CCSS.Math.Content.3.G.A Reason with shapes and their attributes.

• CCSS.Math.Content.3.G.A.1
  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.
• CCSS.Math.Content.3.G.A.2
  Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole.