Discovery Education
Sonar & Echolocation
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...
Curated OER
Weather Patterns
Fourth graders collect and chart weather data over the course of the school year either using tools at school or media resources. They agree on weather terms to use in their observations and write them on the assigned sheet. Finally,...