Topic B: Attributes of two-dimensional figures

Topic B includes lessons 4-9. "Compare and classify quadrilaterals. Compare and classify other polygons. Draw polygons with specified attributes to solve problems. Reason about composing and decomposing polygons using tetrominoes. Create a tangram puzzle and observe relationships among the shapes. Reason about composing and decomposing polygons using tangrams." Eureka Math/EngageNY (c) 2015 GreatM