National Council of Teachers of Mathematics
National Debt and Wars
Take a functional approach to the national debt. Learners collect information about the national debt by decade and plot the data. They determine whether an exponential curve is a good fit for the data by comparing the percent changes...
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Urban Ecosystems 4: Metabolism of Urban Ecosystems
Cities are compared to living, breathing, metabolizing organisms. Fourth in a five-part series of lessons, this one focuses on the flow of materials through a city. Links to interesting websites and images make your delivery of...
Curated OER
Aboriginal Hand Prints
A part of a study of Australian Aboriginal culture, class members listen to a Dreamtime story about a father who stenciled his handprint on a rock wall. Class members then make their own hand print art representative of themselves...
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Modeling Population Growth
Students create linear, exponential, and quadratic models of U.S. population data to determine which function best represents U.S. population growth. They predict future populations based on each model.
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Tropical Forest Food Chain
Learners explore the interdependence of the animals and plants in tropical rainforests. They explore the importance of conserving biodiversity and tropical food chains. They create a tropical forest food chain and identify species that...
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Urban Ecosystems 2: Why are There Cities? A Historical Perspective
Second in a series of five lessons, this lesson encourages preteens to consider cities as urban ecosystems. First, they keep a food diary for a few days. They visit the Natrional Agricultural Statistics Service website for current data...
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Careers
Eighth graders research careers on the computer to determine which career they are interested in. They create a spreadsheet using the Excel program and calculate the budget for their desired lifestyle and determine if this income is...