I love this Geometric Shapes chart shared by Kathryn on Kindergarten Kindergarten! I had to scroll down to find it, but found a ton of great ideas along the way. I also loved her shape museum. (She has lots of free ideas for teaching math concepts.
Love this idea! Teach kids the digestive system by decorating an apron with markers or fabric paint. When they wear the apron, children will be able to see where the parts of their own digestive system are located.