I began doodling in my 7th grade math class. This is the folder I used for it. I was something of a math prodigy? I finished all of my college math requirements by the end of my first year of high school.
Helen Holmgren was my HS Math Teacher. She didn't appreciate me doodling, so she challenged me and I accepted. Within 2 weeks the right half of the wide chalkboard was dedicated to me. I finished my work within 10 minutes and quietly exited the class, thus I sat in front by the door.
Today my focus is digital tools such as the iPad Pro and ProCreate.