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주요 내용

STANDARDS

Math

Common Core Math

Grade 3: Geometry

3.G.A

Reason with shapes and their attributes.

3.G.A.1

Fully covered
Understand that shapes in different categories (e.g., rhombuses, rectangles, and others) may share attributes (e.g., having four sides), and that the shared attributes can define a larger category (e.g., quadrilaterals). Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, and draw examples of quadrilaterals that do not belong to any of these subcategories.

3.G.A.2

Fully covered
Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole..