A small but growing number of elementary schools and teachers are doing away with homework to allow kids more time to play sports, spend time with families, read and sleep.

The principal at Orchard School in South Burlington, Vermont, says the kindergarten-through-5th-grade school eliminated homework this year, based on research he's found that says there's little to no correlation between homework and achievement for elementary school kids.

But other education experts say that homework is vital and less of it may be the key.

At some elementary schools, like the Orchard School, students' daily home assignment includes reading, playing, extra-curricular activities, dinner with family and sleeping well.

The president of the National Association of Elementary School Principals says the pushback is coming from parents who say their students are stretched too thin.