Use tiling and addition to determine area.
Clarifications:
Essential Understandings
Concrete:
- Count up to 20 objects (students are expected to multiply within 20, refer to MAFS.3.OA.3.AP.7a).
- Use square tiles to cover a rectangle.
- Count the number of tiles in each row and use repeated addition to determine the area of the rectangle.
- Identify the number of unit squares used to find the area of a rectangular figure.
- Use repeated addition to find the area of a rectangle when given a picture or array.
- Understand the vocabulary and concepts of area, addition, repeated addition, +.
General Information
Number: MAFS.3.MD.3.AP.7a
Category: Access Points
Date Adopted or Revised:
06/14
Cluster:
Geometric measurement: understand concepts of area and relate area to multiplication and to addition. (Major Cluster) :
Clusters should not be sorted from Major to Supporting and then taught in that order. To do so would strip the coherence of the mathematical ideas and miss the opportunity to enhance the major work of the grade with the supporting clusters.
Related Standards
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