How much homework is too much?

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HOUSTON - A new study published by the American Psychological Association says that adolescents don't benefit from any more than about one hour of homework a night in math and science.

Habits of nearly 8,000 teens with an average age of 14 were examined. Students' test scores actually declined when they were assigned more than 90 minutes of homework.

The best amount of time spent on homework seems to be about 70 minutes.  One of the study's authors says it is most important that students are assigned homework regularly, and the aim should be instilling good work habits in teens.

Other studies have shown the average high school student spends more than three hours a night doing homework.

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