Lesson 12.1 Describe Plane Shapes

Lesson 12.2 Describe Angles in Plane Shapes

Lesson 12.3 Identify Polygons

Lesson 12.4 Describe Sides of Polygons

Lesson 12.5 Classify Quadrilaterals

Lesson 12.6 Draw Quadrilaterals

Lesson 12.7 Describe Triangles

Lesson 12.8 Problem Solving • Classify Plane Shapes

Lesson 12.9 Relate Shapes, Fractions, and Area