Get your learners interested in space exploration. Groups design space rovers using design software and then build prototypes of their designs. The farther the rovers can travel, the better. The catch? The rovers must be powered by...

Learners examine the properties of quadrilaterals from the point of view of rigid motion. Different types of quadrilaterals are characterized by their symmetries, so learners explore the symmetries of a described quadrilateral to...

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.

If Earth is modeled by a grapefruit, what planet could be represented by a golf ball? This activity uses everyday and not-so-everyday objects to create a model of the Solar System.

It isn't always easy to tell another person how we feel; and little ones have an even more difficult time identifying and expressing their emotions. They get a chance to discuss and explore how they can express how they feel in different...

A deceptively simple question setup leads to a number of attack methods and a surprisingly sophisticated solution set in this open-ended problem. Young geometers of different strengths can go about defining the solutions graphically,...

Fourth graders write from the perspective of a child in the colonial period. In this writing instructional activity, 4th graders create a fictional character living in the colonial period and write about daily life from their perspective.