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Skills available for Colorado third-grade math standards

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3.1 Number Sense, Properties, and Operations

3.3 Data Analysis, Statistics, and Probability

3.4 Shape, Dimension, and Geometric Relationships

  • 3.4.1 Geometric figures are described by their attributes

    • 3.4.1.a Reason with shapes and their attributes.

      • 3.4.1.a.i Explain that shapes in different categories may share attributes and that the shared attributes can define a larger category.

      • 3.4.1.a.ii Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole.

  • 3.4.2 Linear and area measurement are fundamentally different and require different units of measure

  • 3.4.3 Time and attributes of objects can be measured with appropriate tools

    • 3.4.3.a Solve problems involving measurement and estimation of intervals of time, liquid volumes, and masses of objects.

      • 3.4.3.a.i Tell and write time to the nearest minute.

      • 3.4.3.a.ii Measure time intervals in minutes.

      • 3.4.3.a.iii Solve word problems involving addition and subtraction of time intervals in minutes using a number line diagram.

      • 3.4.3.a.iv Measure and estimate liquid volumes and masses of objects using standard units of grams (g), kilograms (kg), and liters (l).

      • 3.4.3.a.v Use models to add, subtract, multiply, or divide to solve one-step word problems involving masses or volumes that are given in the same units.