Mathematics (2019) Grade(s): 2

MA19.2.27

Partition circles and rectangles into two, three, or four equal shares. Describe the shares using such terms as halves, thirds, half of, or a third of, and describe the whole as two halves, three thirds, or four fourths.

Unpacked Content

Knowledge

Students know:
  • strategies for partitioning shapes into two, three, or four equal shares and reason about these shares.

Skills

Students are able to:
  • decompose circles and rectangles into halves, thirds, and fourths.
  • communicate the size of pieces using the appropriate fraction terminology.
  • recognize that equal shares may be different shapes within the same whole.

Understanding

Students understand that:
  • shapes can be equally partitioned into halves, thirds, and fourths.

Vocabulary

  • Partition
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