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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 meteorological activity, learners get to build their very own anemometer (instrument for measuring wind speed) using a paper cup.

In this math activity, learners make their own bubble wands and determine if the size of the wand affects the number of bubbles it produces.

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

This is a classic exercise for visualizing the scale of the Solar System.

In this activity, learners make their own pinhole viewer in order to measure the size of the sun.

In this math lesson, learners use a variety of manipulatives to explore spatial relationships of squares and their transformations.

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

In this math lesson, learners participate in several activities where they apply measurement skills.

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

In this math lesson (on Page 13), learners predict and simulate the likelihood of an event occurring.

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.