Well, tutoring can do that, but that's banned for the baby boomer challenge. For other files, if you get a big green smiley face for both mood and homework, tutoring is much more effective. I'm darned if I know how one of my sim-kids managed to get homework without me knowing about it until I saw the ugly, red, not-done-homework face just before the end of school. I've run a lot of scenarios, and none of them end in my test-kid getting homework, and I've left plenty of room for free-will, too. I'm beginning to think that there may have been an object glitch of some sort which forced a sim reset.