He, he, he! We're ready for St. Patricks day this year. For our Sat. babysitting playdate we challenged the kids to build a leprechaun trap using simple machines (pull, lever, inclined plane, etc).
The younger ones were not very interested in the idea so the four oldest kids got together and made their contraptions. Three in all, and all of them different. It was fun to see what they came up with. We'll find out tomorrow how well they work!