The Astronomy Clearinghouse provides a way for astronomy educators to share activities and teaching resources. Some activities fit into sequences taught in our courses, which are the Voyages and Planetary Science sequences.
The Clearinghouse was initiated by Stacy Palen and shepherded by Ana Larson, but now you may direct questions, comments, and/or suggestions to: Oliver Fraser (ojf@uw.edu). If the original authors are unknown, please credit the "UW Astronomy Education Clearinghouse."
The Clearinghouse web server includes interactive plots for creating color-magnitude diagrams of star clusters, as well as galaxy rotation curves. You can also access images and spectra of galaxies.