University of Southern Indiana
Manifest Density
There's a lot content packed into the four lessons of this physical science unit on density. From salad dressing to the water cycle and hot air balloons, these lessons engage students in hands-on activities that explore real-world...
Houghton Mifflin Harcourt
That’s Amazing!: Challenge Activities (Theme 3)
Synonym dominoes, anyone? As part of the activities designed for kids who have mastered the basic concepts in the Houghton Mifflin Harcourt thematic unit That's Amazing! kids are offered a variety of activities that include...
University of California
Euclidean Geometry
Go back to where it all began! Investigate how axiomatic systems and Euclidean geometry are based on undefined terms, common notions, postulates, and propositions by examining passages from Euclid's Elements. (Social studies teachers...