Now you see it, now you don't. Our moon seems to pull a disappearing act from time to time—but why? Take your seventh grade scientists above and beyond to discover the truth about the moon and the role it plays in Earth's little...

Examine the contributions of African-Americans in the worlds of art and literature. Over the course of a few days, young scholars will read and analyze a poem, a short story, and a piece of art. They complete a range of...

Learners investigate the symmetries of a convex quadrilateral in a collaborative activity. Rigid motion and complements are explored as learners analyze different cases of reflections across a line.

Picture someone's excitement of seeing a horse for the first time. How about a cow? The Columbian Exchange changed life for not only Native Americans, but also for Europeans and the entire world. The second lesson of a 22-part series...

How does an individual take a stand for a principle or belief? what skills are required to do so? What are the challenges and risks in doing so? Class members study examples of individuals engaging in such activities and then identify...