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Showing 31 - 40 of 172 Standards

Standard Identifier: 2.OA.1

Grade: 2
Domain: Operations and Algebraic Thinking

Cluster:
Represent and solve problems involving addition and subtraction.

Standard:
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.

Footnote:
See Glossary, Table 1.

Standard Identifier: 2.OA.2

Grade: 2
Domain: Operations and Algebraic Thinking

Cluster:
Add and subtract within 20.

Standard:
Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.

Footnote:
See standard 1.OA.6 for a list of mental strategies.

Standard Identifier: 2.OA.3

Grade: 2
Domain: Operations and Algebraic Thinking

Cluster:
Work with equal groups of objects to gain foundations for multiplication.

Standard:
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.

Standard Identifier: 2.OA.4

Grade: 2
Domain: Operations and Algebraic Thinking

Cluster:
Work with equal groups of objects to gain foundations for multiplication.

Standard:
Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.

Standard Identifier: 3.MD.1

Grade: 3
Domain: Measurement and Data

Cluster:
Solve problems involving measurement and estimation of intervals of time, liquid volumes, and masses of objects.

Standard:
Tell and write time to the nearest minute and measure time intervals in minutes. Solve word problems involving addition and subtraction of time intervals in minutes, e.g., by representing the problem on a number line diagram.

Standard Identifier: 3.MD.2

Grade: 3
Domain: Measurement and Data

Cluster:
Solve problems involving measurement and estimation of intervals of time, liquid volumes, and masses of objects.

Standard:
Measure and estimate liquid volumes and masses of objects using standard units of grams (g), kilograms (kg), and liters (l). Add, subtract, multiply, or divide to solve one-step word problems involving masses or volumes that are given in the same units, e.g., by using drawings (such as a beaker with a measurement scale) to represent the problem.

Footnote:
Excludes compound units such as cm^3 and finding the geometric volume of a container. Excludes multiplicative comparison problems (problems involving notions of “times as much”; see Glossary, Table 2).

Standard Identifier: 3.MD.3

Grade: 3
Domain: Measurement and Data

Cluster:
Represent and interpret data.

Standard:
Draw a scaled picture graph and a scaled bar graph to represent a data set with several categories. Solve one- and two-step “how many more” and “how many less” problems using information presented in scaled bar graphs. For example, draw a bar graph in which each square in the bar graph might represent 5 pets.

Standard Identifier: 3.MD.4

Grade: 3
Domain: Measurement and Data

Cluster:
Represent and interpret data.

Standard:
Generate measurement data by measuring lengths using rulers marked with halves and fourths of an inch. Show the data by making a line plot, where the horizontal scale is marked off in appropriate units—whole numbers, halves, or quarters.

Standard Identifier: 3.MD.5.a

Grade: 3
Domain: Measurement and Data

Cluster:
Geometric measurement: understand concepts of area and relate area to multiplication and to addition.

Standard:
Recognize area as an attribute of plane figures and understand concepts of area measurement. A square with side length 1 unit, called “a unit square,” is said to have “one square unit” of area, and can be used to measure area.

Standard Identifier: 3.MD.5.b

Grade: 3
Domain: Measurement and Data

Cluster:
Geometric measurement: understand concepts of area and relate area to multiplication and to addition.

Standard:
Recognize area as an attribute of plane figures and understand concepts of area measurement. A plane figure which can be covered without gaps or overlaps by n unit squares is said to have an area of n square units.

Showing 31 - 40 of 172 Standards


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