I was a child in school.

My dad thought I should learn more math and science than the school was teaching (or at least, learn it sooner) so he would spend about 30 minutes or so every other night teaching it to me. He did the same for my 2 brothers. I graduated with a chem/physics double major and am now an attorney, my youngest brother just got his CE degree from UI and is going to law school, and my other brother is an MD.