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Learning Standards Standards

What does a student learn in ?

This is the year math stretches into bigger numbers and the first real work with fractions. Students read and compare numbers in the thousands, round them, and use the four operations to solve multi-step word problems. They learn that two fractions can look different and still be equal, and they start adding and subtracting fractions with the same bottom number. By spring, they can multiply a three-digit number by a one-digit number and explain why their answer makes sense.

  • Place value
  • Multi-digit multiplication
  • Long division
  • Fractions
  • Word problems
  • Area and perimeter
Source: Maine Maine Learning Results
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 and big numbers

    Students work with numbers into the hundred thousands and millions. They read them, compare them, round them, and notice how each digit is ten times the one to its right.

  2. 2

    Multiplication and division

    Students multiply larger numbers and divide with remainders. Word problems get longer, so students learn to slow down, picture what is happening, and check that the answer makes sense.

  3. 3

    Fractions and equivalence

    Students compare fractions, find ones that are equal, and add and subtract fractions with the same bottom number. They also start connecting fractions to decimals like 0.5 and 0.25.

  4. 4

    Measurement and data

    Students convert between units like feet and inches or hours and minutes. They solve problems about time, money, and length, and read graphs that show fractions of an inch.

  5. 5

    Shapes, angles, and symmetry

    Students measure angles with a protractor and sort shapes by their sides and angles. They find lines of symmetry and start using more precise words to describe what they see.

Mastery Learning Standards
The required skills a student should display by the end of Grade 4.
Standards for Mathematical Practice

  • Make Sense of Problems

    ME-MATH.MP.4.1

    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

    ME-MATH.MP.4.2

    Students take a real problem (like sharing 24 crayons among 4 kids) and turn it into numbers and symbols to solve it. Then they translate the answer back into plain language to check that it actually makes sense.

  • Construct Arguments

    ME-MATH.MP.4.3

    Students explain why their math answer is correct and listen to how classmates solved the same problem. They spot mistakes in someone else's reasoning and explain what went wrong.

  • Model with Mathematics

    ME-MATH.MP.4.4

    Students use math to make sense of real situations, like figuring out how much something costs or how long a trip will take. They draw pictures, write equations, or make a chart to work out the answer.

  • Use Tools Strategically

    ME-MATH.MP.4.5

    Students choose the right tool for the math at hand, whether that means reaching for a calculator, sketching on paper, or making a quick estimate. The goal is knowing when each tool helps and when it gets in the way.

  • Attend to Precision

    ME-MATH.MP.4.6

    Students choose exact words and correct units when solving problems. They check that their math vocabulary, measurements, and calculations are precise, not just close enough.

  • Use Structure

    ME-MATH.MP.4.7

    Students notice patterns and rules hiding inside a math problem, like how the columns in an addition problem line up by place value, and use those patterns as a shortcut to solve it.

  • Express Regularity

    ME-MATH.MP.4.8

    Students notice when a math process keeps working the same way and use that pattern as a shortcut. Instead of solving each problem from scratch, they spot the repeating structure and apply what they already know.

K-8 Mathematics Content

  • Counting and Number

    ME-MATH.K8.4.1

    Students work with whole numbers, fractions, and basic number patterns at the fourth-grade level. They count, compare, and reason about numbers to solve problems that get more complex than third grade.

  • Operations and Algebraic Thinking

    ME-MATH.K8.4.2

    Students practice solving word problems using addition, subtraction, multiplication, and division. They learn to read a situation, choose the right operation, and write an equation that matches it.

  • Measurement and Data

    ME-MATH.K8.4.3

    Reading a graph or table, students pull out key facts, spot patterns, and summarize what the numbers mean. This standard covers bar graphs, line plots, and simple data summaries built from real measurements.

  • Geometry

    ME-MATH.K8.4.4

    Students sort and describe shapes like squares, triangles, and cubes by their sides, angles, and faces. They also measure angles and compare shapes based on what makes each one unique.

  • Ratios and Proportional Relationships

    ME-MATH.K8.4.5

    Students use ratios to solve everyday math problems, like figuring out how many items you get for a set price or how two quantities compare. They practice spotting those relationships and using them to find a missing number.

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

Maine Through Year Assessment: Mathematics (Grades 3-8)

Through-year mathematics assessment for grades 3 through 8, aligned to the Maine Learning Results.

When given:
multiple windows across the year
Frequency:
multiple windows annually
Official source
National Monitoring

NAEP (National Assessment of Educational Progress)

Federally administered sample-based assessment in reading, mathematics, science, and writing. 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 a fourth grader be able to do by the end of the year?

    Students should add and subtract large numbers quickly, multiply numbers like 36 times 14, and divide with remainders. They should also compare fractions, read graphs, and solve word problems that take more than one step.

  • How can I help my child with multiplication at home?

    Practice the times tables up to 12 in short bursts, five minutes at a time. Ask quick questions while cooking or driving, like how many wheels are on six cars. Quick recall makes the harder work this year much easier.

  • My child still counts on fingers. Should I be worried?

    Finger counting is fine for figuring something out, but by fourth grade students should know basic facts from memory. If recall is slow, try ten minutes a day of flashcards or a free fact-practice app. Speed will come with steady practice.

  • What does fraction work look like this year?

    Students compare fractions like 3/4 and 5/8, add fractions with the same bottom number, and find equal fractions such as 1/2 and 4/8. Cutting a pizza or measuring with a ruler at home gives a clear picture of what the numbers mean.

  • How should multi-digit multiplication and division be sequenced across the year?

    Build place value first, then move to multiplying by one-digit numbers using area models and partial products before introducing the standard algorithm. Division with remainders comes next. Saving the algorithm until students can explain the model usually cuts down on reteaching later.

  • Which fourth grade skills usually need the most reteaching?

    Equivalent fractions, comparing fractions with unlike bottoms, and interpreting remainders in word problems are the common trouble spots. Multi-step word problems also trip students up when the question hides inside the wording. Plan extra review time for these in the spring.

  • How do I know if a student is ready for fifth grade math?

    Look for fluent multiplication facts, confidence with the standard algorithms for addition and subtraction, and the ability to add fractions with like bottoms. Students should also solve a two-step word problem and explain their thinking without prompting.

  • How much should word problems matter in planning?

    A lot. Word problems should show up almost every day, not just on Fridays. Mix in problems where the numbers are easy so students focus on the reasoning, and problems where the numbers are harder so they practice the procedure.

  • What can I do in ten minutes a night to help?

    Pick one thing and rotate. Monday and Wednesday do times tables, Tuesday and Thursday do a word problem from the day's homework, and on weekends measure something or split a recipe in half. Short and steady beats one long session.