a tool used for remembering what you learned in school so you dont forget the last days lesson . So basically review.
This way the hardworking kids who did their homework are weeded out from the
lazy "cool" ones cause to pass a class you need to have an understanding of what the subject material is all about .
Experts recommend
ten minutes per per grade ie. a grade
9 would get 90min a grade 10 would get 100
min and so on.This beats having
five hours a day but sadly most schools dont follow this rule. Homework was aboloished than brought back because the
USA wanted to stay ahead in the Cold War .