Clarifications:
Essential Understandings
Concrete:
- Recognize that perimeter can be determined by tiling the sides of a rectangle with square tiles with no gaps or overlaps.
- Count the number of tiles on each side.
- Add sides together to determine the perimeter.
- Use addition to identify the perimeter of a figure.
- Understand the vocabulary and concepts of perimeter, sides, addition, +, gaps, and overlaps.
| Number: MAFS.3.MD.4.AP.8a | Category: Access Points |
| Date Adopted or Revised: 06/14 |
Cluster:
Geometric measurement: recognize perimeter as an attribute of plane figures and distinguish between linear and area measures. (Additional 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. |