> If the student in the “audience” is struggling, he is free to turn the video off and try something else. That's what his guided exercises are for http://www.

> If the student in the “audience” is struggling, he is free to turn the video off and try something else. That's what his guided exercises are for http://www.khanacademy.org/exercises?exid=linear_equations_1 http://www.khanacademy.org/exercises?exid=linear_equations_1