**Maryland College and Career-Ready Education Standards**. A number line is a line that shows any group of numbers in their least to greatest value. Read More...

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MD.MA.4.NF. Number and Operations – Fractions (NF) (limited to fractions with denominators 2, 3, 4, 5, 6, 8, 10, 12, and 100)

4.NF.A. Extend understanding of fraction equivalence and ordering.

4.NF.A.1. Major Standard: Explain why a fraction a/b is equivalent to a fraction (n x a)/(n x b) by using visual fraction models, with attention to how the number and size of the parts differ even though the two fractions themselves are the same size. Use this principle to recognize and generate equivalent fractions.

4.NF.A.1.1. Ability to use concrete materials to model fraction number concepts and values.

4.NF.B. Build fractions from unit fractions by applying and extending previous understandings of operations on whole numbers.

4.NF.B.3a. Major Standard: Understand a fraction a/b with a>1 as a sum of fractions 1/b – Understand addition and subtraction of fractions as joining and separating parts referring to the same whole.

4.NF.B.3a.2. Knowledge that the numerator tells how many parts of the whole we are counting and the denominator tells how many total parts there are in all.

4.NF.B.3a.3. Knowledge that when counting parts of a whole, the numerator consecutively changes, the denominator stays the same.

4.NF.B.3a.5. Ability to represent the addition and subtraction of fractions using concrete materials, pictures, numbers, and words.

4.NF.B.3d. Major Standard: Understand a fraction a/b with a>1 as a sum of fractions 1/b – Solve word problems involving addition and subtraction of fractions referring to the same whole and having like denominators, e.g., by using visual fraction models and equations to represent the problem.

4.NF.B.3d.1. Ability to apply the understanding that the numerator tells us how many parts of the whole we are counting and the denominator tells us how many total parts there are in the whole.

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