(*Make sure you go all the way to the end of this post to see the great giveaway we have to help you celebrate Pi Day!)
I told the kids that we were going to have a geometry day and explained that we would be learning about shapes. My 9 year old informed me, "We already know our shapes!" To which I replied, "Oh, do you?" They know their basic shapes, but we haven't done much with shapes with more than 4 sides. So, by the end of our geometry day, even my 9 year old had learned something :)