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In this activity, learners will explore pi and the mathematical relationships between a circle's diameter, circumference, and radius.

In this math activity related to volume, learners use problem solving skills to calculate and build a model house for Minus the dog.

In this activity (on page 6 of the PDF), learners plot the path of the sun's apparent movement across the sky on two days, with the second day occurring two or three months after the first.

In this small-group activity, learners assume the roles of pilots, air traffic controllers, and NASA scientists to solve five Air Traffic Control (ATC) problems.