3-5: Educator Resources

Spotlight Resource: Polygon Properties Puzzles Vignette

This 4th-grade vignette brings the California Math Framework to life through an inquiry-based lesson where students explore and apply attributes of polygons. Using digital whiteboards and the routine Convince Yourself, a Friend, a Skeptic, students draw figures that meet specific criteria, justify their reasoning, and refine their mathematical language through peer discussion. The lesson centers on collaborative problem-solving, visual modeling, and rich academic talk — all while deepening understanding of angles, side lengths, and geometric properties. 

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