The phrase "excessive homework" refers to having too much homework or assignments from school. It means having a large amount of work to complete, which can be overwhelming or more than necessary. Full definition
While some schools equate excessive homework with excellence, and it is true that students benefit from some work at home to learn new material or to practice what they have learned in school, that's not the case with all schools. (thoughtco.com)
I Then presented to Julie the voluminous evidence laid out by Alfie Kohn in The Homework Myth which showed how excessive homework actually doesn't bring any academic benefit, that it just frustrates and makes parents and children alike miserable, and can teach them to actually hate school. (tribecaplaytherapy.com)
I think a previous poster hit on this issue directly: «everyday worst practices in the classroom: excessive homework, test stacking, project stacking, inflexible deadlines, and uncaring response to pleas for relief» While strongly worded, it is not far off. (paloaltoonline.com)