Curated OER
Graze Like a Cow
Students explore how a cow digests the grass they eat. In this science/math lesson, students compare the quality of forage. Additionally, students determine the effects of rangeland health on the production.
Curated OER
Sound: The Vibration of Materials
Learners recognize that sound is produced by the vibration of materials. They see that the sound produced is dependent on the type of material that is used. Given four types of material; air, string, wood, and metal, students perform an...