Activity 70 · Mathematics
Polygon Builder

Materials Craft sticks or geoboards.
What to describe
The Describer sees a polygon and explains how many sides, vertices, equal lengths, or right angles it has. The Builder recreates it.
Roles
How a round works
Make it harder or easier
Harder
Require coordinates, units, and exact quantities; describe in one uninterrupted turn with no questions.
Easier
Allow yes/no questions and provide a labeled grid or number line as a shared reference.
Reflect
Skills
Standards & alignment
TEKS Math TEKS · geometry, spatial reasoning & precise mathematical communication (confirm grade code)
NGSS NGSS SEP-8: Obtaining, Evaluating & Communicating Information · SEP-2: Developing & Using Models