Activity 13 · Engineering
Tangram Talk

Materials Two identical tangram sets and barriers.
What to describe
The Describer explains where and how to place each tangram piece without naming the finished image.
Roles
How a round works
Make it harder or easier
Harder
Go one-way — ban questions — and add a 30-word limit; require measured lengths and units.
Easier
Allow yes/no questions, agree on a shared base piece, and let the Builder peek once before the barrier goes up.
Reflect
Skills
Standards & alignment
TEKS 2021 Science TEKS · Strand 1: Scientific & Engineering Practices — engineering design & communicating information (confirm grade code)
NGSS NGSS SEP-8: Obtaining, Evaluating & Communicating Information · SEP-6: Constructing Explanations & Designing Solutions (ETS1)