Council for Economic Education
The Neolithic Agricultural Revolution
What effect could one person's invention have on the human race? In the case of the Neolithic Agricultural Revolution, small improvements in farming methods led to increased food production. The human population began to boom, leading us...
CK-12 Foundation
Limiting Factors to Population Growth: Graphing Population Growth
If any of the limiting factors in an environment change, both animal and plant populations also change. The video explains two different models of growth and the impact of limiting factors. It highlights the carrying capacity of an...
Population Connection
The Human-Made Landscape
Agriculture, deforestation, and urbanization. How have human's changed the planet and how might we mitigate the effects of human activity on the planet? To answer these questions class members research the changes in human land use from...
K20 Learn
Filling Our Land with Landfills: Solid Waste Disposal
Though it comprises only 5 percent of the world's population, the US generates 40 percent of the world's waste. Scholars learn about landfills, their safety, and other solid waste methods. They use experiments and research to learn more....
Wild BC
Is Climate Change Good for Us?
Is it really that big of a deal if the global climate undergoes a little change? Young environmentalists consider this very question as they discuss in small groups the impact of different climate change scenarios on their lives,...
Annenberg Foundation
Skeeters Are Overrunning the World
Skeeters are used to model linear and exponential population growth in a wonderfully organized lesson plan including teachers' and students' notes, an assignment, graphs, tables, and equations. Filled with constant deep-reaching...
School Improvement in Maryland
Demographic Investigation
What are the factors that influence voting patterns? How do these factors influence government funding? Is participation the squeaky wheel gets the grease? Class members interpret graphs and analyze trends to determine what...
School Improvement in Maryland
Smart Growth
New roads, new businesses, new developments, new mass transit systems. All growth has both positive and negative effects on communities. Government classes investigate the principles of Maryland's 1997 Smart Growth program and...
Global Oneness Project
Reclaiming Rivers
Robert Hass's article "Rivers and Stories" underscores the importance of rivers in the development of civilization and the importance of reclaiming supposedly dead rivers and implementing policies that protect river health. Groups...
Howard Hughes Medical Institute
The Making of the Fittest: Got Lactase? The Co-evolution of Genes and Culture
Got milk? Only two cultures have had it long enough to develop the tolerance of lactose as an adult. Learn how the responsible genes evolved along with the cultures that have been consuming milk. This rich film is supplied with a few...
Discovery Education
Sonar & Echolocation
A well-designed, comprehensive, and attractive slide show supports direct instruction on how sonar and echolocation work. Contained within the slides are links to interactive websites and instructions for using apps on a mobile device to...
California Polytechnic State University
Australian Geography Unit
At the heart of this resource is a beautifully detailed PowerPoint presentation (provided in PDF form) on the overall physical geography of Australia, basic facts about the country, Aboriginal history, and Australia culture and lifestyle.