Khan Academy videos are attacked, but so is Powerpoint. Are the two criticisms similar?
Garr Reynolds discussed the cognitive case against Powerpoint, citing John Sweller’s work.
Words and slides are too much at once?
Not if slides contain no words. Then cognitive capacity is increased according to Sweller. If the slides are words, there is too much cognitive load.
What about the diagrams seemingly saying math education should throw every sense at students all at once? Does that work? Has it fixed math ed already?