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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.

Learners make their own simple slide rules out of paper and learn how they work.

Put the math of measurement, numbers, and everyday life into improvisational skits.

In this math lesson, learners design an experiment to model a leaky faucet and determine the amount of water wasted due to the leak.

In this math lesson, learners apply the concepts of ratio and proportion to the capture-recapture statistical procedure.

In this activity, learners explore the potential of interchangeable standard parts to create a large number of unique creations in different combinations.

In this outdoor activity, learners investigate the relationship between the slope of a trail and soil erosion.

In this space science activity, learners explore transits and the conditions when a transit may be seen.

Combine math and exercise with this activity. Learners count how many times in a row they can skip rope or throw and catch a ball.

In this math lesson, learners count and compare amounts of money less than or equal to one dollar.

The major goal of this math lesson is to have learners collect data from a variety of experiments, determine what models best fits their data, and explain why their models are best.

In this activity, learners examine the culture and history of the tomb site.

In this math lesson, learners participate in a variety of activities that give them experience in recognizing, describing, and extending repeating and arithmetic patterns.

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.

In this outdoor activity, learners plan a simple foot path and create an environmental impact study of the natural area where the path would be.