S5·E12 The Untidy Classroom

When Caillou complains about having to tidy up, Miss Martin suggests an experiment they wont tidy up the classroom for a few days, and theyll see what happens. At first, the kids think this is fantastic... until they cant find their puzzle pieces, they keep stepping on toys, and they cant even do their morning exercises. Caillou finally realizes its time to tidy up, and decides to lead the clean-up crew!