TeachEngineering
Teach Engineering: Sound for Sight
Echolocation is the ability to orient by transmitting sound and receiving echoes from objects in the environment. As a result of a Marco-Polo type activity and subsequent lesson plan, students learn basic concepts of echolocation. They...
Curated OER
Macmillan/mc Graw Hill: The World, Vol. 1: Culture & Change: Lesson 2 Quiz
Short quiz tests your knowledge of culture and change in the Middle Ages.