My son had a lot of fun helping me create shapes. We made a triangle, square, and a rectangle. He enjoyed picking up the shapes and looking through them too. When the shapes were set down in front of him, I asked him to point out each shape... and he did!
Next we created 3D shapes. Here he is with a triangular pyramid. He thought the 3D shapes were so interesting how they stood up on their own.
This activity cost a total of $2 to create. I simply bought a bag of marshmallows and a bag of straws at the dollar store. It was an engaging activity for my son and a great learning experience. It was also so much fun to eat marshmallows as we played together too!