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...

Thirty percent of energy used by schools is used inefficiently! Part two in the series of 12 has groups perform energy audits of their schools as part of the Cool Schools Challenge. Each group is assigned a specific room, performs the...

Go with the flow and use a helpful resource. A set of two activities has learners investigate flow rates. They first determine the flow rate of a faucet by measuring how long it takes to fill a bucket. Using the results, they make a...