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  • What Happens When You Bring a Balloon Near Wall

    Lesson Plan | June 2021

    The purpose of this assessment probe is to elicit students’ ideas about electrical interactions. The probe is designed to find out how students visually represent electrical interactions.

  • Talking About Gravity

    Lesson Plan | August 2020

    The purpose of this assessment probe is to elicit students’ ideas about gravity. The probe is designed to determine whether students recognize that gravity is a universal force that exists everywhere on Earth and in…

  • Does It Have to Touch?

    Lesson Plan | June 2021

    The purpose of this assessment probe is to elicit beginning ideas about types of forces. The probe is designed to reveal whether students recognize that forces can act both in direct contact with an object and at a…

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