Knowledge_On-The-Go_Grade-3Level 3 Module 4 Lesson 17: Objects at Rest

In Lesson 17, students explore the Phenomenon Question: What causes an object to stay at rest even when a force is exerted on it? Students observe an Atwood machine and develop a model (SEP.2) to show how friction can cause (CC.2) an object to remain at rest even when another force is exerted on it.




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