Please remember my blogs are MY opinions. If I use articles and resource I will cite the source. Otherwise my opinions come from common knowledge and experiences I've had. These opinions my differ from your child's teacher. We all have our differences of opinion and our own unique teaching styles.
Students hate homework, parents get fed up with homework, teachers get bogged down grading homework. So why have homework?
I agree that some students have too much homework. That only creates stress and resentment toward school. I feel homework is very important especially when it comes to math and reading. A classroom becomes like home. It is familiar and students get comfortable in the classroom because they feel safe (hopefully) and it is part of their everyday life. When math lessons are given the teacher usually goes through the concepts step by step. Sometimes there are posters that remind the students how to do certain concepts. When math homework is sent home it helps the teacher assess what the student knows outside his/her element. I had such a struggle in math I feel that a little math homework is important. No more than 30 minutes. Same with reading. I think it is important that a child reads a few minutes each night for practice. The more a child practices a concept the better he/she will get with that concept. Same thing with adults. ;)
Three hours of homework...I have to disagree with. If your child is bogged down with homework each night I think it would be a good idea to talk with the teacher. This could be an indicator that something isn't quite right if he/she is not getting their work finished at school. It could be something as simple as they are getting distracted by a friend they are sitting near. It could be they are piddling and not staying on task. It could be the child has a learning challenge. When you talk to your child's teacher it is important that you do not come across as accusing the teacher of not knowing how to do her job. Talk together figure out what is best for your child and work on strategies to help your child.