Sal Khan “TED talk”

Someone sent me this “TED talk” of Sal Khan, founder of Khan Academy, discussing teaching for mastery. It is an interesting watch. Click on the link below …

http://www.ted.com/talks/sal_khan_let_s_teach_for_mastery_not_test_scores?utm_source=newsletter_daily&utm_campaign=daily&utm_medium=email&utm_content=button__2016-09-06#t-77050