3rd

Operations and Algebraic Thinking

Number and Operations in Base Ten

Number and Operations—Fractions

Measurement and Data

Geometry

Use repeated addition to find the total number of objects and determine the sum.

Solve addition and subtraction problems when result is unknown, limited to operands and results within 20.

Solve one-step real-world problems using addition or subtraction within 20.

Identify arithmetic patterns.

Use decade numbers (10, 20, 30) as benchmarks to demonstrate understanding of place value for numbers 0–30.

Demonstrate understanding of place value to tens.

Count by tens using models such as objects, base ten blocks, or money.

Differentiate a fractional part from a whole.

Tell time to the hour on a digital clock.

Identify the appropriate measurement tool to solve one-step word problems involving mass and volume.

Use picture or bar graph data to answer questions about data.

Measure length of objects using standard tools, such as rulers, yardsticks, and meter sticks.

Describe attributes of two-dimensional shapes.

Recognize that shapes can be partitioned into equal areas.