I'd explain the situation to the teacher and refuse some of the homework. Are all of other kids doing all of this stuff? Is it a big deal if it isn't done? I ask because last year DS had lots of homework in grade 1 and I ended up being the volunteer that marked ALL of it. About 1/3 of the class did all of it, 1/3 did some and another 1/3 of the class didn't do any of it. I mentioned it to the teacher the first week and she said "oh it doesn't matter, I can't base any grade on any homework anyway". Gee, thanks for wasting my time.