Homeworks

I dont know why teachers like to leave homework.  I get very bored when I have homework and also I used to become angry, because I didnt finish doing it fast.  Many people say that homework help us to practice the topics we have seen in the class, but for other many people it doesnt help.  I dont know if it helps us or not I only know that making homework is very tedious and boring and that I dont like it.