Note 1:
The debate over whether students should be assigned homework, and how much is appropriate at each grade level, has continued for more than a century. Over the years, numerous research studies have collected data to determine how much homework students typically complete in a night, and whether there is any positive relationship between homework and overall academic performance. Time and again, the research fails to show a positive correlation between homework and academic success, particularly for elementary school students. Speaking to Kelly Wallace for CNN in 2015, Stephanie Donaldson-Pressman of the New England Center for Pediatric Psychology described data showing that homework does not benefit children's grades and is even "detrimental to their attitude about school, their grades, their self-confidence, their social skills, and their quality of life."

Note 2:
[E]ducation researcher Alfie Kohn reports that student performance and attitudes toward learning in classrooms actually improve when no homework is assigned.

Note 3:
Since research does not demonstrate a measurable benefit to academic progress from assigning homework in the years prior to high school, Kohn recommends that it be assigned sparingly, if at all, especially to younger children.

Note 4:
The COVID-19 pandemic further highlighted problems of equity, as students lost the support offered by schools during lockdowns and school closures in 2020 and beyond, and many students had increased responsibilities at home, such as watching younger siblings while daycares were closed.