I took this to the park with my 4 year old. When we had calmed down from walking around I pulled it out and showed her how we can use sunlight to create rainbows and she loved it. I was able to teach her how to bend and bend light to show the many colors that make up white light, a very important lesson for a young child, but she has a good grasp of the idea and has since proven that she can mastered this idea. draw it in my pictures. A great educational tool that easily explains the basics of science. You might only need it once or twice, but it shows that it's great for learning. After that you have a fun item that you can pull out and use on various projects.