Curated OER
Bridges
Ninth graders use model-building to help comprehend the forces and phenomena at work in the world around them. They describe gravity as a universal force that pulls everything toward the center of the earth. Students distinguish between...
Curated OER
Feedback and Flowcharts
Sixth graders explain what a negative feedback system is and they distinguish it from a positive feedback system. They describe examples of how negative feedback is used in both nature and technology. , Students define homeostasis, and...