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Oklahoma Standards

Oklahoma 8th Grade Math Standards

All 29 Oklahoma math standards for 8th grade, each explained in plain English. The official wording is one click away under each one.

29 standards

Numbers & Operations

4 standards
Read, write, compare, classify, and represent real numbers, and use them to solve problems in various contexts.
PA.N.1.1
Work out and use the rules of integer exponents, including that any nonzero number to the zero power is 1, like 2⁻³ = 1/8 and x⁵ · x² = x⁷.
Official wording
Develop and apply the properties of integer exponents, including a⁰= 1 (with a ≠ 0), to generate equivalent numerical and algebraic expressions.
PA.N.1.2
Estimate huge and tiny quantities in scientific notation and compare them, like 3.2 × 10⁶ is greater than 9 × 10⁵.
Official wording
Express and compare approximations of very large and very small numbers using scientific notation.
PA.N.1.3
Multiply and divide numbers in scientific notation and give the answer in the same form, like 2 × 10³ times 4 × 10⁵ is 8 × 10⁸.
Official wording
Multiply and divide numbers expressed in scientific notation and express the answer in scientific notation.
PA.N.1.4
Order real numbers on a number line, know square roots of perfect squares to 400, and place other roots between two whole numbers, like √50 between 7 and 8.
Official wording
Compare and order real numbers; locate real numbers on a number line. Identify the square roots of perfect squares to 400 or, if it is not a perfect square root, locate it as an irrational number between two consecutive positive integers.

Algebraic Reasoning & Algebra

13 standards
Explain the concept of function in mathematical situations and distinguish between the concepts of linear and nonlinear functions.
PA.A.1.1
Recognize that in a function the input, or independent variable, sets the value of the output, or dependent variable, like hours worked setting pay.
Official wording
Recognize that a function is a relationship between an independent variable and a dependent variable in which the value of the independent variable determines the value of the dependent variable.
PA.A.1.2
Write linear functions to model situations that change at a steady rate, like a $3 taxi fare plus $2 per mile is y = 2x + 3.
Official wording
Use linear functions to represent and model mathematical situations.
PA.A.1.3
Decide whether a function is linear by checking if it can be written as y = mx + b or graphs as a non-vertical line, unlike y = x².
Official wording
Identify a function as linear if it can be expressed in the form y = mx + b or if its graph is a non-vertical straight line.
Identify and justify linear functions using mathematical models and situations; solve problems involving linear functions and interpret results in the original context.
PA.A.2.1
Show a linear function as a table, a description in words, an equation and a graph, and move between them, like a table to y = 3x - 1.
Official wording
Represent linear functions with tables, verbal descriptions, symbols, and graphs; translate from one representation to another.
PA.A.2.2
Spot, describe and analyze a straight-line relationship between two variables, like how total cost grows by the same amount with each ticket.
Official wording
Identify, describe, and analyze linear relationships between two variables.
PA.A.2.3
Find the slope and intercepts of a linear graph, know slope is the rate of change, and know a proportional line has a y-intercept of 0.
Official wording
Identify graphical properties of linear functions, including slope and intercepts. Know that the slope equals the rate of change and that the y-intercept is zero when the function represents a proportional relationship.
PA.A.2.4
Predict how a line moves when its slope or y-intercept changes, and check with graphing tools, like y = 2x + 1 becoming y = 2x + 4 shifts up 3.
Official wording
Predict the effect on the graph of a linear function when the slope or y-intercept changes. Use appropriate tools to examine these effects.
PA.A.2.5
Solve problems with linear functions and explain what the answer means in the situation, like when two phone plans cost the same.
Official wording
Solve problems involving linear functions and interpret results in the original context.
Generate equivalent numerical and algebraic expressions and use algebraic properties to evaluate expressions.
PA.A.3.1
Plug in values for variables, then simplify to find what an algebraic expression equals, like 2a² - b is 14 when a = 3 and b = 4.
Official wording
Use substitution to simplify and evaluate algebraic expressions.
PA.A.3.2
Justify each step when simplifying expressions by combining like terms and following order of operations, naming properties such as distributive or commutative.
Official wording
Justify steps in generating equivalent expressions by combining like terms and using order of operations (to include grouping symbols). Identify the properties used, including the properties of operations (associative, commutative, and distributive).
Represent and solve problems using mathematical models and situations with equations and inequalities involving linear expressions.
PA.A.4.1
Solve linear equations in one variable, including ones with no or infinitely many solutions like 2x + 1 = 2x + 4, and use them to model situations.
Official wording
Solve mathematical problems using linear equations with one variable where there could be one, infinitely many, or no solutions. Represent situations using linear equations and interpret solutions in the original context.
PA.A.4.2
Model problems with two-step inequalities such as 3x - 4 > 11 or 0.5x + 2 < 6, solve them over rational numbers, and graph the solutions.
Official wording
Represent, write, solve, and graph problems leading to linear inequalities with one variable in the form px + q > r and px + q < r, where p, q, and r are rational numbers.
PA.A.4.3
Write an equation or inequality in one variable to describe a real situation, like 25 + 8w = 100 for saving $8 a week toward $100.
Official wording
Represent real-world situations using equations and inequalities involving one variable.

Geometry & Measurement

6 standards
Apply the Pythagorean theorem to solve problems involving triangles.
PA.GM.1.1
Show why the Pythagorean theorem works with measurements, drawings or geometry software, and use it to find missing sides of right triangles.
Official wording
Justify the Pythagorean theorem using measurements, diagrams, or dynamic software to solve problems in two dimensions involving right triangles.
PA.GM.1.2
Find how far apart two points on a coordinate plane are by drawing a right triangle and applying the Pythagorean theorem, like legs of 3 and 4 give 5.
Official wording
Use the Pythagorean theorem to find the distance between any two points in a coordinate plane.
Justify and use formulas to calculate surface area and volume of three-dimensional figures.
PA.GM.2.1
Find the surface area of a rectangular prism by unfolding it into a net or splitting it into faces, in square units like cm².
Official wording
Calculate the surface area of a rectangular prism using decomposition or nets. Use appropriate units (e.g., cm²).
PA.GM.2.2
Find the surface area of a cylinder from its net, two circles and a rectangle, giving answers in terms of π or with 3.14, in square units.
Official wording
Calculate the surface area of a cylinder, in terms of pi (π) and using approximations for pi (π), using decomposition or nets. Use appropriate units (e.g., cm²).
PA.GM.2.3
Explain why multiplying the base area by the height gives a rectangular prism's volume, V = Bh, and label it in cubic units like cm³.
Official wording
Justify why base area (B) and height (h) in the formula V=Bh are multiplied to find the volume of a rectangular prism. Use appropriate units (e.g., cm³).
PA.GM.2.4
Build and use V = πr²h, or V = Bh, to find a cylinder's volume in terms of π or with 3.14, explaining why base area times height works.
Official wording
Develop and use the formulas V=πr²h and V=Bh to determine the volume of right cylinders, in terms of π and using approximations for pi (π). Justify why base area (B) and height (h) are multiplied to find the volume of a right cylinder. Use appropriate units (e.g., cm³).

Data & Probability

6 standards
Display and interpret data in a variety of ways, including using scatter plots and approximate lines of best fit. Use the line of best fit and average rate of change to make predictions and draw conclusions about data.
PA.D.1.1
Describe how adding or removing one data value changes the mean and median, using technology to make displays that show the effect.
Official wording
Describe the impact that inserting or deleting a data point has on the mean and the median of a data set. Create data displays using technology to examine this impact.
PA.D.1.2
Explain how an unusually high or low value pulls on the mean, median and range of a data set, like one score of 20 in a class of 90s.
Official wording
Explain how outliers affect measures of center and spread.
PA.D.1.3
Collect two-variable data, graph it as a labeled scatter plot, sketch a line of best fit, and use it to describe the trend and predict new values.
Official wording
Collect, display, and interpret data using scatter plots. Use the shape of the scatter plot to find the informal line of best fit, make statements about the average rate of change, and make predictions about values not in the original data set. Use appropriate titles, labels, and units.
Calculate experimental probabilities and reason about probabilities to model and solve problems.
PA.D.2.1
Find experimental probability from trial results, write it as a fraction, decimal or percent, and use it to predict outcomes, like 12 heads in 40 flips.
Official wording
Calculate experimental probabilities and represent them as percents, fractions, and decimals between 0 and 1. Use experimental probabilities to predict relative frequencies when actual probabilities are unknown.
PA.D.2.2
Judge how a sample was chosen and whether it is random enough to generalize to a whole population, spotting limits and bias.
Official wording
Determine how samples are chosen (randomness) to draw and support conclusions about generalizing a sample to a population, including identifying limitations and biases.
PA.D.2.3
Define dependent and independent events and compare their probabilities, like drawing two cards with or without putting the first back.
Official wording
Define, compare, and contrast the probabilities of dependent and independent events.

The official Oklahoma documents

Oklahoma Academic Standards for Mathematics, Oklahoma State Department of Education.

The plain-English lines are EMStudio's own explanations, shown beside the official wording. They are not part of the standards.