MA19.2.4

Mathematics (2019) Grade(s): 2

MA19.2.4

Using concrete and pictorial representations and repeated addition, determine the total number of objects in a rectangular array with up to 5 rows and up to 5 columns.

Unpacked Content

Knowledge

Students know:
  • how to use arrays and repeated addition as multiplication strategies.

Skills

Students are able to:
  • represent the total number of objects in a rectangular array as the sum of repeated addition.
  • choose and apply addition strategies to accurately compute sums for multiple addend problems.

Understanding

Students understand that:
  • repeated addition determines the total number of items in a rectangular array.

Vocabulary

  • Rectangular array
  • Rows
  • Columns

Aligned Learning Resources

Roll an Array
Foundation of Multiplication and Division
Array We Go!
Arrays in the Real World
Rectangular Arrays
Problem Solving with Arrays
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