Curated OER
CO2 and Air Pollution
Seventh graders observe and test for the presence of carbon dioxide gas. They compare concentrations of carbon dioxide gas and conclude high concentrations of carbon dioxide gas are unhealthy for human beings.
Curated OER
Hello Mexico City
Middle schoolers research and explain the functions, characteristics, and cultural aspects of Mexico City and analyze how they have affected development and settlement. Students work in groups to gather information and report back to the...