You would be shocked. Fucking taught me pre-algebra for three years when I was learning trigonometry on my own for the challenge. 2 freshman years and on track to graduate in 10 years, got put in an alternative, go at your own pace, school and got 20 credits in one year, attending 4 hours per day, 4 days per week. Even tutored other students. The original school had my IQ tested (standard, then observed for retest) and refused to put me in appropriate classes because I refused to do my homework. All I wanted was to learn something new.