During vacation our younger boy was getting a little antsy while his brothers and cousins were playing chess. So, I found a few acorn tops and borrowed a pen from my husband's every day carry bag (this DESERVES its own post sometime) to create some "finger" puppets. He was intrigued and started doing this:
On his own he started stacking, organizing, sorting, and classifying his treasures! Nature builds science and math skills!
Soon he was trading his acorns for leaves with his cousin. What did I say about nature building math skills??