Unit Plan

Two-Dimensional Figures


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Big Ideas




Students will learn about the classification, properties, and formulas regarding two-dimensional geometric figures. They will:

  • examine properties of triangles and other polygons.

  • develop rules representing angle measures in polygons.

  • study perimeter and area.

  • use area in probability situations.

Essential Questions

  • What characteristics of triangles and other polygons can guide us in making useful generalizations about plane geometry and how do those generalizations give us tools to solve real-world problems?

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