Federal Reserve Bank
Sky Boys: How They Built the Empire State Building
How tall is the Empire State Building? Lead your class through a collaborative estimation activity to determine the number of quarters it would take to reach the top and teach the following concepts: human capital, human resources,...
Council for Economic Education
Great Civilizations Develop around Rivers
If you lived in prehistoric times, what kinds of choices could your family make to increase their chance of survival? By making similar decisions in a simulation game, participants discover how specialization creates both opportunity and...
American Chemical Society
What is a Chemical Reaction?
When a candle burns down, what happens to the mass that appears to be shrinking? Lesson begins with a demonstration of the chemical reaction of a candle burning. Then scholars use atom models to observe conservation of mass concretely.