IXL - North Carolina eighth-grade math standards

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Skills available for North Carolina eighth-grade math standards

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.

Standards document:

2010 Common Core State Standards 2010 Common Core State Standards
2003 North Carolina Standard Course of Study 2003 North Carolina Standard Course of Study

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8.NO Number and Operations

8.1 The learner will understand and compute with real numbers.
8.1.01 Develop number sense for the real numbers.
8.1.01.a Define and use irrational numbers.
- Rational numbers: Identify rational and irrational numbers (Eighth grade - D.1)
8.1.01.b Compare and order.
8.1.01.c Use estimates of irrational numbers in appropriate situations.
8.1.02 Develop flexibility in solving problems by selecting strategies and using mental computation, estimation, calculators or computers, and paper and pencil.

8.MEA Measurement

8.2 The learner will understand and use measurement concepts.
8.2.01 Determine the effect on perimeter, area or volume when one or more dimensions of two- and three-dimensional figures are changed.
- Geometry: Perimeter, area, and volume: changes in scale (Eighth grade - Q.32)
8.2.02 Apply and use concepts of indirect measurement.
- Geometry: Similar figures and indirect measurement (Seventh grade - P.14)

8.GEO Geometry

8.3 The learner will understand and use properties and relationships in geometry.
8.3.01 Represent problem situations with geometric models.
8.3.02 Apply geometric properties and relationships, including the Pythagorean theorem, to solve problems.
8.3.03 Identify, predict, and describe dilations in the coordinate plane.

8.DAP Data Analysis and Probability

8.4 The learner will understand and use graphs and data analysis.
8.4.01 Collect, organize, analyze, and display data (including scatterplots) to solve problems.
8.4.02 Approximate a line of best fit for a given scatterplot; explain the meaning of the line as it relates to the problem and make predictions.
- Charts and graphs: Scatter plots (Eighth grade - N.13)
8.4.03 Identify misuses of statistical and numerical data.
- Statistics: Identify representative, random, and biased samples (Eighth grade - BB.6)

8.ALG Algebra

8.5 The learner will understand and use linear relations and functions.
8.5.01 Develop an understanding of function.
8.5.01.a Translate among verbal, tabular, graphic, and algebraic representations of functions.
8.5.01.b Identify relations and functions as linear or nonlinear.
- Nonlinear functions: Identify linear and nonlinear functions (Eighth grade - W.1)
8.5.01.c Find, identify, and interpret the slope (rate of change) and intercepts of a linear relation.
8.5.01.d Interpret and compare properties of linear functions from tables, graphs, or equations.
8.5.02 Write an equation of a linear relationship given: two points, the slope and one point on the line, or the slope and y-intercept.
8.5.03 Solve problems using linear equations and inequalities; justify symbolically and graphically.
8.5.04 Solve equations using the inverse relationships of addition and subtraction, multiplication and division, squares and square roots, and cubes and cube roots.