I was able to lead my students through the steps of the design process. One of the most powerful lessons they learned was that no idea should be discarded because it seemed silly or impossible.

- 5th grade teacher, Longmont, CO

January 2026 Editor's Pick

Unraveling Rising Sea Levels: Exploring Density Through Mixtures and Solutions

Students explore density through hands-on experimentation and collaborative problem-solving. They design and test mixtures using everyday substances, aiming to create the densest solution. Students brainstorm, plan, create, and test their mixtures, recording observations ...

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Free K-12 standards-aligned STEM curriculum for educators everywhere.
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