South Carolina Standards

South Carolina 3rd grade math standards

Every 3rd grade math standard in the 2025 South Carolina College- and Career-Ready Standards for Mathematics, in South Carolina's order, with the Lux lessons that teach it.

Measurement and Data

3.MGSR.2.2
Use analog and digital clocks to tell and record time to 1-minute intervals, identifying AM and PM.
Taught inTelling time to the minute Where the hour hand sits Elapsed time on a number line Time is not base ten
3.MGSR.3.1
Describe and draw right, acute, obtuse, and straight angles. Identify these angle types in two-dimensional figures including triangles and quadrilaterals.
Taught inFive kinds of angles Points, lines, segments, rays Parallel and perpendicular Crossing is not perpendicular
3.DPSR.1.1
Collect and organize categorical and numerical data based on observations, surveys, experiments, and investigations with whole number values using tables, scaled picture graphs, scaled bar graphs, or dot plots.
Taught inScaled pictographs and bar graphs Line plots Read the key Questions from graphsand 1 more
3.MGSR.2.4
Estimate and measure length/distance to the nearest half inch and nearest whole centimeter.
Taught inLine plots Measuring to the quarter inch Measuring with a ruler Start at zeroand 6 more
3.MGSR.2.1
Determine the value of any collection of coins, not to exceed 5.
Taught inBigger coin, not bigger value Counting coins Money word problems Making change
3.DPSR.2.1
Identify the possible outcomes of a simple event.
Taught inPossible outcomes
3.MGSR.1.1
Determine the area of squares and rectangles presented in relevant problems by covering the space with square units and counting the total number of units needed.
Taught inArea by counting squares
3.MGSR.2.5
Determine which unit of liquid volume is most appropriate to measure in real-world situations.
Taught inLine plots Measuring to the quarter inch Reading a scale Measurement word problemsand 3 more
3.DPSR.1.2
Solve one-step, real-world situations using whole number data represented in tables, scaled picture graphs, scaled bar graphs, or dot plots.
Taught inScaled pictographs and bar graphs Read the key Questions from graphs
3.MGSR.1.2
Determine the perimeter of regular and irregular triangles and quadrilaterals with known side lengths.
Taught inPerimeter around the edge Same area, different perimeters The cut is not perimeter Area or perimeter?and 3 more
3.MGSR.1.3
Determine if a real-world situation is an example of the need for finding the area or the perimeter of a figure.
Taught inPerimeter around the edge Same area, different perimeters The cut is not perimeter Area or perimeter?
3.MGSR.2.3
Solve problems involving addition and subtraction of time intervals to determine elapsed time to the nearest half hour.
Taught inTelling time to the minute Where the hour hand sits Elapsed time on a number line Time is not base ten

Operations and Algebraic Thinking

3.PAFR.2.1
Determine the unknown whole number in a multiplication or division real-world situation relating three whole numbers when the unknown is a missing factor, product, dividend, divisor, or quotient.
Taught inThe unknown anywhere
3.PAFR.2.3
Identify, create, and extend numerical patterns to determine the next three terms in an addition or subtraction sequence.
Taught inPatterns from a rule Position is not value
3.PAFR.1.3
Multiply two whole numbers from 0 to 10 and divide using related facts flexibly and accurately.
Taught inOne array, four facts Facts from facts you know One digit times two digits Equal jumps on a number lineand 4 more
3.PAFR.2.4
Recognize that a whole number is a multiple of each of its factors 1–10.
Taught inIs it a multiple?A number is its own multiple Factor pairs with arrays Prime or composite?and 1 more
3.PAFR.1.2
Multiply whole numbers (factors 0–10) and divide whole numbers (divisors 1–10) using a model and write a corresponding equation.
Taught inEqual groups and arrays Groups or how many in each?Two kinds of division

Geometry

3.MGSR.3.2
Identify, describe, and draw points, lines, line segments, rays, intersecting lines, perpendicular lines, and parallel lines. Identify these in two-dimensional figures.
Taught inPoints, lines, segments, rays Parallel and perpendicular Crossing is not perpendicular

Number and Operations in Base Ten

3.NR.1.2
Compose and decompose 4-digit whole numbers in multiple ways using thousands, hundreds, tens, and ones.
Taught inMany names for one number
3.PAFR.1.1
Use a strategy to compute sums and differences up to 1,000.
Taught inEstimate first Adding with regrouping Subtracting with regrouping Subtracting across zeros
3.NR.1.3
Compare two whole numbers up to 999,999 based on the place value of the digits using the symbols for is equal to (=), is less than (<), or is greater than (>).
Taught inBig numbers three ways The zeros you don’t hear Renaming numbers Comparing big numbersand 1 more
3.NR.1.4
Round whole numbers from 0 to 1,000 to the nearest 10 or 100.
Taught inRounding: closer to which?Round at the right place
3.PAFR.2.2
Solve one- and two-step real-world situations using addition and subtraction up to 1,000.
Taught inEstimate first Adding with regrouping Subtracting with regrouping Subtracting across zerosand 2 more
3.NR.1.1
Read, write, and represent whole numbers through the thousands period (0 to 999,999) on a number line and in standard, base ten language, word, and equations in expanded form.
Taught inBig numbers three ways The zeros you don’t hear Renaming numbers Comparing big numbersand 1 more

Number and Operations—Fractions

3.NR.2.2
Represent fractions from 0 to 1 using concrete, set, area, and linear models, and write them in standard form and word form.
Taught inOne part of equal parts Equal parts only More parts, smaller pieces Counting unit fractionsand 3 more
3.NR.2.3
Express whole numbers as fractions and identify fractions that are equivalent to whole numbers.
Taught inCounting unit fractions Equal fractions, one point Is it really equal?
3.NR.2.4
Compose fractions between the whole numbers 0 and 5 using unit fractions. Record the composition as a mixed number or fraction greater than 1.
Taught inOne part of equal parts Equal parts only More parts, smaller pieces Counting unit fractionsand 9 more
3.NR.2.1
Identify unit fractions as the quantity formed by one part when a whole is partitioned into 2, 3, 4, 6, or 8 equal-sized parts. Express each part as a unit fraction of the whole.
Taught inOne part of equal parts Equal parts only More parts, smaller pieces Counting unit fractionsand 2 more
3.NR.2.6
Compare two fractions with the same numerator or same denominator based on the same size whole by reasoning about their size.
Taught inMore parts, smaller pieces Fractions on a number line Same bottom or same top Bigger bottom, smaller pieceand 1 more
3.NR.2.5
Recognize two fractions are equivalent based on the same size whole.
Taught inMore parts, smaller pieces Counting unit fractions Same bottom or same top Bigger bottom, smaller pieceand 3 more

All South Carolina grades

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