Curated OER
The Geography of the United States
Full of bright maps and interesting information, this presentation details U.S. Geography. Slides include basic facts about size, regions, topography, and demographics, as well as fascinating trivia about the United States, including...
Curated OER
The US Population Problem
In this algebra worksheet, 11th graders calculate how many seconds it takes for the population to increase by one more person. There is an answer key to this problem.