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In this math lesson, learners make estimates to analyze the number of apples per acre, and visualize the magnitude of one million.

In this activity, learners explore work, forces, simple machines, and construction. This lesson guide includes simple ways to demonstrate these principles as well as hands-on activities.

In this activity, learners explore dinosaurs and fossils by creating a diorama.

In this activity, learners investigate color vision as well as plan and conduct their own experiments.