Maryland College and Career-Ready Standards
MD.MA.2.G. Geometry (G)
2.G.A. Reason with shapes and their attributes.
2.G.A.2. Additional Standard: Partition a rectangle into rows and columns of same-size squares and count to find the total number of them.
2.G.A.2.1. Ability to partition rectangles into rows and columns of same-size squares lays the foundation for the development of multiplication, area, and fractions.
2.G.A.2.2. Ability to use concrete materials (e.g., color tiles and cubes) to partition a rectangle.
2.G.A.3. Additional Standard: 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.
2.G.A.3.1. Ability to partition circles and rectangles into equal parts lays the foundation for the development of fractions.