We go one day, take our treasure to swap, come home and find the next. Each time the kids earn points to swap for one of their teeth, bones, rocks and treasures.
In nature or in a book, find something that interest the kids. Learn about it and bring the item to the Swap Shop. If you don't have a shell or bone or physical item, you can bring in your "knowledge" or you can bring in a poster, report, diorama... anything to leave at the shop. Each day you can bring in 3 items.
We don't have a master list, but from out trips, we know that knowledge alone is worth about 10 points, a poster board project is worth about 40-50 points and an actual shell, tooth, fossil or bone could be worth more. We saw a boy come in with a complete turtle shell, and he got about 1,000 points!
It turns out that I have a saver and a spender. Much like how a childhood job can reveal behavior about money, it looks like the Swap Shop can do the same.
Joe is 7 and saves all his points. He has a wishlist and is determined to get enough for some fools gold, alligator tooth & shark jaw. He won't share his points with his brother, but suggested setting up an account for James and helping him create his projects.
Interesting how the kids can learn about nature and about the value of points/currency and also reveal their attitudes towards both. And they just think they are having fun.
Look for us there... you might just see our next report on the Monarch Butterfly.