Before I entered the seminary, I used to teach origami classes quite often, to all age groups. I didn’t really have the chance to teach groups while I was living in the Legionaries of Christ, but today I taught origami to a group of homeschooling kids (and their moms), some of whom are my parishioners. It was great fun to do teach a group again, after twenty years!
After two simpler “warm-up” models, we folded traditional Japanese cranes. OshKosh B’gosh has a campaign right now, where they will send an article of clothing to a child in Japan for every origami crane sent to the company (or shown in a photograph). Details are on their Facebook page or on their website. Of course, some of the kids in my class were reluctant to part with their cranes, so we went on to fold the traditional origami bird that flaps its wings as consolation for sending their cranes to OshKosh B’gosh…
Perpetual Learner 
How fun. Good for you.