Here is an excellent article on how doodling helps students remember information they are learning. It is worth reading and doodling about.

http://ww2.kqed.org/mindshift/2015/07/15/making-learning-visible-doodling-helps-memories-stick/

(Click the image above or copy & paste the following link: http://ww2.kqed.org/mindshift/2015/07/15/making-learning-visible-doodling-helps-memories-stick/)