Changing Constellations

Lesson Plan | July 2021

The purpose of this assessment probe is to elicit students’ ideas about why the constellations change with the seasons. The probe is designed to find out how students use the Earth’s spin and orbit to explain why…

Freebies for Science Teachers, Week of July 20, 2020

Reports Article | July 2020

Freebies and Opportunities for Science and STEM Teachers, September 3, 2024

Reports Article | August 2024

Freebies and Opportunities for Science and STEM Teachers, September 13, 2022

Reports Article | September 2022

Freebies and Opportunities for Science and STEM Teachers, April 11, 2023

Reports Article | April 2023

Freebies and Opportunities for Science and STEM Teachers, November 28, 2023

Reports Article | November 2023

Freebies and Opportunities for Science and STEM Teachers, February 6, 2024

Reports Article | February 2024

Apple in a Plane

Lesson Plan | June 2021

The purpose of this assessment probe is to elicit students’ ideas about force related to the interaction between inanimate objects. The probe is designed to determine which forces students think act on an object at rest…

Science/STEM Laboratory Occupancy Load Level: It Is the Law

Blog Post | October 2021

Freebies and Opportunities for Science and STEM Teachers, October 15, 2024

Reports Article | October 2024

Freebies and Opportunities for Science and STEM Teachers, January 7, 2025

Reports Article | December 2024

End-of-School-Year Science Instructional Space Cleanup

Blog Post | June 2025

How Do Animals Brush Their Teeth?

Journal Article | December 2018

Spotting Depression in High School Students

Journal Article | December 2015