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Mathematics Standards




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Showing 41 - 50 of 173 Standards

Standard Identifier: 4.MD.5.a

Grade: 4
Domain: Measurement and Data

Cluster:
Geometric measurement: understand concepts of angle and measure angles.

Standard:
Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement: An angle is measured with reference to a circle with its center at the common endpoint of the rays, by considering the fraction of the circular arc between the points where the two rays intersect the circle. An angle that turns through 1/360 of a circle is called a “one-degree angle,” and can be used to measure angles.

Standard Identifier: 4.MD.5.b

Grade: 4
Domain: Measurement and Data

Cluster:
Geometric measurement: understand concepts of angle and measure angles.

Standard:
Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement: An angle that turns through n one-degree angles is said to have an angle measure of n degrees.

Standard Identifier: 4.MD.6

Grade: 4
Domain: Measurement and Data

Cluster:
Geometric measurement: understand concepts of angle and measure angles.

Standard:
Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure.

Standard Identifier: 4.MD.7

Grade: 4
Domain: Measurement and Data

Cluster:
Geometric measurement: understand concepts of angle and measure angles.

Standard:
Recognize angle measure as additive. When an angle is decomposed into non-overlapping parts, the angle measure of the whole is the sum of the angle measures of the parts. Solve addition and subtraction problems to find unknown angles on a diagram in real-world and mathematical problems, e.g., by using an equation with a symbol for the unknown angle measure.

Standard Identifier: 4.NF.1

Grade: 4
Domain: Number and Operations—Fractions

Cluster:
Extend understanding of fraction equivalence and ordering.

Standard:
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.

Footnote:
Grade 4 expectations in this domain are limited to fractions with denominators 2, 3, 4, 5, 6, 8, 10, 12, and 100.

Standard Identifier: 4.NF.2

Grade: 4
Domain: Number and Operations—Fractions

Cluster:
Extend understanding of fraction equivalence and ordering.

Standard:
Compare two fractions with different numerators and different denominators, e.g., by creating common denominators or numerators, or by comparing to a benchmark fraction such as 1/2. Recognize that comparisons are valid only when the two fractions refer to the same whole. Record the results of comparisons with symbols >, =, or <, and justify the conclusions, e.g., by using a visual fraction model.

Standard Identifier: 4.NF.3.a

Grade: 4
Domain: Number and Operations—Fractions

Cluster:
Build fractions from unit fractions by applying and extending previous understandings of operations on whole numbers.

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.

Standard Identifier: 4.NF.3.b

Grade: 4
Domain: Number and Operations—Fractions

Cluster:
Build fractions from unit fractions by applying and extending previous understandings of operations on whole numbers.

Standard:
Understand a fraction a/b with a > 1 as a sum of fractions 1/b. 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. Examples: 3/8 = 1/8 + 1/8 + 1/8 ; 3/8 = 1/8 + 2/8 ; 2 1/8 = 1 + 1 + 1/8 = 8/8 + 8/8 + 1/8.

Standard Identifier: 4.NF.3.c

Grade: 4
Domain: Number and Operations—Fractions

Cluster:
Build fractions from unit fractions by applying and extending previous understandings of operations on whole numbers.

Standard:
Understand a fraction a/b with a > 1 as a sum of fractions 1/b. Add and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction.

Standard Identifier: 4.NF.3.d

Grade: 4
Domain: Number and Operations—Fractions

Cluster:
Build fractions from unit fractions by applying and extending previous understandings of operations on whole numbers.

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.

Showing 41 - 50 of 173 Standards


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