All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission. Khan Academy's math lessons ...
In 2006, Sal Khan started making YouTube videos meant to help his nieces with their math homework. Since then, Khan’s video collection has grown into a huge repository of tutorials used in and out of ...
Free website includes thousands of exercises for helping students prepare for the new standards at their own pace, founder Sal Khan announced Each student will get his or her own learning dashboard to ...
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