It should take no more than about 20 minutes a night for second graders to complete their homework, he said. That means first graders get 10 minutes of homework, second graders get 20 and so on. But too much homework in second grade or assignments that are too hard can have a negative impact on young learners, Cooper said. Some parents who are extremely concerned about ensuring that their children achieve to their maximal ability may put pressure on educators, and this has led some teachers to assign students too much homework, especially at the high-school level, Cooper said.
But the key is for students to get the right amount of homework — not too much of it and not too little — so that it can have positive effects on learning and school performance, Cooper said. But other educators are steadfast that the right amount of homework in elementary school may be little to none.
Research suggests that homework in elementary school does not have a positive effect on student achievement, and could even have a negative impact, said Etta Kralovec, an associate professor of teacher education at the University of Arizona South, and the author of "The End of Homework" Beacon Press, The findings are more complex in middle- and high-school students, with many studies finding a correlation between classroom grades and homework, Kralovec said.
But these results could also raise additional questions, because tracking students — separating them into lower-level and advanced-level classes, for example — also begins at these grades, and kids in the higher-track classes are often assigned more homework.
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