For the past year I've been thinking about an idea of teaching 3rd-5th graders a progressively more sophisticated curriculum all based on the chocolate chip cookie. It would be books with activities, classic project-based learning with lots of side benefits. If you are unschooling your kids I'd love to hear what you think of this idea. The 3rd segment, for 5th grade, would be starting a mock (or real) cookie company where a group of kids collaborates just like in real life. Thanks for your thoughts!