When I was about 9 or 10, my dad was the coach of a high school baseball team and I was convinced I was smarter than his players because I would hear all the coached talk in the office about how the players were idiots and the dumb things they did. Of course being a good student myself, I knew I must be much smarter than his high school players.
So at practice I would borrow their math and science books from their book bags and find problems I could do, as proof I was smarter than them. It was always a mystery to me why there were letters and numbers in their math problems, and I would think to myself, well no wonder they're always getting things wrong... they don't even use numbers to do math!
A childhood belief about classes

others believed things like this
- I thought for some reason that chewing tobacco was REQUIRED for Major League Baseball players.— Jeff
- I used to think that I was smarter than adults. Now I know kids are smarter than adults in many ways— Marshall M
- I used to think that when I ate vegetables I will be smarter.— Dark_X_Raider
- When I was little, I used to believe that football players really had shoulders that big.— Angie
- I used to believe that 7 times 12 was equal to 83 or 84, depending on the math problem.— Eric Swensen
- I used to believe that records were the power source for record players.— bob