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Fourth Grade | Numbers and Operations: Adding and Subtracting Fractions
Standard: CC.2.1.4.C.2, M04.A-F.2.1.1, M04.A-F.2.1.2, M04.A-F.2.1.3, M04.A-F.2.1.4, CC.2.1.4.C.3, M04.A-F.3.1.1
Build fractions from unit fractions by applying and extending previous understandings of operations on whole numbers
Add and subtract fractions with a common denominator (denominators limited to 2, 3, 4, 5, 6, 8, 10, 12, and 100; answers do not need to be simplified; and no improper fractions as the final answer).
Solve word problems involving addition and subtraction of fractions referring to the same whole or set and having like denominators (denominators limited to 2, 3, 4, 5, 6, 8, 10, 12, and 100).
Connect decimal notation to fractions, and compare decimal fractions (base 10 denominator, e.g, 19/100).
Add two fractions with respective denominators 10 and 100.
I can...
add fractions with a common denominator.
add two fractions with respective denominators 10 and 100.
subtract fractions with a common denominator.
decompose a fraction into a sum of fractions with the same denominator recording the decomposition by an equation.
justify decompositions by using a visual fraction model.
solve word problems involving addition and subtraction of fractions referring to the same whole or set and having like denominators.
LEARNING SCALE
With help, the student demonstrates partial success at 2.0 and 3.0.
I will perform basic processes, such as:
explain algorithms for adding or subtracting fractions
explain strategies for solving word problems involving fractions.
explain how to decompose fractions.
I can recognize or recall specific vocabulary, such as:
visual fraction model, denominator, decomposition.
I can:
Add fractions with a common denominator.
Add two fractions with respective denominators 10 and 100.
Subtract fractions with a common denominator.
Decompose a fraction into a sum of fractions with the same denominator recording the decomposition by an equation.
Justify decompositions by using a visual fraction model.
Solve word problems involving addition and subtraction of fractions referring to the same whole or set and having like denominators.
SUPPORTING RESOURCES
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