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**Grade 1 – Working With Numbers**

- Understand and use:
- whole numbers to 50 (i.e., 0, 1, 2, 3,… 50)
- anchors of 5 and 10
- fractions, as follows: divide whole objects into equal-sized parts and identify the parts as unit fractions, e.g., ½, ⅓, ¼, using various models, such as an area model, number line model, volume model, set model

– Focusing on the Fundamentals of Math – A Teacher’s Guide, p.5

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