Science
Energy Forms and Transfers: Follow the Energy
Students read about energy forms and conservation, trace energy transfers in six devices, and calculate wasted energy and efficiency.
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Career & technical ed.
Feed Ratios and Rations: Ag Math Problem Set
Students use ratios, percents and unit rates to solve feed-mix, daily-ration, cost and feed-efficiency problems for a made-up beef feeding operation.
Science
Renewable or Nonrenewable? Energy Sources and Your Power Bill
Students classify eight energy sources as renewable or nonrenewable, then calculate sample electricity bills and the savings from a more efficient light bulb.
Technology & computer science
Searching: Linear Search vs. Binary Search
Students search a sorted list of 15 numbers two ways, count how many checks each method needs, and discover why binary search is so fast.
Career & technical ed.
Simple Machines by the Numbers: Levers, Ramps and Pulleys
Students identify the six simple machines and calculate ideal mechanical advantage, effort force, work and efficiency for levers, ramps, pulleys and wheel-and-axle examples.