1.0ALSC Bloghttps://www.alsc.ala.org/blogHeather Acerrohttps://www.alsc.ala.org/blog/author/heather-acerro/rich600338<blockquote class="wp-embedded-content" data-secret="EJjDZ8djBq"><a href="https://www.alsc.ala.org/blog/2012/01/s/">Khan Academy</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.alsc.ala.org/blog/2012/01/s/embed/#?secret=EJjDZ8djBq" width="600" height="338" title="“Khan Academy” — ALSC Blog" data-secret="EJjDZ8djBq" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! 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.alsc.ala.org/blog/wp-includes/js/wp-embed.min.js </script> I love it when I find something that is good for me AND my customers. I recently discovered the Khan Academy. Khan Academy is free, fun, educational and totally awesomely wonderful. The site contains over 2,600 videos on math, physics, biology, chemistry, finance & art. Kids (and you!) can start by watching videos on the basics of a topic and then work through practice exercises. There is even a cool scratch pad that you can use as you work out the equations, the system will tell you when you are proficient and ready to move on to the next challenge.           The knowledge map helps you determine the topic that you need to focus on next and is a great visual showing how each piece of knowledge is an important building block.       And if all of that is not enough to convince you...https://www.alsc.ala.org/blog/wp-content/uploads/2012/01/Practice2-234x300.png