Students explore how to draw contour lines from limited data and extend this knowledge to real data sets. They participate in many opportunities from students to assess their own progress and the exercise is completely online.

Students construct a cross section diagram showing elevation changes on a "cookie island." Using a chocolate chip cookie for an island, they locate the highest point in centimeters on the cookie and create a scale in feet. After tracing...

Students study the bottom structure of underwater habitats and how they can be mapped.