Students must match volunteer hours needed to hours available for various projects. Depending on the environmental priorities of the students, there are several feasible solutions. As Paige searches for the cave, we learn about topographic maps and geometric concepts important for measurement. An accident occurs when Paige reaches the cave. Students must help her friend Ryan find the cave on a map and give directions for the Rescue Squad to get there as quickly as possible.
Students learn to use bearing guides and concepts of similar triangles.
Many teachers report greater success with this adventure after students have some knowledge of basic angle measurement. Only non-motorized modes of transportation are allowed. Students need to read a topographic map, interpret data about speeds of racers, and use compass clues to predict who will win the race. Building on skills introduced in The Right Angle , this episode involves angle and linear measurement, use of bearing guides, and topographic map reading. Students in Grade 6 and up also learn about triangulation and circle measurement.