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Number and operations  
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Middle school  
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In this problem set, learners will become familiar with two measures of electricity: watts and kilowatt-Hours. They will calculate the electrical consumption of several household items, such as appliances, as well as its cost. Answer key is... (View More)

In this problem set, learners will calculate the parts-per-thousand measure for different scenarios, including ocean salinity as depicted in the image included. Answer key is provided. This is part of Earth Math: A Brief Mathematical Guide to Earth... (View More)

Keywords: Unit conversion
Audience: Middle school, High school
Materials Cost: Free

In this problem set, learners will use a diagram of carbon fluxes, which shows the sources that contribute to current atmospheric carbon dioxide levels, to answer a series of questions. Answer key is provided. This problem is part of Earth Math: A... (View More)

In this problem set, learners will analyze a table of the length of day (hours) and the number of days per year on Earth in past eras. They will calculate future values, plot some of the data and identify the rate of increase. Answer key is... (View More)

Keywords: Inquiry; Table analysis
Audience: Middle school, High school
Materials Cost: Free

In this problem set, learners will analyze a table of electrical consumption of appliances when not in use and consider the total consumption in kilowatt-hours (kWh), associated cost and their own consumption when appliances are in "instant-on" or... (View More)

Audience: Middle school, High school
Materials Cost: Free

This is a booklet containing 37 space science mathematical problems, several of which use authentic science data. The problems involve math skills such as unit conversions, geometry, trigonometry, algebra, graph analysis, vectors, scientific... (View More)

In this problem set, learners will analyze a table of annual electrical consumption by state in gigaWatt-hours (gWh) to answer a series of questions. They will also consider the carbon dioxide produced as a result of this consumption. Answer key is... (View More)

Audience: Middle school, High school
Materials Cost: Free

In this problem set, learners will analyze a table of the axis location of the North Pole as it passes through Earth's surface to understand variations in the planet's rotation axis. Answer key is provided. This is part of "Earth Math: A Brief... (View More)

In this problem set, learners will consider the "Carbon Footprint" of a family of four in a given context, as well as the US and global averages, and compare that with their own to answer a series of questions. They will use an online Carbon... (View More)

Audience: Middle school, High school
Materials Cost: Free

In this problem set, learners will apply the concepts of reflectivity and absorption to derive the likely composition of the materials described in different scenarios. A table with the reflectivity of common materials and the answer key are... (View More)

Audience: Middle school, High school
Materials Cost: Free