Willow Tree
Interior Angles, Exterior Angles, and Diagonals of Polygons
How does the number of sides of a polygon affect the angle measures? Learners recognize a pattern in finding the total measure of interior and exterior angles and the number of diagonals. They use the patterns to calculate...
International Technology Education Association
Telescope as Time Machine
This resource provides an explanation of NASA's GALEX mission and how the space-based telescope can view distant galaxies as they were billions of years ago. The resource also discusses the other aspects of galaxies that GALEX...
Maryland Department of Education
The Concept of Diversity in World Literature Lesson 8: Nonfiction Close Reading
As part of their study of Things Fall Apart, class members conduct a close reading of a section of Chinua Achebe's essay, "An Image of Africa: Racism in Conrad's Heart of Darkness." Jigsaw groups then compare the voice in the essay...
Center for Learning in Action
Density
Explore the concept of density within states of matter—gases, liquids, and solids—through a group experiment in which young scientists test objects' texture, color, weight, size, and ability to sink or float.
Arizona State University
Alberto Rios, Arizona State U.: Glossary of Rhymes
This is a very extensive list of rhymes that "Occur frequently in discussions of poetry and critical writing, but not with absolute consistency." All have definitions, and many have examples. They are organized into five categories:...