Grade 2

    2.OA. Grade 2 - Operations and Algebraic Thinking

      2.OA.A. Represent and solve problems involving addition and subtraction.

        2.OA.A.1. Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.See Glossary, Table 1.

      2.OA.B. Add and subtract within 20.

      2.OA.C. Work with equal groups of objects to gain foundations for multiplication.

        2.OA.C.3. Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.

    2.MD. Grade 2 - Measurement and Data

      2.MD.A. Measure and estimate lengths in standard units.

        2.MD.A.1. Measure the length of an object by selecting and using appropriate tools such as rulers, yardsticks, meter sticks, and measuring tapes.

        2.MD.A.2. Measure the length of an object twice, using length units of different lengths for the two measurements; describe how the two measurements relate to the size of the unit chosen.

        • No tasks yet illustrate this standard.

        2.MD.A.3. Estimate lengths using units of inches, feet, centimeters, and meters.

        2.MD.A.4. Measure to determine how much longer one object is than another, expressing the length difference in terms of a standard length unit.

      2.MD.B. Relate addition and subtraction to length.

        2.MD.B.5. Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units, e.g., by using drawings (such as drawings of rulers) and equations with a symbol for the unknown number to represent the problem.

        2.MD.B.6. Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2, …, and represent whole-number sums and differences within 100 on a number line diagram.

      2.MD.D. Represent and interpret data.

        2.MD.D.9. Generate measurement data by measuring lengths of several objects to the nearest whole unit, or by making repeated measurements of the same object. Show the measurements by making a line plot, where the horizontal scale is marked off in whole-number units.

        2.MD.D.10. Draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories. Solve simple put-together, take-apart, and compare problemsSee Glossary, Table 1. using information presented in a bar graph.

    2.G. Grade 2 - Geometry

      2.G.A. Reason with shapes and their attributes.

        2.G.A.1. Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces.Sizes are compared directly or visually, not compared by measuring. Identify triangles, quadrilaterals, pentagons, hexagons, and cubes.

        2.G.A.3. Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.