There are many ways to measure our impact. One is the number of people that we reach with our educational presentations. Another is the number of different communities that we reach. But, the way that is the most meaningful to us is the impact that we have on the children we educate. We are amazed by how much the children learn and the thoughtful questions that they ask. Here are some of the thank you notes we have received that show the impact we are having on their lives, and the impact they will have on others.