Sandy and Dusty Worlds

Journal Article | January 2023

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.

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…