Yes, thats my math work. It shows my dedication, doesnt it?
Technically, doodling does make you remember stuff more easily, and is a fine way to grow more concentrated while listening, because the doodles are more or less brainlessly done.
Which doesn't explain why my margins are full and my head empty.
Robot looks neat, good motion, wheel/feet looks out of place, perhaps because you separated them from the legs with that line, but that's pretty nitpicky for a doodle.
Dripping is awesome and should be everywhere.
You did it well, without too many repeat patterns.