explainertools.

Big ideas.
Small experiments.

Stories, visual lessons, and practical guides for learning something together.

Why interactive explanations can make hard ideas click

Why interactive explanations can make hard ideas click

What visual learning and active-learning research can tell parents—and how to turn a moving picture into a thoughtful experiment.

4 min read

Turn “Why?” into a tiny experiment with your child

Turn “Why?” into a tiny experiment with your child

A practical guide to using interactive explainers with kids: choose one question, predict, test, and connect the idea to everyday life.

4 min read

Why does the Moon change shape? Move it and see.

Why does the Moon change shape? Move it and see.

An animated Moon-phases explanation for families, with a slider experiment that connects sunlight, the Moon’s orbit, and the view from Earth.

4 min read

What does a camera do when it focuses?

What does a camera do when it focuses?

Follow a few rays of light to understand sharp focus, blur, and aperture, then explore a camera lens together.

4 min read