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In this math activity, learners will create a scale diagram of their backyard or other outdoor area on graph paper.

In this activity, learners will take a walk with their family and incorporate a scavenger hunt. They will explore topics like ABC’s, numbers, colors, and shapes as they search for related items.

In this activity, learners measure the diameter of their water balloons, model an impact, measure the diameter of the “crater” area, and determine the ratio of impactor to crater.

In this outdoor biology and math activity, learners estimate the size of a population of organisms too numerous to count.

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

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.

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

In this activity, learners use their hands as tools for indirect measurement.

In this activity, learners use a simple 3D model to discover why the Moon has phases.

In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

In this activity, learners will measure the length of a shadow and use the distance from the equator to calculate the circumference of the earth.

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

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.