Discover Density
Description
The Discover Density Set provides materials and activities to guide students through some basic graphical analysis techniques. In each case, an example is worked through and explained. The student then performs a similar analysis using the materials in the set. In the first analysis, students discover the concept as a mathematical constant relating measurements of a particular material. Second, they are asked to experimentally discover an equation that predicts the mass of spheres of unknown but uniform composition, based on their diameters. Finally, they are led to develop an equation in three variables that predicts the mass of cylinders of unknown but uniform composition, based on measurements of their diameters and lengths. Because the items in the set are machined to close tolerances, and average dimensions and masses are given in the teacher’s guide, the set may be used for other purposes, such as a traditional density set, or to test students’ abilities to make accurate measurements.
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