The Space Science Institute has built a website geared toward the constructivist learning approach, which posits that learning entails an active and fluid construction of knowledge. Here readers will find downloadable lessons that emphasize student participation and problem solving. Resources include an experiential guide to kinesthetic astronomy, an excellent Saturn Educator Guide, and other astronomy-related resources. To participate in the lesson plans and activities, readers may simply navigate to the topic of their choice and then download the files they find most helpful. For example, Solarscapes, which "presents middle school students with a short, focused study of the physical nature of the Sun," includes a brief introduction, four activities, several figures, and a helpful answer key. Educators looking for reliable space-related resources will find much to appreciate on the Space Science Institute's website.