One of the basic maths concepts Baby Bear and I work on at home is naming shapes. Baby Bear gets so proud of himself when he correctly finds and names a circle, "tine-gull" (triangle), "scare" (square), "tangle" (rectangle), "owall" (oval), heart, or star. It makes me quite proud as well. :) One of the activities we did recently to practice a few of these shapes was potato stamping. To make the stamps, I cut a very long potato into thirds. I left one piece alone to be the oval. Then, I used a knife to carve the end of one piece into a square, and another piece into a triangle. Voila! Stamps!