Homework is work that is given by teachers for students to do at home. Homework is usually given to students by their school teachers. It is a practice work which helps students revise what they've learned that day.
Homework helps students to remember what they learned. Some students will get more homework and some will get less. This depends on how old they are, what grade/primary/year they are in and how smart/intelligent they are. This could help decide what level they are at.
Some students say that homework is a waste of time and that they do enough work at school. However, it is often believed that homework is important for a student because it may help in their exams and education. Homework is essential for anyone that is confused or behind a subject.
Homework helps parents to get to know about their children progress in studies. It can also teach a child to be responsible. However, it has sometimes been a controversial form of learning as some groups argue about its disadvantages. 
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