Change one thing
Compare two universes. Keep every dial except Λ fixed, and write evidence before a conclusion.
- Ages 13–16 · introductory
- 35–45 min
- Controlled universes
- 2
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Educator lab · free classroom materials
Printable worksheets and downloads
Everything here prints or downloads without an account. The worksheets are web pages built for paper; the cheat sheet and the example set are files.
Map a habitability boundary
Run four assigned ε cases. Combine the group’s observations, then bracket—not guess—the boundaries.
- Ages 14–18 · intermediate
- 45–55 min
- Controlled universes
- 4
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Evidence versus model audit
For each universe, trace what is observed in our universe, what the toy assumes, what it computes and what the renderer illustrates.
- Ages 15–18 · critical inquiry
- 50–65 min
- Controlled universes
- 3
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Files
Curriculum and model examples reviewed 28 August 2026