CCSS.Math.Content.2.G.A Reason with shapes and their attributes.

• CCSS.Math.Content.2.G.A.1
  Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces. Identify triangles, quadrilaterals, pentagons, hexagons, and cubes.
• CCSS.Math.Content.2.G.A.2
  Partition a rectangle into rows and columns of same-size squares and count to find the total number of them.
• CCSS.Math.Content.2.G.A.3
  Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.