Clarifications:
Essential Understandings
Concrete:
- Place fraction manipulatives in groups as indicated by the whole number in a given multiplication expression (e.g., 2 × 1/3 = 2 groups of 1/3 or 3 × 1/4 = 3 groups of 1/4).
- Use repeated addition/skip counting to find the product (e.g., 1/3 + 1/3 = 2/3 or 1/4 + 1/4 + 1/4 = 3/4).
- Use a visual representation of a whole divided into equal pieces (each piece may be labeled with the corresponding unit fraction). Shade the number of groups of the fraction (e.g., 3 groups of 1/5 ) as indicated by the whole number.
- Use repeated addition/skip counting to find the product (e.g., 1/5 + 1/5 +1/5 = 3/5).
- Understand the following vocabulary: numerator, denominator.
| Number: MAFS.4.NF.2.AP.4a | Category: Access Points |
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Cluster:
Build fractions from unit fractions by applying and extending previous understandings of operations on whole numbers. (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. |