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In this activity, learners will predict the size of a giant scale model of a comb or other rectangular object, then make one. If you tripled the size of a dollar bill, could you sit on it?

In this activity, learners explore the relative sizes and distances of objects in the solar system.

In this math lesson, learners estimate distances between landmarks and use a map and scales to determine the actual distances.

In this three/four-day lesson, learners calculate perimeters and areas and draw the castle plan to scale.

In this outdoor archaeology activity, learners use mathematical skills and scientific inquiry to generate and process information from their own excavation site.

This lesson focuses on surface area and how the shape of sugar crystals may differ as they are grown from sugars of different coarseness.