Curated OER
Reading Satellite Images
Students analyze satellite images. In this astronomy instructional activity, students examine 3 satellite images in order to understand how satellite images are taken and what they can teach scientists.
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...