Estimating Population Density 3. Demonstrate the Game Five's a Crowd C. Doing the Activity D. Students Reflecting on the Activity E . A measure of how crowded a region is. The number of people per square mile, per square km, or other unit area. To understand population density and see how division is used to calculate it.
Activity Let students think of each grid as a community.
The peas represent people. Tell students to make a pile of 40 peas and a pile of 80 peas. Explain that one way to tell for sure which community is more crowded is by distributing the peas evenly on each grid. Have students do this so they can see how many people there are for each square. Explain that the average number of people for each square unit is called population density .