How much is too much?
The standard for time spent on homework is 10 minutes per grade level. That means that a kindergarten or first grade student should spend about 10 minutes each night completing homework, a second grader 20 minutes, and so on.
Beginning at the middle school level, when the correlation between time spent on homework and academic success really kicks in, students should spend between one and two hours each night completing assignments. That guideline remains unchanged for high school.
Many teachers, particularly at the elementary level, ask that students spend time reading each night. Time spent reading alone or with an adult is usually in addition to the 10-minute rule and doesn't count as homework time.