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In this activity related to the famous "Stroop Effect," learners explore how words influence what we see and how the brain handles "mixed messages." Learners read colored words and are asked to say th

Learners create their own piece of history by decorating, shattering, and piecing together a flowerpot "artifact".

In this online game, learners run an outer space drink stand and thirsty alien customers are on the way.

This activity about cryptographic techniques illustrates how to accomplish a simple, but nevertheless seemingly impossible task—making a fair, random choice by flipping a coin between two people who d

In this outdoor activity, learners cut through and investigate rotten logs and then make log-profile puzzles for each other.