Part-Whole Fraction Reasoning
A fraction names equal parts of a whole that equals one; from a part you can find the whole, the remaining fraction, or a fraction of a number. Learners partition equally, see a fraction as a count of unit fractions, and recover the whole from a given part. This part-whole model is the foundation of all fraction operations.
grade 3 GNFOA Draw a DiagramCreate a Physical Representation
Progression (5)
3-1 1. A fraction is a count of unit fractions 4.NF.B.33.NF.A.1
3-1 2. Fractions require equal partitioning of the whole 3.NF.A.13.G.A.2
3-1 3. The whole is one; find the remaining fraction 3.NF.A.13.NF.A.3
3-2 4. Recover the whole from a fractional part 3.NF.A.13.OA.A.4
3-2 5. Split a whole into proper-fraction portions 3.NF.A.13.OA.A.2