I'm the "bad art teacher"
I have my students draw the icons they use in the animations they code on paper with paint markers. Unlike the art teachers I tell them use every symbol and short-hand we can think of.
This is icon design. If they do "life drawing" techniques their icons will be bad and unreadable.
The kids love this because many of them have not had experience with being successful* drawing.
*successful meaning your friends correctly recognize what you drew and think it's cute.