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8th Grade Math

Hawaii 8th Grade Math Curriculum

Video lessons and practice for every 8th grade math topic. Aligned to Hawaii Common Core Standards Math so your child keeps up with class.

Hawaii 8th Grade Math Curriculum | StudyPugHelp

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ID

Standard

StudyPug Topic

8.NS.A.1

Know that numbers that are not rational are called irrational. Understand informally that every number has a decimal expansion; for rational numbers show that the decimal expansion repeats eventually, and convert a decimal expansion which repeats eventually into a rational number.

8.NS.A.2

Use rational approximations of irrational numbers to compare the size of irrational numbers, locate them approximately on a number line diagram, and estimate the value of expressions (e.g., π2).

8.EE.A.2

Use square root and cube root symbols to represent solutions to equations of the form x2 = p and x3 = p, where p is a positive rational number. Evaluate square roots of small perfect squares and cube roots of small perfect cubes. Know that √2 is irrational.

8.EE.A.3

Use numbers expressed in the form of a single digit times an integer power of 10 to estimate very large or very small quantities, and to express how many times as much one is than the other.

8.EE.B.5

Graph proportional relationships, interpreting the unit rate as the slope of the graph. Compare two different proportional relationships represented in different ways.

8.EE.B.6

Use similar triangles to explain why the slope m is the same between any two distinct points on a non-vertical line in the coordinate plane; derive the equation y = mx for a line through the origin and the equation y = mx + b for a line intercepting the vertical axis at b.

8.F.A.1

Understand that a function is a rule that assigns to each input exactly one output. The graph of a function is the set of ordered pairs consisting of an input and the corresponding output.

8.F.A.2

Compare properties of two functions each represented in a different way (algebraically, graphically, numerically in tables, or by verbal descriptions).

8.F.B.4

Construct a function to model a linear relationship between two quantities. Determine the rate of change and initial value of the function from a description of a relationship or from two (x, y) values, including reading these from a table or from a graph. Interpret the rate of change and initial value of a linear function in terms of the situation it models, and in terms of its graph or a table of values.

8.F.B.5

Describe qualitatively the functional relationship between two quantities by analyzing a graph (e.g., where the function is increasing or decreasing, linear or nonlinear). Sketch a graph that exhibits the qualitative features of a function that has been described verbally.

8.G.A.1

Verify experimentally the properties of rotations, reflections, and translations.

8.G.A.2

Understand that a two-dimensional figure is congruent to another if the second can be obtained from the first by a sequence of rotations, reflections, and translations; given two congruent figures, describe a sequence that exhibits the congruence between them.

8.G.A.3

Describe the effect of dilations, translations, rotations, and reflections on two-dimensional figures using coordinates.

8.G.A.4

Understand that a two-dimensional figure is similar to another if the second can be obtained from the first by a sequence of rotations, reflections, translations, and dilations; given two similar two-dimensional figures, describe a sequence that exhibits the similarity between them.

8.G.A.5

Use informal arguments to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles.

8.G.B.6

Explain a proof of the Pythagorean Theorem and its converse.

8.G.B.7

Apply the Pythagorean Theorem to determine unknown side lengths in right triangles in real-world and mathematical problems in two and three dimensions.

8.G.C.9

Know the formulas for the volumes of cones, cylinders, and spheres and use them to solve real-world and mathematical problems.

8.SP.A.1

Construct and interpret scatter plots for bivariate measurement data to investigate patterns of association between two quantities. Describe patterns such as clustering, outliers, positive or negative association, linear association, and nonlinear association.

8.SP.A.2

Know that straight lines are widely used to model relationships between two quantitative variables. For scatter plots that suggest a linear association, informally fit a straight line, and informally assess the model fit by judging the closeness of the data points to the line.

8th Grade Math Topics in Hawaii

Hawaii 8th grade math follows the Hawaii Common Core Standards Math, covering a wide range of topics that prepare students for high school algebra and geometry. StudyPug provides video lessons and practice problems for every one of these standards.

Numbers and Exponents

Students learn to distinguish between rational and irrational numbers and understand decimal expansions. Topics include integer exponent properties, square roots, cube roots, and working with numbers in scientific notation. These skills are foundational for all future math courses.

Linear Equations and Functions

A major focus of 8th grade math is linear relationships. Students graph proportional relationships, interpret slope, solve linear equations in one variable, and analyze systems of simultaneous equations. They also explore what makes a relationship a function and how to model linear functions with equations.

  • Slope and proportional relationships
  • Solving one-variable linear equations
  • Systems of linear equations
  • Defining and comparing functions
  • Interpreting y = mx + b

Geometry and Transformations

Students study rotations, reflections, translations, and dilations on the coordinate plane. They learn what it means for two figures to be congruent or similar and apply the angle-angle criterion for triangle similarity. The Pythagorean Theorem is introduced, proven, and applied to real-world problems in two and three dimensions.

Data and Statistics

8th grade data work includes constructing and interpreting scatter plots, fitting lines to data, and using linear models to solve problems. Students also analyze bivariate categorical data using two-way tables and relative frequencies.

StudyPug covers every one of these 8th grade math topics with clear video lessons and targeted practice problems, all aligned to Hawaii Common Core Standards Math.