Why is Maths split up into Algebra and Calculus in American schools?

Aoibheann: Why is Maths split up into Algebra and Calculus in American schools?
Where I’m from we just do everything in Maths. We don’t have sections out of Maths. Do you have Maths class then Algebra and Calculus separately?

Answers and Views:

Answer by ♥Infatuated ☠ Love♥
idk i guess its just levels in the school like 1 level Pre-Algebra/Algebra, 2 level Calculus, 3 level i guess Algebra 2.
and yes my school actually all the schools are like that