In my school days it mattered not because whether one was of them square on the hypothenuse or one of those e=mc squares the schizophrenic type it made no difference because thinking out of the box was frowned upon.
The curriculum had but one common denominator, no variables or divisible's.
Pie or square buns with a pint of milk was issued to those of us with nits in our hair, compliments of state.
These were accessible after MSIHCETAC that is "Master Sits In His Chair Each Time At Catechism" because I was Dyslexsick.
Oh yeah, the nits on my head were woodworm according to Brother Victor who told me not to scratch them or I would get splinters under my nails, everyone laughed,