Clarifications:
Essential Understandings
Concrete:
- Decompose a base ten rod into ‘ones’ blocks to use ones in a subtraction situation.
- Decompose a base ten hundred flat into ‘tens’ rods to use tens in a subtraction situation.
- Use base ten hundreds flats in a subtraction situation.
- Decompose a visual representation of base ten rod into ‘ones’ blocks to use ones in a subtraction situation.
- Decompose a visual representation of base ten hundred flat into ‘tens’ rods to use tens in a subtraction situation.
- Use a visual representation of base ten hundreds flats in a subtraction situation.
| Number: MAFS.2.NBT.2.AP.7a | Category: Access Points |
| Date Adopted or Revised: 06/14 |
Cluster:
Use place value understanding and properties of operations to add and subtract. (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. |