The Gym

Where habits get sharper with practice.

About The Gym (2026 Pilot)

The Gym is a student-facing site. Inside, students can find a series of argument mapping "puzzles" that hone their mapping and reasoning skills through interactive practice. A prior version of this site was called "thinkPUZZLES."
In 2026 we are piloting The Gym with faculty and students. If you have questions about how to join the pilot, please email [email protected]. To learn more about our comprehensive online campus, visit the thinkeru.org homepage.

Sample Puzzle

Lesson Plan

Drag or tap the claims to place them in the map so that they form a logical argument!

Press "Check Answer" after you're done to see the solution!

Thinker

Building habits of mind for clear thinking and productive disagreement through innovative technology and evidence-based pedagogy.

We leverage thousands of years of pedagogy from philosophy and custom education technology to offer a portfolio of courses and programs that teach productive disagreement as an essential part of learning and working communities.

Contact us to learn more at [email protected]

Thinker