Build representations of numbers up to 31 by creating a group of 10 and some ones(e.g., 13 = one 10 and three 1s).
Clarifications:
Essential Understandings
Concrete:
- Using ten frames, create bundles of 10 manipulatives (up to 3 bundles) to represent tens.
- Using manipulatives count on from a 10 frame to represent the further ones (Ex: 10 up to 19, or 20 up to 29, or 30 up to 31).
- Recognize a set of 10 as 10 without counting (Ex: a base ten block represents 10 ones, a ten frame represents 10 ones).
- Identify a visual representation of a number using 10 and one blocks.
- Using visuals, count on from a 10 frame to represent the further ones (Ex: 10 up to 19, or 20 up to 29, or 30 up to 31).
| Number: MAFS.1.NBT.2.AP.2a | Category: Access Points |
| Date Adopted or Revised: 06/14 |
Cluster:
Understand place value. (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. |