Not only does too much homework negatively affect students’ test scores, but new research suggests that even an hour or two of homework each night gives no measurable advantages to students before they enter grades 10 through 12. Sydney University’s Richard Walker headed up the study outlined in his new book “Reforming Homework: Practices, Learning and Policies.”
According to the study, students in elementary school get limited benefits from homework, while middle schoolers get slightly more. It’s not until high school that academic performance becomes enhanced with homework. Even then, too much homework can lead to poor mental and physical health. A lack of sleep is one cause of this, with one study linking sleep deficiencies in teens to obesity. A lack of sleep can also lead to diabetes, another study found.
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