IXL Math - North Carolina fourth-grade math standards

IXL Math

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North Carolina

Skills available for North Carolina fourth-grade math standards

North Carolina math standards: 2008 North Carolina Standard Course of Study (Grades K-5)

North Carolina math standards: 2003 North Carolina Standard Course of Study (Grades K-6)

Standards are in black and IXL math skills are in blue. Hold your mouse over the name of a skill to view a sample problem. Click on the name of a skill to practice that skill.

Printable version

4.NO Number and Operations

4.1 The learner will read, write, model, and compute with non-negative rational numbers.
4.1.01 Develop number sense for rational numbers 0.01 through 99,999.
- Decimals: What decimal number is illustrated? (Third grade - R.1)
- Decimals: Understanding decimals expressed in words (Third grade - R.3)
4.1.01.a Connect model, number word, and number using a variety of representations.
4.1.01.b Build understanding of place value (hundredths through ten thousands).
- Number sense: Convert between place values (Fourth grade - A.2)
- Decimals: Place values in decimal numbers (Fourth grade - S.3)
4.1.01.c Compare and order rational numbers.
4.1.01.d Make estimates of rational numbers in appropriate situations.
4.1.02 Develop fluency with multiplication and division:
4.1.02.a Two-digit by two-digit multiplication (larger numbers with calculator).
4.1.02.b Up to three-digit by two-digit division (larger numbers with calculator).
4.1.02.c Strategies for multiplying and dividing numbers.
4.1.02.d Estimation of products and quotients in appropriate situations.
4.1.02.e Relationships between operations.
- Division: Properties of division (Fourth grade - E.3)
4.1.03 Solve problems using models, diagrams, and reasoning about fractions and relationships among fractions involving halves, fourths, eighths, thirds, sixths, twelfths, fifths, tenths, hundredths, and mixed numbers.
4.1.04 Develop fluency with addition and subtraction of non-negative rational numbers with like denominators, including decimal fractions through hundredths.
4.1.04.a Develop and analyze strategies for adding and subtracting numbers.
4.1.04.b Estimate sums and differences.
- Addition: Estimate sums (Fourth grade - B.8)
- Subtraction: Estimate differences (Fourth grade - C.6)
4.1.04.c Judge the reasonableness of solutions.
4.1.05 Develop flexibility in solving problems by selecting strategies and using mental computation, estimation, calculators or computers, and paper and pencil.

4.MEA Measurement

4.2 The learner will understand and use perimeter and area.
4.2.01 Develop strategies to determine the area of rectangles and the perimeter of plane figures.
- Geometry: Perimeter (Fourth grade - P.14)
- Geometry: Area of squares and rectangles (Fourth grade - P.15)
4.2.02 Solve problems involving perimeter of plane figures and areas of rectangles.
- Geometry: Use area and perimeter to determine cost (Fourth grade - P.18)

4.GEO Geometry

4.3 The learner will recognize and use geometric properties and relationships.
4.3.01 Use the coordinate system to describe the location and relative position of points and draw figures in the first quadrant.
4.3.02 Describe the relative position of lines using concepts of parallelism and perpendicularity.
- Geometry: Parallel, perpendicular, intersecting (Fourth grade - P.21)
4.3.03 Identify, predict, and describe the results of transformations of plane figures.
4.3.03.a Reflections.
- Geometry: Reflection, rotation, and translation (Third grade - P.5)
4.3.03.b Translations.
- Geometry: Reflection, rotation, and translation (Third grade - P.5)
4.3.03.c Rotations.
- Geometry: Reflection, rotation, and translation (Third grade - P.5)

4.DAP Data Analysis and Probability

4.4 The learner will understand and use graphs, probability, and data analysis.
4.4.01 Collect, organize, analyze, and display data (including line graphs and bar graphs) to solve problems.
4.4.02 Describe the distribution of data using median, range and mode.
- Probability and statistics: Mean, median, mode, and range (Fourth grade - U.3)
4.4.03 Solve problems by comparing two sets of related data.
- Data, charts, and graphs: Line graphs (Fourth grade - J.2)
4.4.04 Design experiments and list all possible outcomes and probabilities for an event.
- Probability and statistics: Interpret charts to find mean, median, mode, and range (Fourth grade - U.4)
- Probability and statistics: Combinations (Fourth grade - U.5)

4.ALG Algebra

4.5 The learner will demonstrate an understanding of mathematical relationships.
4.5.01 Identify, describe, and generalize relationships in which:
4.5.01.a Quantities change proportionally.
- Functions: Input/output tables with addition, subtraction, multiplication, and division (Fourth grade - H.1)
4.5.01.b Change in one quantity relates to change in a second quantity.
- Functions: Function tables (Fourth grade - H.2)
4.5.02 Translate among symbolic, numeric, verbal, and pictorial representations of number relationships.
4.5.03 Verify mathematical relationships using:
4.5.03.a Models, words, and numbers.
- Number sense: Inequalities with number lines (Fourth grade - A.8)
- Decimals: Solve decimal problems using diagrams (Fourth grade - S.12)
4.5.03.b Order of operations and the identity, commutative, associative, and distributive properties.