1.0Edupediahttps://www.theedadvocate.org/edupediaWhat are Key Periods? - Edupediarich600338<blockquote class="wp-embedded-content" data-secret="rOyDp1JVuR"><a href="https://www.theedadvocate.org/edupedia/content/what-are-key-periods/">What are Key Periods?</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.theedadvocate.org/edupedia/content/what-are-key-periods/embed/#?secret=rOyDp1JVuR" width="600" height="338" title="“What are Key Periods?” — Edupedia" data-secret="rOyDp1JVuR" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
/* <![CDATA[ */
/*! This file is auto-generated */
!function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document);
//# sourceURL=https://www.theedadvocate.org/edupedia/wp-includes/js/wp-embed.min.js
/* ]]> */
</script>
https://www.theedadvocate.org/edupedia/wp-content/uploads/2018/06/pexels-photo-1028011.jpeg566350The concept that the human brain is primed at particular times to make specific developmental advances, especially during infancy and early childhood. This theory was developed based on the observation of a large number of children.