frequency-division/time-services" class="usa-nav__link">Time Services</a> </li> <li> <a href="/pml/owm" class="usa-nav__link">Office of Weights and Measures</a> </li> </ul> </li> </ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/services-resources/software" class="usa-nav__link">Software</a> </li> <li class="usa-nav__submenu-item"> <a href="/data" class="usa-nav__link">Data</a> <ul class="usa-nav__submenu-list"> <li> <a href="https://webbook.nist.gov/chemistry/" class="usa-nav__link">Chemistry WebBook</a> </li> <li> <a href="https://nvd.nist.gov/" class="usa-nav__link">National Vulnerability Database</a> </li> <li> <a href="/pml/productsservices/physical-reference-data" class="usa-nav__link">Physical Reference Data</a> </li> <li> <a href="/srd" class="usa-nav__link">Standard Reference Data (SRD)</a> </li> </ul> </li> <li class="usa-nav__submenu-item"> <a href="https://www.nist.gov/shop" class="usa-nav__link">Storefront</a> </li> <li class="usa-nav__submenu-item"> <a href="/tpo" class="usa-nav__link">License & Patents</a> </li> </ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="https://csrc.nist.gov/" class="usa-nav__link">Computer Security Resource Center (CSRC)</a> </li> <li class="usa-nav__submenu-item"> <a href="/nist-research-library" class="usa-nav__link">NIST Research Library</a> </li> </ul> </div> </div> </div> </li> <li class="usa-nav__primary-item"> <button class="usa-accordion__button usa-nav__link" aria-expanded="false" aria-controls="primary_menu-5"><span>News & Events</span></button> <div id="primary_menu-5" class="usa-nav__submenu usa-megamenu"> <div class="grid-row"> <div class="tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/news-events/news" class="usa-nav__link">News</a> </li> <li class="usa-nav__submenu-item"> <a href="/news-events/events" class="usa-nav__link">Events</a> </li> <li class="usa-nav__submenu-item"> <a href="/blogs" class="usa-nav__link">Blogs</a> </li> <li class="usa-nav__submenu-item"> <a href="/feature-stories" class="usa-nav__link">Feature Stories</a> </li> <li class="usa-nav__submenu-item"> <a href="/awards" class="usa-nav__link">Awards</a> </li> </ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/video-gallery" class="usa-nav__link">Video Gallery</a> </li> <li class="usa-nav__submenu-item"> <a href="/image-gallery" class="usa-nav__link">Image Gallery</a> </li> <li class="usa-nav__submenu-item"> <a href="/pao/media-contacts" class="usa-nav__link">Media Contacts</a> </li> </ul> </div> </div> </div> </li> <li class="usa-nav__primary-item"> <button class="usa-accordion__button usa-nav__link usa-current" aria-expanded="false" aria-controls="primary_menu-6"><span>About NIST</span></button> <div id="primary_menu-6" class="usa-nav__submenu usa-megamenu"> <div class="grid-row"> <div class="tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/about-nist" class="usa-nav__link">About Us</a> <ul class="usa-nav__submenu-list"> <li> <a href="/director/leadership" class="usa-nav__link">Leadership</a> </li> <li> <a href="/director/nist-organization-structure" class="usa-nav__link">Organization Structure</a> </li> <li> <a href="/about-nist/budget-planning" class="usa-nav__link">Budget & Planning</a> </li> </ul> </li> <li class="usa-nav__submenu-item"> <a href="/about-nist/contact-us" class="usa-nav__link">Contact Us</a> </li> <li class="usa-nav__submenu-item"> <a href="/about-nist/visit" class="usa-nav__link">Visit</a> </li> <li class="usa-nav__submenu-item"> <a href="/careers" class="usa-nav__link">Careers</a> <ul class="usa-nav__submenu-list"> <li> <a href="/iaao/academic-affairs-office" class="usa-nav__link">Student programs</a> </li> </ul> </li> </ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/about-nist/work-nist" class="usa-nav__link">Work with NIST</a> </li> <li class="usa-nav__submenu-item"> <a href="/history" class="usa-nav__link">History</a> <ul class="usa-nav__submenu-list"> <li> <a href="http://nistdigitalarchives.contentdm.oclc.org/" class="usa-nav__link">NIST Digital Archives</a> </li> <li> <a href="/nist-museum" class="usa-nav__link">NIST Museum</a> </li> <li> <a href="/nist-and-nobel" class="usa-nav__link">NIST and the Nobel</a> </li> </ul> </li> <li class="usa-nav__submenu-item"> <a href="/education" class="usa-nav__link usa-current">Educational Resources</a> </li> </ul> </div> </div> </div> </li> </ul> </div> </nav> </header>  </div> <div class="grid-container"> <div data-drupal-messages-fallback class="hidden"></div> </div> <div id="block-nist-www-content" class="nist-block" > <div class="nist-block microsite-content" > <div class="nist-content-row nist-content-row--width-full paragraph paragraph--type--text-bg-color paragraph--view-mode--default"> <div class="nist-content-row__inner"> <div class="text-long"> <div class="nist-image"> <img alt="Color graphic that displays a robotic arm, line graph, microscope, and lab setup" height="888" loading="lazy" src="/sites/default/files/images/2021/12/06/EducationOutreach_IdentifierGraphic_Version4_3%20Panel_Full%20Scene.png" typeof="foaf:Image" width="2886"> </div> </div> </div> </div> <div class="nist-content-row nist-content-row--width-full paragraph paragraph--type--text-bg-color paragraph--view-mode--default"> <div class="nist-content-row__inner"> <div class="text-long"> <div class="nist-blog-header "> <div class="nist-blog-header__bkgrd"> <div class="nist-blog-header__main grid-container"> <div class="grid-row"> <h1 class="nist-blog-header__title">Education</h1> </div> </div> </div> </div> </div> </div> </div> <div class="nist-content-row nist-content-row--width-normal paragraph paragraph--type--text-bg-color paragraph--view-mode--default"> <div class="nist-content-row__inner"> <div class="text-long"> <p class="font-sans-lg padding-y-3">Science and technology standards have a huge impact on our lives. Technical standards keep us safe, enable technology to advance, and help businesses succeed. They quietly make the modern world tick and prevent technological problems. Inside these pages and in our registry, you will find information about standards and measurements that can enrich your educational experiences. You can also find out more about the educational opportunities we provide for students, teachers and lifelong learners. Happy exploring.</p> </div> </div> </div> <div class="nist-content-row nist-content-row--width-full paragraph paragraph--type--text-bg-color paragraph--view-mode--default"> <div class="nist-content-row__inner"> <div class="text-long"> <div class="grid-container"> <div class="grid-row grid-gap-2 margin-top-4"> <div class="nist-card tablet:grid-col-3"> <div class="nist-card__inner nist-card__inner--blue padding-3"> <div class="nist-card__image"><svg height="100px" id="Layer_1" version="1.1" viewBox="0 0 64 65" width="150px" x="0" xml:space="preserve" y="0"> <title id="magTitle"></title> <desc id="magDesc">Magnifying Glass Icon</desc> <style type="text/css">.st01{fill:#1b4ecd} </style> <metadata /> <path class="st01" d="M56.3 6.9c-9.1-8.8-23.6-8.5-32.4.6-7.2 7.5-8.5 19-3 27.9L2.3 54.9c-2.2 2.3-2.1 5.9.2 8 2.3 2.1 5.8 2.1 8-.2l18.7-19.4c11 6.2 25 2.4 31.2-8.6 5.1-9.1 3.4-20.6-4.1-27.8zM27.7 36.6c-7.3-7-7.5-18.6-.5-25.9s18.6-7.5 25.9-.5c7.3 7 7.5 18.6.5 25.9-7 7.3-18.6 7.5-25.9.5z" id="Path_62" /> </svg></div> <div class="nist-card__title text-center padding-y-3"> <h3>NEST-R Resource Registry</h3> </div> <a class="usa-button usa-button--blue" href="https://nestr.nist.gov">Learn More</a></div> </div> <div class="nist-card tablet:grid-col-3"> <div class="nist-card__inner nist-card__inner--red padding-3"> <div class="nist-card__image"><svg height="100px" id="Layer_1" version="1.1" viewBox="0 0 49 76" width="150px" x="0" xml:space="preserve" y="0"> <title id="kiloTitle"></title> <desc id="kiloDesc">Kilogram Icon</desc> <style type="text/css">.st02{fill:#ff525e} </style> <metadata /> <path class="st02" d="M48.6 30c.1-4.6-2.6-6.4-4.9-7.2-2.2-.7-4.5-1.3-6.6-1.8l-1.5-.4c-1.3-.6-2.3-1.6-2.8-3-.1-1 .1-1.8 1.6-2.4C35.5 14.7 39 13 39 9c0-2.8-1.6-5-4.9-6.3C28.2 0 21.4 0 15.4 2.6c-3.2 1.4-4.9 3.4-5 6.2-.2 4.2 3.5 5.9 4.7 6.5 1.5.7 1.8 1.5 1.7 2.5-.1.9-1.6 2.5-2.9 2.8-2.7.7-5.8 1.4-8.8 2.5-2.9 1-4.4 3.3-4.3 6.5.1 4.2.1 8.5.1 12.7V64.5c0 4.9 1.1 6.4 5.6 8.2 1 .4 2 .7 3 .9 4.7 1.2 9.6 1.8 14.5 1.7 2.7 0 5.4-.2 8.1-.4 3.7-.5 7.3-1.3 10.8-2.4l1.1-.3c1.8-.5 4.7-2.1 4.7-6.9-.2-12.8-.2-24.4-.1-35.3zm-4.8 35.4c0 1.9-.6 2-1.2 2.2l-1.1.3c-3.3 1-6.6 1.8-10 2.2-7 .9-14 .5-20.9-1.2-.8-.2-1.6-.5-2.4-.8-2.5-1-2.5-1-2.5-3.7V42.3c0-4.2 0-8.5-.1-12.8 0-1.4.4-1.7 1.1-1.9 2.6-.9 5.2-1.6 8.4-2.4 3-.7 6.3-3.8 6.5-7.2.2-3.1-1.6-6-4.5-7.1-2-.9-2-1.5-1.9-1.9 0-.4 0-1.1 2.1-2 2.3-1 4.9-1.6 7.4-1.6 2.6 0 5.1.6 7.5 1.6 2 .9 2 1.5 2 2 0 .4 0 1-1.9 1.8-2.9 1.2-4.7 4.2-4.3 7.3.4 3.2 3.7 6.4 6.3 7.1l1.5.4c2.1.5 4.3 1.1 6.3 1.7 1.1.4 1.6.8 1.6 2.5 0 11.1 0 22.7.1 35.6z" /> <path class="st0" d="M22.9 38.7h-2.5l-3.6 8h-.1v-8h-2.5v17.4h2.5v-5.2l1.3-2.5 2.9 7.7h2.6l-4-10.4z" /> <path class="st0" d="M30.8 48.7h2V52c0 .5-.1 1-.5 1.3-.7.6-1.7.6-2.4 0-.4-.3-.5-.8-.5-1.3v-9.2c0-.5.1-1 .5-1.3.7-.6 1.7-.6 2.4 0 .4.3.5.8.5 1.3v.9h2.5v-.9c0-.6-.1-1.3-.4-1.9-.2-.5-.5-1-1-1.3-1.2-1-2.9-1.3-4.4-.8-.5.2-.9.4-1.3.8s-.7.8-1 1.3c-.3.6-.4 1.2-.4 1.9V52c0 .6.1 1.3.4 1.9.2.5.6.9 1 1.3s.8.6 1.3.8c1 .4 2 .4 3 0 .5-.2 1-.5 1.4-.8.4-.4.7-.8 1-1.3.3-.6.4-1.2.4-1.9v-5.5h-4.5v2.2z" /> </svg></div> <div class="nist-card__title text-center padding-y-3"> <h3>Metric Program</h3> </div> <a class="usa-button usa-button--red" href="https://www.nist.gov/pml/weights-and-measures/metric-si/si-education-training">Learn More</a></div> </div> <div class="nist-card tablet:grid-col-3"> <div class="nist-card__inner nist-card__inner--green padding-3"> <div class="nist-card__image"><svg height="100px" id="Layer_1" version="1.1" viewBox="0 0 62 62" width="150px" x="0" xml:space="preserve" y="0"> <title id="commentTitle"></title> <desc id="commentDesc">Comment Icon</desc> <style type="text/css">.st03{fill:#169647} </style> <metadata /> <path class="st03" d="M59.1 1H2.9C1.7 1 .6 2 .6 3.2v38c0 1.3 1 2.3 2.2 2.3h22.8v13.8c0 .9.5 1.7 1.3 2.1.3.2.7.2 1 .2.5 0 1.1-.2 1.5-.5L48 43.5h11.1c1.3 0 2.3-1 2.3-2.2v-38C61.4 2 60.3 1 59.1 1zm-2.3 38h-9.6c-.5 0-1.1.2-1.5.5L30.2 52.4V41.3c0-1.3-1-2.3-2.2-2.3H5.2V5.6h51.5l.1 33.4z" id="Path_63" /> </svg></div> <div class="nist-card__title text-center padding-y-3"> <h3>Internships and Fellowships</h3> </div> <a class="usa-button usa-button--green" href="https://www.nist.gov/iaao/academic-affairs-office">Learn More</a></div> </div> <div class="nist-card tablet:grid-col-3"> <div class="nist-card__inner nist-card__inner--brown padding-3"> <div class="nist-card__image"><svg height="100px" id="Layer_1" version="1.1" viewBox="0 0 38 70" width="150px" x="0" xml:space="preserve" y="0"> <title id="lightTitle"></title> <desc id="lightDesc">Lightning Bolt Icon</desc> <style type="text/css">.st04{fill:#ab8b71} </style> <metadata /> <g id="Group_362" transform="translate(-648.462 -48.491)"> <g id="Group_357"> <path class="st04" d="M650.3 117.8c.9.5 2 .2 2.6-.6l32.4-44.6c.7-.9.5-2.2-.5-2.8-.3-.3-.8-.4-1.2-.4H675L685.4 52c.6-1 .3-2.2-.7-2.8-.3-.2-.7-.3-1-.3h-24.3c-.9 0-1.7.6-2 1.5L649.3 83c-.3 1.1.4 2.2 1.5 2.5.2 0 .3.1.5.1h9.2l-11.1 29.8c-.4.8 0 1.9.9 2.4zm15-33.6c.4-1-.1-2.2-1.2-2.6-.2-.1-.5-.1-.7-.1h-9.6l7.1-28.5H680l-10.3 17.3c-.6 1-.3 2.2.7 2.8.3.2.7.3 1 .3h8.2l-21.3 29.4 7-18.6z" id="Path_56" /> </g> </g> </svg></div> <div class="nist-card__title text-center padding-y-3"> <h3>K-12 Curriculum Materials</h3> </div> <a class="usa-button usa-button--brown" href="https://www.nist.gov/kids/resources-parents-teachers-and-students">Learn More</a></div> </div> </div> </div> </div> </div> </div> <div class="nist-content-row nist-content-row--width-full paragraph paragraph--type--text-bg-color paragraph--view-mode--default"> <div class="nist-content-row__inner"> <div class="text-long"> <div class="grid-container padding-y-4"> <div class="nist-region-heading nist-region-heading--red"> <h2>Meet the SI Superheroes</h2> </div> <div class="grid-row grid-gap"> <div class="tablet:grid-col"> <figure class=" align-center nist-video" role="group"> <div data-media-id="609071"> <div class="video-embed-field"><div class="video-embed-field-lazy" data-video-embed-field-lazy="<div class="video-embed-field-provider-nist-kaltura video-embed-field-responsive-video"><iframe width="854" height="480" frameborder="0" allow="autoplay *; fullscreen *; encrypted-media *" allowfullscreen="allowfullscreen" src="https://www.kaltura.com/p/684682/sp/68468200/embedIframeJs/uiconf_id/31013851/partner_id/684682?iframeembed=true&amp;entry_id=1_6uxxwjil?iframeembed=true&amp;entry_id=1_6uxxwjil&amp;flashvars%5BautoPlay%5D=1"></iframe> </div> "><img alt="League of SI Superheroes Episode 4: Two Truths & a Lie" loading="lazy" src="https://cdnsecakmi.kaltura.com/p/684682/sp/68468200/thumbnail/entry_id/1_6uxxwjil/width/1280" typeof="foaf:Image"> <button class="video-embed-field-lazy-play"></button> <div class="video-embed-field-lazy-title">League of SI Superheroes Episode 4: Two Truths & a Lie</div> </div> </div> </div> <figcaption class="nist-image__caption"></figcaption> </figure> <div class="nist-meter"> <figure class=" nist-image" role="group"> <div> <img alt="Meterman" height="220" loading="lazy" src="/sites/default/files/styles/220_x_220_limit/public/images/2021/12/06/meter-man.png?itok=68R5xH8T" typeof="foaf:Image" width="220"> </div> <figcaption class="nist-image__caption"></figcaption> </figure> </div> </div> <div class="tablet:grid-col"> <h3>Who are your SI Superheroes?</h3> <div class="nist-candela"> <figure class=" nist-image" role="group"> <div> <img alt="candela" height="220" loading="lazy" src="/sites/default/files/styles/220_x_220_limit/public/images/2021/12/06/candela.png?itok=CNcC5J0I" typeof="foaf:Image" width="220"> </div> <figcaption class="nist-image__caption"><div class="nist-image__credit"> <span class="nist-image__credit-label">Credit:</span> ©2020 U.S. Secretary of Commerce. All Rights Reserved. </div></figcaption> </figure> </div> <p class="padding-right-2">Emerging from their environmentally shielded world headquarters at NIST, the SI superheroes are dedicated to the fight against uncertainty, imprecision, and inaccuracy and to improving the quality of our lives and the things we build.</p> <ul> <li><a data-entity-substitution="canonical" data-entity-type="media" data-entity-uuid="c7b23e46-30fd-4e62-bdf0-3d689fa6607c" href="/video/league-si-superheroes-episode-4-two-truths-lie" media_library="Media Library" title="League of SI Superheroes Episode 4: Two Truths & a Lie">Episode 4: Two Truths and a Lie</a></li> <li><a data-entity-substitution="canonical" data-entity-type="media" data-entity-uuid="7786cc47-7a35-4f61-9c2b-9a6440fe4445" href="/video/mass-hysteria" media_library="Media Library" title="Mass Hysteria">Episode 3: Mass Hysteria</a></li> <li><a data-entity-substitution="canonical" data-entity-type="media" data-entity-uuid="3d6c5b4b-7a76-4c84-a1c7-201e17cbea2f" href="/video/running-out-time" media_library="Media Library" title="Running Out of Time!">Episode 2: Running Out of Time!</a></li> <li><a data-entity-substitution="canonical" data-entity-type="media" data-entity-uuid="5a631b74-d38b-498e-9b2b-1af838df7838" href="/video/desperate-measures" media_library="Media Library" title="Desperate Measures!">Episode 1: Desperate Measures!</a></li> </ul> <p><a class="usa-button usa-button--outline" href="https://www.nist.gov/kids/meet-measurement-league">Learn More</a></p> <div class="nist-prodsec"> <figure class=" nist-image" role="group"> <div> <img alt="proffsec" height="220" loading="lazy" src="/sites/default/files/styles/220_x_220_limit/public/images/2021/12/06/proffsec.png?itok=AvABCynB" typeof="foaf:Image" width="220"> </div> <figcaption class="nist-image__caption"></figcaption> </figure> </div> </div> </div> </div> </div> </div> </div> <div class="nist-content-row nist-content-row--width-full paragraph paragraph--type--text-bg-color paragraph--view-mode--default"> <div class="nist-content-row__inner"> <div class="text-long"> <div class="grid-container padding-top-9"> <div class="nist-region-heading"> <h2>Featured Collections</h2> </div> <p>Check out the resources NIST has to offer in these areas. And make sure to come back next month to check out resources in other collections.</p> </div> </div> </div> </div> <div class="grid-container margin-y-4 paragraph--card" id="paragraph-1977631"> <div class="grid-row grid-gap-2"> <div class="nist-card tablet:grid-col-4 nist-card-bg nist-card-bg--accent-cool"> <div class="nist-card__inner"> <div class="nist-card__image"> <a href="https://nestr.nist.gov/explore/keyword/results-redirect?name=metric"> <div class="entity-reference"> <img src="/sites/default/files/styles/400_x_250_focal_point/public/images/2022/10/03/Tape%20measure.jpg?itok=oOtpub24" width="400" height="250" alt="blue backgrond with a coiled yellow metric tape measure" loading="lazy" typeof="foaf:Image" /> </div> </a> </div> <div class="nist-card__title padding-y-5"> <h3> Metric System </h3> </div> <div class="nist-card__links"> <div class="nist-card__button"> <a href="https://nestr.nist.gov/explore/keyword/results-redirect?name=metric" class="usa-button usa-button--outline usa-button--inverse"> Learn More </a> </div> </div> </div> </div> <div class="nist-card tablet:grid-col-4 nist-card-bg nist-card-bg--primary"> <div class="nist-card__inner"> <div class="nist-card__image"> <a href="https://nestr.nist.gov/explore/keyword/results-redirect?name=fire-research"> <div class="entity-reference"> <img src="/sites/default/files/styles/400_x_250_focal_point/public/images/2021/12/06/fireresearch.png?itok=r92sfTB4" width="400" height="250" alt="Forest burning" loading="lazy" typeof="foaf:Image" /> </div> </a> </div> <div class="nist-card__title padding-y-5"> <h3> Fire Research </h3> </div> <div class="nist-card__links"> <div class="nist-card__button"> <a href="https://nestr.nist.gov/explore/keyword/results-redirect?name=fire-research" class="usa-button usa-button--outline usa-button--inverse"> Learn More </a> </div> </div> </div> </div> <div class="nist-card tablet:grid-col-4 nist-card-bg nist-card-bg--secondary"> <div class="nist-card__inner"> <div class="nist-card__image"> <a href="https://nestr.nist.gov/explore/keyword/results-redirect?name=environment"> <div class="entity-reference"> <img src="/sites/default/files/styles/400_x_250_focal_point/public/images/2021/12/06/environment.png?itok=3qiZ5D-T" width="400" height="250" alt="Large Trees" loading="lazy" typeof="foaf:Image" /> </div> </a> </div> <div class="nist-card__title padding-y-5"> <h3> Environment </h3> </div> <div class="nist-card__links"> <div class="nist-card__button"> <a href="https://nestr.nist.gov/explore/keyword/results-redirect?name=environment" class="usa-button usa-button--outline usa-button--inverse"> Learn More </a> </div> </div> </div> </div> </div> </div> <div class="paragraph paragraph--type--topic-featured paragraph--view-mode--default nist-content-row--width-full bg-base-lightest margin-y-5"> <div class="grid-container"> <div class="nist-card nist-card--horizontal nist-card--horizontal-full nist-card--base-lightest"> <div class="nist-card__inner"> <div class="nist-card__image"> <a href="/feature-stories/why-you-need-standards"> <div class="entity-reference"> <figure class="nist-image"> <img src="/sites/default/files/styles/800w_x_400h/public/images/2021/12/06/Rubble_of_the_Great_Baltimore_Fire_Sepia.png.webp?itok=dG5FhCYl" width="800" height="400" alt="Rubble of great Baltimore Fire" loading="lazy" typeof="foaf:Image" /> <figcaption class="nist-image__caption"> <div data-caption-editable="true" class="nist-image__caption-content"> </div> </figcaption> </figure> </div> </a> </div> <div class="nist-card__title"> <h3> Why do Standards Matter? </h3> </div> <div class="nist-card__content"> <div class="text-long"><p>Why do standards matter? Take fire hydrants. If you ever have had to call 911 to report a fire, you don’t have to worry about the hoses that firefighters bring when they arrive.</p> <p>But that wasn’t the case in the Great Baltimore Fire of 1904, which burned for more than a day and destroyed 1,500 buildings. Starting on a quiet Sunday morning, the fire spread quickly and overwhelmed the city’s ability to fight it alone. Fire companies from New York, Philadelphia, Wilmington, Harrisburg and elsewhere swiftly rushed in to help. They had more than enough water and people to fight the fire, but there was a problem: Most of their fire hoses wouldn’t fit the hydrants, prolonging the fire to 30 hours and damaging an area the size of 70 blocks in the city’s business district.</p></div> </div> <div class="nist-card__links"> <div class="nist-card__button"> <a href="/feature-stories/why-you-need-standards" class="usa-button ">Read more about why you need standards</a> </div> </div> </div> </div> </div> </div> <div class="nist-content-row nist-content-row--width-full paragraph paragraph--type--text-bg-color paragraph--view-mode--default"> <div class="nist-content-row__inner"> <div class="text-long"> <div class="grid-container padding-top-5"> <div class="nist-region-heading"> <h2>How Do You Measure It?</h2> </div> <p class="width-desktop">Much of the world around us would be a mystery without good measurements. Whether it’s the depth of the ocean, the nutrients in your cereal, or the age of dinosaur fossils, measurements enable us to learn about our world and make good decisions about what to do in everyday life. In our “How Do You Measure It?” web series, we answer questions that will help you better understand how our modern world works — and why good measurements play an important role in your life.</p> <p>See a few examples below</p> <div class="grid-row grid-gap-2"> <div class="nist-card tablet:grid-col-4 nist-card--topic"> <div style="background-color: #6a82fb"> <div class="nist-card__image" style="background-color: #6a82fb"> <div class="entity-reference"> <figure class=" align-center nist-image--lightbox nist-image" role="group"> <div data-lightbox="https://www.nist.gov/sites/default/files/styles/2800_x_2800_limit/public/images/2021/10/29/HDYMI_Banners_Time_Langing_Page.png?itok=fPcJ399a" data-link="/node/1685661" data-media-id="627086"> <a href="/how-do-you-measure-it/how-do-you-measure-second"><img alt="Illustration shows a clock, waves moving through dots, and the word "TIME."" height="1610" loading="lazy" src="/sites/default/files/images/2021/10/29/HDYMI_Banners_Time_Langing_Page.png" typeof="foaf:Image" width="3223"></a> </div> <figcaption class="nist-image__caption"></figcaption> </figure> </div> </div> <div class="nist-card__content display-flex flex-column"> <h2 class="nist-card__title padding-bottom-5 text-align-center"><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="fd8ab91e-28c4-4290-b7aa-81dd791e3575" href="/how-do-you-measure-it/how-do-you-measure-second" media_library="Media Library" style="color: #fff;" title="How Do You Measure a Second?">How Do We Measure Time?</a></h2> <div class="nist-card__links flex-align-self-center"> <div class="nist-card__button"><a class="usa-button usa-button--outline usa-button--inverse" data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="fd8ab91e-28c4-4290-b7aa-81dd791e3575" href="/how-do-you-measure-it/how-do-you-measure-second" media_library="Media Library" title="How Do You Measure a Second?">See Answer</a></div> </div> </div> </div> </div> <div class="nist-card tablet:grid-col-4 nist-card--topic"> <div style="background-color: #c3ede1"> <div class="nist-card__image" style="background-color: #c3ede1"> <div class="entity-reference"> <figure class=" align-center nist-image" role="group"> <div data-link="/node/1672316"> <a href="/how-do-you-measure-it/how-do-smoke-detectors-work"><img alt="Animated illustration of kitchen appliances showing toast popping up and soundwaves coming from smoke alarm is labeled "HDYMI? Detecting Smoke."" height="699" loading="lazy" src="/sites/default/files/styles/1400_x_1400_limit/public/images/2021/07/01/HWDY_Banners-landing%20page-crop.png?itok=kTHfJyPu" typeof="foaf:Image" width="1400"></a> </div> <figcaption class="nist-image__caption"></figcaption> </figure> </div> </div> <div class="nist-card__content display-flex flex-column"> <h2 class="nist-card__title padding-bottom-5 text-align-center"><a href="https://www.nist.gov/how-do-you-measure-it/how-do-smoke-detectors-work">How Do Smoke Alarms Detect Fires? </a></h2> <div class="nist-card__links flex-align-self-center"> <div class="nist-card__button"><a class="usa-button usa-button--outline" href="https://www.nist.gov/how-do-you-measure-it/how-do-smoke-detectors-work">See Answer</a></div> </div> </div> </div> </div> <div class="nist-card tablet:grid-col-4 nist-card--topic"> <div style="background-color: #D4E6E8"> <div class="nist-card__image" style="background-color: #D4E6E8"> <div class="entity-reference"> <figure class=" align-center nist-image" role="group"> <div data-link="/node/1654511"> <a href="/how-do-you-measure-it/how-do-you-measure-depth-ocean"><img alt="Ocean Depth Banner Image" height="699" loading="lazy" src="/sites/default/files/styles/1400_x_1400_limit/public/images/2021/03/25/HDYMI-landingpage-ocean-crop-new.png?itok=6RthUelB" typeof="foaf:Image" width="1400"></a> </div> <figcaption class="nist-image__caption"></figcaption> </figure> </div> </div> <div class="nist-card__content display-flex flex-column"> <h2 class="nist-card__title padding-bottom-5 text-align-center"><a href="https://www.nist.gov/how-do-you-measure-it/how-do-you-measure-depth-ocean">How Do You Measure the Depth of the Ocean?</a></h2> <div class="nist-card__links flex-align-self-center"> <div class="nist-card__button"><a class="usa-button usa-button--outline" href="https://www.nist.gov/how-do-you-measure-it/how-do-you-measure-depth-ocean">See Answer</a></div> </div> </div> </div> </div> </div> <p class="text-align-center"><a class="usa-button" data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="7ea5c8ed-9467-447d-bdcb-67b9573d4a56" href="/how-do-you-measure-it" media_library="Media Library" title="How Do You Measure It?">View full series</a></p> </div> </div> </div> </div> </div> </div> <div data-elastic-exclude>  <footer class="nist-footer padding-bottom-4"> <div class="grid-container nist-footer__info"> <div class="grid-row"> <div class="tablet:grid-col-6"> <div class="nist-footer__logo"> <a href="/" title="National Institute of Standards and Technology" rel="home"> <img class="nist-footer__logo-img" src="/libraries/nist-component-library/dist/img/logo/NIST-Logo-Brand-White.svg" alt="National Institute of Standards and Technology logo" width="300px" height="42px" /> </a> </div> <div class="nist-footer__contact"> <h3 class="nist-footer__contact-heading">HEADQUARTERS</h3> <address> 100 Bureau Drive<br> Gaithersburg, MD 20899<br> <a href="tel:301-975-2000">301-975-2000</a> </address> <p> <a href="mailto:do-webmaster@nist.gov">Webmaster</a> | <a href="https://www.nist.gov/about-nist/contact-us">Contact Us</a> | <a href="https://www.nist.gov/visit">Our Other Offices</a> </p> </div> </div> <div class="tablet:grid-col-6"> <div class="nist-footer__social-links"> <a class="nist-social nist-social--x-white" href=" https://x.com/NIST"> <span>X.com</span> </a> <a class="nist-social nist-social--facebook-white" href=" https://www.facebook.com/NIST"> <span>Facebook</span> </a> <a class="nist-social nist-social--linkedin-white" href=" https://www.linkedin.com/company/nist"> <span>LinkedIn</span> </a> <a class="nist-social nist-social--instagram-white" href=" https://www.instagram.com/nist/"> <span>Instagram</span> </a> <a class="nist-social nist-social--youtube-white" href=" https://www.youtube.com/NIST"> <span>YouTube</span> </a> <a class="nist-social nist-social--giphy-white" href=" https://giphy.com/nist"> <span>Giphy</span> </a> <a class="nist-social nist-social--rss-white" href=" https://www.nist.gov/news-events/nist-rss-feeds"> <span>RSS Feed</span> </a> <a class="nist-social nist-social--envelope-white" href=" https://public.govdelivery.com/accounts/USNIST/subscriber/new"> <span>Mailing List</span> </a> </div> <div class="nist-footer__feedback"> How are we doing? <a class="usa-button" rel="nofollow" href="/form/nist-gov-feedback?destination=/education" title="Provide feedback">Feedback</a> </div> </div> </div> </div> <div class="grid-container"> <div class="nist-footer__nav" role="navigation"> <ul> <li class="nist-footer__menu-item"> <a href="https://www.nist.gov/privacy-policy">Site Privacy</a> </li> <li class="nist-footer__menu-item"> <a href="https://www.nist.gov/oism/accessibility">Accessibility</a> </li> <li class="nist-footer__menu-item"> <a href="https://www.nist.gov/privacy">Privacy Program</a> </li> <li class="nist-footer__menu-item"> <a href="https://www.nist.gov/oism/copyrights">Copyrights</a> </li> <li class="nist-footer__menu-item"> <a href="https://www.commerce.gov/vulnerability-disclosure-policy">Vulnerability Disclosure</a> </li> <li class="nist-footer__menu-item"> <a href="https://www.nist.gov/no-fear-act-policy">No Fear Act Policy</a> </li> <li class="nist-footer__menu-item"> <a href="https://www.nist.gov/office-director/freedom-information-act">FOIA</a> </li> <li class="nist-footer__menu-item"> <a href="https://www.nist.gov/environmental-policy-statement">Environmental Policy</a> </li> <li class="nist-footer__menu-item"> <a href="https://www.nist.gov/summary-report-scientific-integrity">Scientific Integrity</a> </li> <li class="nist-footer__menu-item"> <a href="https://www.nist.gov/nist-information-quality-standards">Information Quality Standards</a> </li> <li class="nist-footer__menu-item"> <a href="https://www.commerce.gov/">Commerce.gov</a> </li> <li class="nist-footer__menu-item"> <a href="http://www.science.gov/">Science.gov</a> </li> <li class="nist-footer__menu-item"> <a href="http://www.usa.gov/">USA.gov</a> </li> <li class="nist-footer__menu-item"> <a href="https://vote.gov/">Vote.gov</a> </li> </ul> </div> </div> </footer>  </div> </div> <script type="application/json" data-drupal-selector="drupal-settings-json">{"path":{"baseUrl":"\/","pathPrefix":"","currentPath":"node\/1688546","currentPathIsAdmin":false,"isFront":false,"currentLanguage":"en"},"pluralDelimiter":"\u0003","suppressDeprecationErrors":true,"back_to_top":{"back_to_top_button_trigger":100,"back_to_top_speed":1200,"back_to_top_prevent_on_mobile":false,"back_to_top_prevent_in_admin":true,"back_to_top_button_type":"image","back_to_top_button_text":"Back to top"},"google_analytics":{"account":"G-HEQ0YF2VYL","trackOutbound":true,"trackMailto":true,"trackTel":true,"trackDownload":true,"trackDownloadExtensions":"7z|aac|arc|arj|asf|asx|avi|bin|bsh|c|csv|doc(x|m)?|dot(x|m)?|dw(fx|g|gd)|dxf|eps|epub|exe|f(90)|flv|gif|gz|gzip|hqx|jar|jpe?g|js|m1v|mp(2|3|4|e?g)|mobi|mov(ie)?|msi|msp|pdf|phps|pl|png|ppt(x|m)?|pot(x|m)?|pps(x|m)?|ppam|sld(x|m)?|thmx|qtm?|ra(m|r)?|rfa|rtf|rvt|sch|sea|sit|swf|tar|tgz|tif|txt|txz|wav|wma|wmv|wpd|wrl|xls(x|m|b)?|xlt(x|m)|xlam|xml|xsd|z|zip"},"nist_search":{"clickTracking":"search-report-click","isDebug":false,"clickTrackEnabled":true,"message":"NIST Search in debug mode. Check the browsers network inspector for Click Track reporting results..."},"data":{"extlink":{"extTarget":false,"extTargetNoOverride":false,"extNofollow":false,"extNoreferrer":false,"extFollowNoOverride":false,"extClass":"ext","extLabel":"(link is external)","extImgClass":false,"extSubdomains":true,"extExclude":"\\.gov\\\/|\\.mil\\\/|\\manufacturingusa\\.com\\\/","extInclude":"","extCssExclude":".ck-editor, .nist-social, .nist-video-thumbnail__lightbox-trigger, a.nist-icon--mail-blue","extCssExplicit":"","extAlert":true,"extAlertText":"Thank you for visiting NIST. We hope your visit was informative. We have provided a link to this site because it has information that may be of interest to our users. NIST does not necessarily endorse the views expressed or the facts presented on this site. Further, NIST does not endorse any commercial products that may be advertised or available on this site. Click OK to be directed to your link.","mailtoClass":"0","mailtoLabel":"(link sends email)","extUseFontAwesome":false,"extIconPlacement":"after","extFaLinkClasses":"fa fa-external-link","extFaMailtoClasses":"fa fa-envelope-o","whitelistedDomains":[]}},"user":{"uid":0,"permissionsHash":"799e86e1b846dec23e8558802ab352c65189779447aba2515e9cc22afa524258"}}</script> <script src="/sites/default/files/js/js_PHU9IaMjouCKyPeRMxGVOgc3bD_uuzlYV49YBhns0xg.js?scope=footer&delta=0&language=en&theme=nist_www&include=eJx1UO2OwyAMeyE2HgkFyGhugSA-1us9_UG3qdWkSfxwHONYtuDupsl4WdsDm5-q7JcVOUkqiARGAwl4a-Sq_iRUotrMjQbnZU0s4E0rw4ZS0AGe60oNKeYiD9SfxIywc23BiOOysIVionjtqYIdxkzprupWG8aRsOKu14HFAp_x5WWlFwSP5T2adV3P6tM8Jfjb5gHtS8_A19eoGDbpzYwMbqQsm5aETlhlKBAK5KW-fxzMtafcLVNd0D-TRAiJbuTUaKhh0Q5yo9HrgzyKwWjRj_KQvWb42y6zviNjJFdkVnVQO0DfHUybfyL4uY8"></script> <script src="https://siteimproveanalytics.com/js/siteanalyze_6017546.js" async></script> <script src="/sites/default/files/js/js_EMD5Wui2jkb3iX62ga78KEsvY_N30NbJRVzFSoPrdBE.js?scope=footer&delta=2&language=en&theme=nist_www&include=eJx1UO2OwyAMeyE2HgkFyGhugSA-1us9_UG3qdWkSfxwHONYtuDupsl4WdsDm5-q7JcVOUkqiARGAwl4a-Sq_iRUotrMjQbnZU0s4E0rw4ZS0AGe60oNKeYiD9SfxIywc23BiOOysIVionjtqYIdxkzprupWG8aRsOKu14HFAp_x5WWlFwSP5T2adV3P6tM8Jfjb5gHtS8_A19eoGDbpzYwMbqQsm5aETlhlKBAK5KW-fxzMtafcLVNd0D-TRAiJbuTUaKhh0Q5yo9HrgzyKwWjRj_KQvWb42y6zviNjJFdkVnVQO0DfHUybfyL4uY8"></script> <script type="text/javascript">window.NREUM||(NREUM={});NREUM.info={"beacon":"bam.nr-data.net","licenseKey":"37b7ccb661","applicationID":"1089704227","transactionName":"YFxUN0sADEdYVkBaClkWdwBNCA1aFkVVVABoWlcAUQQ=","queueTime":4,"applicationTime":35,"atts":"TBtXQQMaH0k=","errorBeacon":"bam.nr-data.net","agent":""}</script></body> </html>

CINXE.COM

Education | NIST