i used to believe that one dozen was the same as one thousand ifound out that it was 12 when i was in 5th grade
A childhood belief about counting

others believed things like this
- I thought to count to one thousand you did 1-100, then 100-199, then came 1,000.— Anon!
- A[n] nth grade teacher only had to finish the nth grade when he or she was in school.— MD Caruso
- When I was in 3rd grade, I used to believe that M&M's took away headaches.— enid
- I used to think, all the way up to eight grade that if you smoked cigarettes you were an alcoholic— praneeth
- Up until the 5th grade, I thought that all Egyptians were extinct. — Amy x
- From preschool to 1st grade I thought that every boy had a "henis."— I know what they're called now