Curated OER
Sonar Simulation
Students compare and contrast side-scan sonar to other methods used to find objects underwater. In this underwater search lesson, students describe side-scan sonar and make inferences about the topography of an unknown landscape. This...
Curated OER
Hardwood Lumber
Middle schoolers explore hardwood tree products and compare hardwood and softwood trees. They compare and contrast hardwood and softwood leaves and read a flier. After reading they solve equations related to how much feet of board would...