Explain why a fraction a/b is equivalent to a fraction | Explain why a fraction a/b is equivalent to a fraction ((n·a))/((n·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.1 |
Compare two fractions with different numerators and different denominators | Compare two fractions with different numerators and different denominators, (e.g. by creating common numerators or denominators, or by comparing to a benchmark fraction such as ½.) Recognize that comparisons are valid only when the two fractions refer to the same whole. Record the results of comparisons with relational symbols >, <, =, or ≠, and justify the conclusions, (e.g. by using visual fraction models.). | 4.NF.2 |
Understand a fraction a/b with a > 1 as a sum of fractions 1/b | Understand a fraction a/b with a > 1 as a sum of fractions 1/b. | 4.NF.3 |
Understand addition and subtraction of fractions as joining and separating… | Understand addition and subtraction of fractions as joining and separating parts referring to the same whole. | 4.NF.3.a |
Decompose a fraction into a sum of fractions with the same denominator in more… | Decompose a fraction into a sum of fractions with the same denominator in more than one way, recording each decomposition by an equation. Justify decompositions, e.g. by using a visual fraction model. | 4.NF.3.b |
Add and subtract mixed numbers with like denominators, e.g | Add and subtract mixed numbers with like denominators, e.g. by replacing each mixed number with an equivalent fraction (simplest form is not an expectation), and/or by using properties of operations and the relationship between addition and subtraction. | 4.NF.3.c |
Solve word problems involving addition and subtraction of fractions referring… | 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.3.d |
Apply and extend previous understandings of multiplication to multiply a… | Apply and extend previous understandings of multiplication to multiply a fraction by a whole number. | 4.NF.4 |
Understand a fraction a/b as a multiple of 1/b | Understand a fraction a/b as a multiple of 1/b. | 4.NF.4.a |
Understand a multiple of a/b as a multiple of 1/b | Understand a multiple of a/b as a multiple of 1/b, and use this understanding to multiply a fraction by a whole number. | 4.NF.4.b |
Solve word problems involving multiplication of a fraction by a whole number | Solve word problems involving multiplication of a fraction by a whole number. | 4.NF.4.c |
Express a fraction with denominator 10 as an equivalent fraction with… | Express a fraction with denominator 10 as an equivalent fraction with denominator 100, and use this technique to add two fractions with respective denominators 10 and 100. | 4.NF.5 |
Use decimal notation for fractions with denominators 10 or 100 | Use decimal notation for fractions with denominators 10 or 100. | 4.NF.6 |
Compare two decimals to hundredths by reasoning about their size | Compare two decimals to hundredths by reasoning about their size. Recognize that comparisons are valid only when the two decimals refer to the same whole. Record the results of comparisons with the relational symbols >, < =, or ≠, and justify the conclusions, (e.g. by using a visual model.). | 4.NF.7 |