Skip to content

What does a student learn in ?

This is the year math stretches into bigger numbers and smaller pieces at the same time. Students work with numbers up to the hundred-thousands, multiply and divide larger numbers, and start treating fractions and decimals as real quantities they can compare, add, and subtract. They also measure angles, find the area and perimeter of shapes, and solve problems involving elapsed time. By spring, students can multiply a four-digit number by a one-digit number and add fractions with the same bottom number.

Illustration of what students learn in Grade 4 Mathematics
  • Place value
  • Multiplication and division
  • Fractions
  • Decimals
  • Angles
  • Area and perimeter
  • Elapsed time
Source: Georgia Georgia Standards of Excellence
Year at a glance
How the year usually goes. Every school and district set their own curriculum, so treat this as a guide, not official pacing.
  1. 1

    Place value to the hundred-thousands

    Students read, write, and compare numbers up to the hundred-thousands place. They round bigger numbers and notice that each place is worth ten times the one to its right.

  2. 2

    Adding, subtracting, and multiplying bigger numbers

    Students add and subtract numbers in the thousands with confidence. They start multiplying numbers up to four digits by a one-digit number, and two-digit numbers by two-digit numbers, using place value and area models.

  3. 3

    Division, factors, and patterns

    Students divide larger numbers by a one-digit number, including problems with remainders. They find factor pairs, sort numbers into prime and composite, and follow rules to extend number and shape patterns.

  4. 4

    Fractions and equivalent fractions

    Students use drawings and number lines to see when two fractions are equal. They compare fractions, break them into smaller pieces, and add and subtract fractions that share the same bottom number.

  5. 5

    Decimals, money, and measurement

    Students connect fractions with tenths and hundredths to decimals and money. They solve problems with length, mass, liquid volume, and elapsed time to the minute, and show data on dot plots.

  6. 6

    Angles, shapes, and area

    Students measure angles with a protractor and sort shapes by their sides, angles, and lines of symmetry. They find the area and perimeter of rectangles, including shapes made by joining rectangles together.

Mastery Learning Standards
The required skills a student should display by the end of Grade 4.
Mathematical Practices
  • Display perseverance and patience in problem-solving

    4.MP

    Students keep trying when a math problem gets hard, ask for help when they're stuck, and listen to feedback. They work with others, explain their thinking, and track their own progress.

  • Make sense of problems and persevere in solving them

    4.MP.1

    Students read a math problem carefully, figure out what it's actually asking, and keep trying even when the first approach doesn't work.

  • Reason abstractly and quantitatively

    4.MP.2

    Students take a real-world problem, translate it into numbers and equations to solve it, then explain what the answer actually means in the original situation.

  • Construct viable arguments and critique the reasoning of others

    4.MP.3

    Students back up their math answers with reasons and check whether a classmate's solution actually makes sense. This builds the habit of thinking through the "why," not just getting to the answer.

  • Model with mathematics

    4.MP.4

    Students use drawings, diagrams, or equations to show how a real-world situation works, like sketching equal groups to figure out a division problem. The model helps them see the math, not just calculate it.

  • Use appropriate tools strategically

    4.MP.5

    Students choose the right tool for the job, picking a ruler, a number line, or scratch paper based on what the problem actually needs. They know when a tool helps and when to work it out another way.

  • Attend to precision

    4.MP.6

    Students check their work carefully, use the right math words, and make sure their answers are exact, not just close enough.

  • Look for and make use of structure

    4.MP.7

    Students notice patterns and shortcuts hiding in a problem, like recognizing that a shape or calculation works the same way every time. Spotting those patterns helps students solve new problems faster and with less guessing.

  • Look for and express regularity in repeated reasoning

    4.MP.8

    Students notice when the same steps keep showing up in different problems and use that pattern as a shortcut. Spotting the shortcut is the skill.

Numerical Reasoning
  • Recognize patterns within the base ten place value system with quantities…

    4.NR.1

    Reading a number up to 900,000 and knowing which digit means hundreds, thousands, or tens of thousands. Students use that understanding to round numbers and compare decimals down to the hundredths place.

  • Read and write multi-digit whole numbers to the hundred-thousands place using…

    4.NR.1.1

    Students read and write numbers up to 999,999 in standard form and in expanded form, breaking each number into its hundreds, tens, and ones to show what each digit is worth.

  • Recognize and show that a digit in one place has a value ten times greater than…

    4.NR.1.2

    Each digit in a number is worth ten times more than the same digit one spot to its right. Moving a digit left multiplies its value; moving it right divides it.

  • Use place value reasoning to represent, compare

    4.NR.1.3

    Reading a number and deciding if it is greater than, less than, or equal to another is the core skill here. Students line up multi-digit numbers by place value and record the comparison using the symbols >, <, or =.

  • Use place value understanding to round multi-digit whole numbers

    4.NR.1.4

    Students use the place value of each digit to decide whether a number rounds up or down to the nearest ten, hundred, thousand, or beyond. This is the same skill used when estimating a price or a distance in everyday life.

  • Using part-whole strategies, solve problems involving addition and subtraction…

    4.NR.2

    Students add, subtract, multiply, and divide large whole numbers to solve real-world problems. The numbers can go up into the hundred thousands, and students use what they know about how numbers break apart to make the math work.

  • Fluently add and subtract multi-digit numbers to solve practical, mathematical…

    4.NR.2.1

    Adding and subtracting large numbers (up to 999,999) to solve real problems. Students use what they know about place value and number patterns to get the right answer with confidence.

  • Interpret, model, and solve problems involving multiplicative comparison

    4.NR.2.2

    Multiplicative comparison problems ask students to figure out how many times bigger or smaller one number is than another. Students read a word problem and decide whether to multiply or divide to find the answer.

  • Solve relevant problems involving multiplication of a number with up to four…

    4.NR.2.3

    Students multiply large numbers, like 4-digit by 1-digit or two 2-digit numbers, using place value and area models to show their work. The focus is on understanding why the math works, not just getting the answer.

  • Solve authentic division problems involving up to 4-digit dividends and 1-…

    4.NR.2.4

    Divide a large number (up to four digits) by a single digit and find the answer, including any amount left over. Students use what they know about place value and how multiplication and division are connected to work through real-world problems.

  • Solve multi-step problems using addition, subtraction, multiplication

    4.NR.2.5

    Students solve word problems that mix addition, subtraction, multiplication, and division across several steps. They also check whether their answer makes sense by estimating before or after they calculate.

  • Solve real-life problems involving addition, subtraction, equivalence

    4.NR.4

    Students add, subtract, and compare fractions using pictures and diagrams to solve real-world problems. The denominators stay simple: halves, thirds, fourths, fifths, sixths, eighths, tenths, twelfths, and hundredths.

  • Using concrete materials, drawings

    4.NR.4.1

    Students use drawings and number lines to show why two fractions with different numbers can mean the same amount. They also practice creating equivalent fractions by multiplying the top and bottom of a fraction by the same number.

  • Compare two fractions with the same numerator or the same denominator by…

    4.NR.4.2

    Students compare two fractions by thinking about the size of the pieces or the number of pieces, then explain why that comparison only makes sense when both fractions describe the same whole.

  • Compare two fractions with different numerators and/or different denominators…

    4.NR.4.3

    Students decide which of two fractions is larger by using number lines, fraction strips, or other visual tools. They also learn that comparing fractions only makes sense when both fractions come from the same whole.

  • Represent whole numbers and fractions as the sum of unit fractions

    4.NR.4.4

    Students break a fraction or whole number into equal-sized pieces and write it as a chain of unit fractions. For example, 3/4 becomes 1/4 + 1/4 + 1/4.

  • Represent a fraction as a sum of fractions with the same denominator in more…

    4.NR.4.5

    Students break a fraction into smaller same-denominator pieces and write it as an addition equation. For example, 3/4 can be written as 1/4 + 2/4 or as 1/4 + 1/4 + 1/4.

  • Add and subtract fractions and mixed numbers with like denominators using a…

    4.NR.4.6

    Students add and subtract fractions that share the same bottom number, working with both simple fractions and mixed numbers like 2 and 3/4. They use number lines, fraction strips, or drawings to show their work.

  • Solve real-life problems involving addition, equivalence, comparison of…

    4.NR.5

    Students add fractions and decimals in everyday problems, like splitting a dollar into dimes or pennies. They compare amounts using visual models to see which fraction or decimal is larger or smaller.

  • Demonstrate and explain the concept of equivalent fractions with denominators…

    4.NR.5.1

    Students show why 3/10 and 30/100 name the same amount, then add fractions like 3/10 and 17/100 by converting both to hundredths. Visual models such as fraction bars or grids support the work.

  • Represent, read, and write fractions with denominators of 10 or 100 using…

    4.NR.5.2

    Students practice writing the same amount two ways: as a fraction (like 37/100) and as a decimal (like 0.37). They use grids and drawings to show why both notations mean the same thing.

  • Compare two decimal numbers to the hundredths place by reasoning about their…

    4.NR.5.3

    Students look at two decimal numbers, such as 0.4 and 0.37, and decide which is larger or smaller. They write their answer using the symbols >, =, or < and explain how they know.

K-5 Learning Progressions
  • Whole numbers to 100,000

    4.LP1.1.1

    Students read, write, and compare whole numbers up to 100,000. They understand the value of each digit by its position, so 34,000 means three ten-thousands and four thousands, not just a string of digits.

  • Non-unit fractions with denominators of 2, 3, 4, 5, 6, 8, 10, 12

    4.LP1.1.2

    Students read and write fractions like 3/4 or 7/8, where the bottom number can be 2, 3, 4, 5, 6, 8, 10, 12, or 100. The top number tells how many pieces are counted, not just one.

  • Fractions with like denominators

    4.LP1.1.3

    Students add and subtract fractions that share the same bottom number, like 2/5 plus 1/5. The denominator stays the same; only the top number changes.

  • Decimal fractions (tenths and hundredths)

    4.LP1.1.4

    Students read and write decimal numbers like 0.3 or 0.47, connecting them to fractions with 10 or 100 in the denominator. They see how tenths and hundredths fit together on a number line or in a place-value chart.

  • Counting non-unit fractions

    4.LP1.2.1

    Students count fractions the way they count whole numbers, stepping up by the same piece each time. For example, they count one-fourth, two-fourths, three-fourths instead of starting over at one.

  • Magnitude of place value

    4.LP1.3.1

    Students compare the size of digits by their position in a number, understanding that moving one place to the left makes a value ten times larger.

  • Multi-digit whole numbers to 100,000

    4.LP1.3.2

    Students read, write, and compare whole numbers up to 100,000, including numbers like 47,382 or 99,999. They understand what each digit is worth based on its place in the number.

  • Round multi-digit whole numbers

    4.LP1.3.3

    Students round larger whole numbers to the nearest ten, hundred, or thousand. This shows up in everyday tasks like estimating a price, a distance, or a crowd size.

  • Fractions with

    4.LP1.3.4

    Reading and writing fractions where the bottom number is 10 or 100, then converting between the two so a fraction like 3/10 becomes 30/100.

  • denominators of 10 or 100

    4.LP1.3.5

    Students add fractions that have 10 or 100 in the bottom number, like combining 3/10 and 40/100. This builds the groundwork for decimal place value.

  • Multi-digit numbers

    4.LP1.4.1

    Students read, write, and compare numbers up to the millions, understanding that each place in a number is worth ten times the place to its right. Place value is the engine behind how big numbers work.

  • Fractions less than 1

    4.LP1.4.2

    Reading and writing fractions means understanding that a number like 3/4 shows 3 equal parts out of 4. Students work with fractions smaller than 1, where the top number is less than the bottom number.

  • Decimal fractions to hundredths place

    4.LP1.4.3

    Students read and write decimal numbers to the hundredths place, like 0.75 or 3.04. They understand that the digits after the decimal point represent tenths and hundredths of a whole.

  • Fluency with addition and subtraction with multi-digit whole numbers

    4.LP1.5.1

    Students add and subtract large whole numbers quickly and accurately, without counting on fingers or needing a calculator. This is the foundation for almost every math skill that comes next.

  • Within 100,000

    4.LP1.6.1

    Students read and write numbers up to 100,000, understanding what each digit's position means. A 4 in the thousands place means 4,000, not 4.

  • Fractions with like denominators

    4.LP1.6.2

    Students add and subtract fractions that share the same bottom number, like 1/4 + 2/4. The denominator stays the same; only the top numbers change.

  • Factors and multiples

    4.LP1.7.1

    Students find all the whole numbers that divide evenly into a given number (factors) and list the results of skip-counting by that number (multiples). For example, the factors of 12 are 1, 2, 3, 4, 6, and 12.

  • Prime and composite numbers

    4.LP1.7.2

    Students sort whole numbers by whether they can only be divided evenly by 1 and themselves (prime) or have other divisors too (composite). Think of it as checking whether a number of dots can be arranged into more than one rectangle.

  • Multiply by multi-digit whole numbers

    4.LP1.7.3

    Students multiply two- and three-digit numbers together, like finding the total cost of 24 items at $15 each. This builds on single-digit facts and extends them to larger, real-world calculations.

  • Divide by 1-digit divisors

    4.LP1.7.4

    Students split a larger number into equal groups using a single-digit number. They work toward dividing numbers like 96 or 144 by 4, 6, or 8 and finding how many land in each group.

  • Generate number and shape patterns that follow a rule

    4.LP2.1.1

    Students start with a rule, such as "add 5 each time," and build a sequence of numbers or shapes that follows it. They also look at a pattern someone else made and figure out the rule behind it.

  • Represent and describe patterns

    4.LP2.1.2

    Students find a number or shape pattern and explain the rule behind it, such as "add 3 each time" or "the shapes repeat every four steps."

  • Points, lines, line segments, rays, angles

    4.LP3.1.1

    Students identify and draw basic parts of geometry: a point, a line, a ray, an angle, and line segments that run parallel or meet at a right angle. These are the building blocks for understanding shapes.

  • Classify, compare, & contrast polygons based on presence or absence of parallel…

    4.LP3.1.2

    Students sort and compare shapes by looking at their sides and corners. They notice which shapes have sides that run parallel, which have square corners, and whether the sides are equal or unequal.

  • Area and perimeter of composite rectangles

    4.LP3.2.1

    Students find the total area or edge length of shapes made by combining two or more rectangles. They split the shape into pieces, calculate each part, then add the results together.

  • Angle measurement

    4.LP3.2.2

    Students measure angles by placing a protractor at the corner of a shape and reading the degrees. This builds toward understanding why a right angle reads 90 degrees and a straight line reads 180.

  • Measure liquid volume, distance

    4.LP4.1.1

    Students measure water, distance, and weight using metric units like liters, meters, and grams. This builds the foundation for science class, where metric measurement shows up constantly.

  • Use rulers to measure lengths to nearest ½, ¼ and 1/8 of an inch

    4.LP4.1.2

    Students measure objects with a ruler and read the result to the nearest half, quarter, or eighth of an inch. That level of precision is finer than "about 3 inches" but still within reach of a standard 12-inch ruler.

  • Analyze data using dot plots

    4.LP4.1.3

    Reading a dot plot where the number line is divided into fractions like halves, quarters, and eighths, students interpret what the data shows and answer questions about it.

  • Using money as a tool or manipulative to solve problems

    4.LP4.2.1

    Students use coins and bills to work through real math problems, practicing addition, subtraction, and place value with amounts they already recognize from everyday life.

  • Intervals of time

    4.LP4.3.1

    Students read and calculate time on a clock, including how many minutes have passed between two times or how long until a future time.

  • Elapsed time to the nearest minute

    4.LP4.3.2

    Students figure out how much time has passed between a start time and an end time, reading a clock to the nearest minute. They might calculate how long a movie ran or how many minutes are left before lunch.

Patterning & Algebraic Reasoning
  • Generate and analyze patterns, including those involving shapes, input/output…

    4.PAR.3

    Students create and study repeating patterns using shapes, numbers, and multiplication rules. They learn to spot what makes a number prime (only divisible by 1 and itself) or composite (divisible by more numbers).

  • Generate both number and shape patterns that follow a provided rule

    4.PAR.3.1

    Students follow a rule to build a sequence, such as "add 5 each time" or "rotate the shape one turn," then extend it by applying that same rule to find what comes next.

  • Use input-output rules, tables

    4.PAR.3.2

    Students follow a rule (like "multiply by 3") to fill in an input-output table, then use that pattern to answer questions or solve problems.

  • Find factor pairs in the range 1–100 and find multiples of single-digit numbers…

    4.PAR.3.3

    Students find all the whole numbers that divide evenly into a given number up to 100, and list the multiples of single-digit numbers. For example, the factor pairs of 12 are 1x12, 2x6, and 3x4.

  • Identify composite numbers and prime numbers and explain the relationship with…

    4.PAR.3.4

    Students sort whole numbers into two groups: those that can only be divided evenly by 1 and themselves (prime), and those with more divisors (composite). They use factor pairs to show why each number belongs where it does.

Measurement & Data Reasoning
  • Measure time and objects that exist in the world to solve real-life…

    4.MDR.6

    Students read clocks and measure real objects to solve everyday problems, then read bar graphs and line plots to answer questions about the data they see.

  • Use the four operations to solve problems involving elapsed time to the nearest…

    4.MDR.6.1

    Students use addition, subtraction, multiplication, and division to solve measurement problems: how much time has passed on a clock, how far something travels, how heavy an object is, and how much liquid a container holds. They also convert between larger and smaller units, like meters to centimeters.

  • Ask questions and answer them based on gathered information, observations

    4.MDR.6.2

    Students look at charts, graphs, or tables built from real data and use what they see to answer questions about everyday situations, like how long a trip takes or how much something costs.

  • Create dot plots to display a distribution of numerical

    4.MDR.6.3

    Students collect a set of measurements and plot each one as a dot above a number line to show how the data is spread out. This turns a list of numbers into a picture that makes patterns easier to spot.

Geometric & Spatial Reasoning
  • Investigate the concepts of angles and angle measurement to estimate and…

    4.GSR.7

    Students learn what an angle is and how to measure it in degrees. They practice estimating the size of an angle before checking it with a protractor.

  • Recognize angles as geometric shapes formed when two rays share a common…

    4.GSR.7.1

    Students learn that an angle is two straight lines meeting at a point. They practice drawing angles that are exactly 90 degrees (like the corner of a piece of paper), smaller than 90 degrees, and larger than 90 degrees.

  • Measure angles in reference to a circle with the center at the common endpoint…

    4.GSR.7.2

    Students learn that a full circle equals 360 degrees, then figure out an angle's size by dividing that circle or solving for a missing number. It connects shapes to division in a concrete way.

  • Identify and draw geometric objects, classify polygons based on properties

    4.GSR.8

    Students identify and draw shapes, sort polygons by their properties, and find the area and perimeter of rectangles. This covers naming sides and angles, grouping shapes by what makes them alike, and calculating how much space a rectangle covers or how far it is around the edge.

  • Explore, investigate

    4.GSR.8.1

    Students learn to recognize and draw the basic building blocks of geometry: points, lines, angles, and the relationships between lines. They then spot these features inside flat shapes.

  • Classify, compare, and contrast polygons based on lines of symmetry, the…

    4.GSR.8.2

    Students sort shapes by their properties: whether opposite sides run parallel, whether corners meet at a right angle, and whether folding the shape in half would line up both sides perfectly.

  • Solve problems involving area and perimeter of composite rectangles involving…

    4.GSR.8.3

    Students find the total area or perimeter of shapes made by joining two or more rectangles together, using whole-number side lengths.

Assessments
The state tests students at this grade and subject take.
State Summative

Georgia Milestones EOG: Mathematics

End-of-grade mathematics assessment for grades 3 through 8, aligned to Georgia's state-adopted math standards.

When given:
spring
Frequency:
annual
Official source
National Monitoring

NAEP (National Assessment of Educational Progress)

Federally administered sample-based assessment in reading, mathematics, science, writing, and other subjects. NAEP results inform state-by-state comparisons rather than individual student or school accountability.

When given:
biennial in winter
Frequency:
every two years
Official source
Common Questions
  • What math should students know by the end of the year?

    Students should add and subtract large numbers up to the hundred-thousands, multiply and divide multi-digit numbers, work with fractions and decimals to the hundredths, measure angles, and solve area and perimeter problems. They should also explain their thinking, not just get an answer.

  • How can families help with multiplication and division at home?

    Practice times tables in short bursts during car rides or while cooking. Ask questions like how many cookies each person gets if 36 cookies are split among 4 people. Quick, real problems matter more than long worksheets.

  • My student gets stuck on word problems. What helps?

    Read the problem together and ask what is happening before any numbers come in. Have them draw a picture or act it out with coins or blocks. The goal is to understand the story first, then pick the math.

  • How should fractions be sequenced across the year?

    Start with equivalent fractions and comparing fractions using visual models. Then move to adding and subtracting fractions with like denominators, including mixed numbers. Save fractions with denominators of 10 and 100 for last, since that bridges into decimals.

  • Which topics usually need the most reteaching?

    Multi-digit multiplication and long division tend to need the most time, especially when students rely on the algorithm without place value understanding. Comparing fractions with different denominators is another common sticking point. Build in extra practice with area models and number lines.

  • What does a strong start to the year look like?

    Spend the first weeks on place value to the hundred-thousands and fluent addition and subtraction. This builds the foundation for multi-digit multiplication, division, and rounding later. Without solid place value, the rest of the year is harder.

  • How can families practice fractions and decimals at home?

    Cooking and money are the easiest tools. Ask students to double a recipe that uses 3/4 cup, or to figure out how much change is left from a five-dollar bill after buying something for 2.65. Real measurements make fractions and decimals click.

  • What should students be able to do with angles and shapes?

    Students should recognize right, acute, and obtuse angles, measure angles with a protractor, and find the area and perimeter of rectangles, including shapes made from two rectangles put together. They should also spot parallel lines, perpendicular lines, and lines of symmetry.

  • How do I know students are ready for fifth grade math?

    They can solve multi-step word problems with all four operations, compare fractions and decimals using reasoning, and explain why an answer makes sense. If a student can estimate before solving and catch their own mistakes, they are ready.