Measurement and Geometry
Virginia SOL 3.MG.4
Identify, describe, classify, compare, combine, and subdivide polygons.
What students need to be able to do
- Describe a polygon as a closed plane figure composed of at least three line segments that do not cross.
- Classify figures as polygons or not polygons and justify reasoning.
- Identify and describe triangles, quadrilaterals, pentagons, hexagons, and octagons in various orientations.
- Identify and name examples of polygons in the environment.
- Classify and compare polygons (triangles, quadrilaterals, pentagons, hexagons, octagons).
- Combine no more than three polygons (each with three or four sides) and name the resulting polygon.
- Subdivide a three-sided or four-sided polygon into no more than three parts and name the resulting polygons.