Math scholars of many ages examine the concept of population density and then discuss the significance of the population densities of Minnesota and China. They figure the population density of their school.

Tenth graders explore slavery in the U.S. by researching the web. In this U.S. history lesson, 10th graders identify the geography of Connecticut and the overall involvement the state had in the slavery process. Students view data of the...

Census-takers view the Internet to find the total population of a city and its total land area. They work with different mathematical scenarios that involve populations and land area in their city. They complete math problems and unit...