Date: Mar 2, 2014 4:42 PM Author: Jonathan J. Crabtree Subject: Re: Intuitive or insane? Khan Academy + Common Core = Bad Pedagogy The issue has been reported to Khan Academy.
"Thank you for your feedback! Issue AI-113921 has been opened and we'll look into it shortly."
I hope Khan Academy cares enough to use a set of scales to explain the algebra of balancing weights rather than a seesaw.