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Florida Standards

Florida 8th Grade Math B.E.S.T. Standards

All 40 Florida math standards for 8th grade, each explained in plain English. The official wording is one click away under each one.

40 standards

Number Sense and Operations

7 standards
Solve problems involving rational numbers, including numbers in scientific notation, and extend the understanding of rational numbers to irrational numbers.
MA.8.NSO.1.1
Define irrational numbers as part of the real numbers and estimate where expressions like √2 + 1 fall on a number line.
Official wording
Extend previous understanding of rational numbers to define irrational numbers within the real number system. Locate an approximate value of a numerical expression involving irrational numbers on a number line.
MA.8.NSO.1.2
Locate, rank and compare a mix of rational and irrational numbers written in different forms, like √10, 3.2, pi and 22/7.
Official wording
Plot, order and compare rational and irrational numbers, represented in various forms.
MA.8.NSO.1.3
Use exponent rules with negative and zero exponents to evaluate and rewrite number expressions fluently, like 5⁻² = 1/25 and 2³ × 2⁻⁵ = 2⁻².
Official wording
Extend previous understanding of the Laws of Exponents to include integer exponents. Apply the Laws of Exponents to evaluate numerical expressions and generate equivalent numerical expressions, limited to integer exponents and rational number bases, with procedural fluency.
MA.8.NSO.1.4
Write very large or very small amounts in scientific notation and tell how many times bigger one is, like 3 × 10⁸ is 100 times 3 × 10⁶.
Official wording
Express numbers in scientific notation to represent and approximate very large or very small quantities. Determine how many times larger or smaller one number is compared to a second number.
MA.8.NSO.1.5
Add, subtract, multiply and divide numbers in scientific notation fluently, like 4 × 10⁵ times 2 × 10³ is 8 × 10⁸.
Official wording
Add, subtract, multiply and divide numbers expressed in scientific notation with procedural fluency.
MA.8.NSO.1.6
Solve real-life problems with scientific notation, like how many times heavier Earth is than the Moon.
Official wording
Solve real-world problems involving operations with numbers expressed in scientific notation.
MA.8.NSO.1.7
Work through math and real-life problems with several steps using the order of operations on rational numbers, including exponents and square or cube roots.
Official wording
Solve multi-step mathematical and real-world problems involving the order of operations with rational numbers including exponents and radicals.

Algebraic Reasoning

14 standards
Generate equivalent algebraic expressions.
MA.8.AR.1.1
Use exponent rules to rewrite algebraic expressions with integer exponents and single-term bases, like x⁵ × x⁻² = x³.
Official wording
Apply the Laws of Exponents to generate equivalent algebraic expressions, limited to integer exponents and monomial bases.
MA.8.AR.1.2
Multiply two linear expressions with rational coefficients using the distributive property, like x + 3 times 2x - 1 gives 2x² + 5x - 3.
Official wording
Apply properties of operations to multiply two linear expressions with rational coefficients.
MA.8.AR.1.3
Factor a shared single-term factor out of a sum of two algebraic expressions, like 6x² + 9x as 3x times the sum 2x + 3.
Official wording
Rewrite the sum of two algebraic expressions having a common monomial factor as a common factor multiplied by the sum of two algebraic expressions.
Solve multi-step one-variable equations and inequalities.
MA.8.AR.2.1
Solve linear equations that take several steps, including fractions or decimals and variables on both sides, like 3x + 5 = x - 7.
Official wording
Solve multi-step linear equations in one variable, with rational number coefficients. Include equations with variables on both sides.
MA.8.AR.2.2
Solve two-step linear inequalities and show the solution with symbols and on a number line, like 2x - 5 < 9 gives x < 7.
Official wording
Solve two-step linear inequalities in one variable and represent solutions algebraically and graphically.
MA.8.AR.2.3
Find the real solutions to equations like x² = 49 and x³ = -8 using square and cube roots.
Official wording
Given an equation in the form of x² = p and x³ = q, where p is a whole number and q is an integer, determine the real solutions.
Extend understanding of proportional relationships to two-variable linear equations.
MA.8.AR.3.1
Decide whether a linear relationship is also proportional, like checking if its graph passes through the origin.
Official wording
Determine if a linear relationship is also a proportional relationship.
MA.8.AR.3.2
Find the slope of a line from a table, graph or description, like a rise of 6 over a run of 2 giving a slope of 3.
Official wording
Given a table, graph or written description of a linear relationship, determine the slope.
MA.8.AR.3.3
Write a linear equation as y = mx + b from a table, graph or description, like a $5 fee plus $2 per hour as y = 2x + 5.
Official wording
Given a table, graph or written description of a linear relationship, write an equation in slope-intercept form.
MA.8.AR.3.4
Graph a two-variable linear equation from words, a table or y = mx + b, like y = -2x + 4 for a 4-inch candle burning down.
Official wording
Given a mathematical or real-world context, graph a two-variable linear equation from a written description, a table or an equation in slope-intercept form.
MA.8.AR.3.5
Find and explain the slope and y-intercept of a real-life linear situation in any form, like $3 per mile plus a $5 starting fee.
Official wording
Given a real-world context, determine and interpret the slope and y-intercept of a two-variable linear equation from a written description, a table, a graph or an equation in slope-intercept form.
Develop an understanding of two-variable systems of equations.
MA.8.AR.4.1
Test given ordered pairs to see which solve both equations in a system, like checking whether x = 2, y = 3 fits y = x + 1 and y = 2x - 1.
Official wording
Given a system of two linear equations and a specified set of possible solutions, determine which ordered pairs satisfy the system of linear equations.
MA.8.AR.4.2
Look at two lines graphed together and tell if the system has one solution, none or infinitely many, like parallel lines meaning no solution.
Official wording
Given a system of two linear equations represented graphically on the same coordinate plane, determine whether there is one solution, no solution or infinitely many solutions.
MA.8.AR.4.3
Solve a system of two linear equations by graphing both lines and finding where they cross, like comparing two phone plans.
Official wording
Given a mathematical or real-world context, solve systems of two linear equations by graphing.

Functions

3 standards
Define, evaluate and compare functions.
MA.8.F.1.1
Tell whether each input has exactly one output in a list of pairs, table, graph or mapping diagram, and state the domain and range.
Official wording
Given a set of ordered pairs, a table, a graph or mapping diagram, determine whether the relationship is a function. Identify the domain and range of the relation.
MA.8.F.1.2
Decide whether a function shown by a graph or equation is linear, and whether an input-output table could be, like checking for a constant rate of change.
Official wording
Given a function defined by a graph or an equation, determine whether the function is a linear function. Given an input-output table, determine whether it could represent a linear function.
MA.8.F.1.3
Describe where a real-life function rises, falls or stays flat from a graph or written description, like a car's speed during a trip.
Official wording
Analyze a real-world written description or graphical representation of a functional relationship between two quantities and identify where the function is increasing, decreasing or constant.

Geometric Reasoning

10 standards
Develop an understanding of the Pythagorean Theorem and angle relationships involving triangles.
MA.8.GR.1.1
Use the Pythagorean Theorem to find a missing side of a right triangle, like how high a ladder reaches up a wall.
Official wording
Apply the Pythagorean Theorem to solve mathematical and real-world problems involving unknown side lengths in right triangles.
MA.8.GR.1.2
Find how far apart two points on a coordinate plane are by drawing a right triangle and using the Pythagorean Theorem, like 3 over and 4 up is 5 units.
Official wording
Apply the Pythagorean Theorem to solve mathematical and real-world problems involving the distance between two points in a coordinate plane.
MA.8.GR.1.3
Use the Triangle Inequality to test if three lengths can form a triangle and the Pythagorean converse to test for a right triangle, like 5, 12 and 13.
Official wording
Use the Triangle Inequality Theorem to determine if a triangle can be formed from a given set of sides. Use the converse of the Pythagorean Theorem to determine if a right triangle can be formed from a given set of sides.
MA.8.GR.1.4
Find missing angles using supplementary, complementary, vertical and adjacent angle pairs, like 55° pairing with 35° to make a right angle.
Official wording
Solve mathematical problems involving the relationships between supplementary, complementary, vertical or adjacent angles.
MA.8.GR.1.5
Solve problems using how a triangle's inside and outside angles relate, like an exterior angle equaling the two far interior angles added together.
Official wording
Solve problems involving the relationships of interior and exterior angles of a triangle.
MA.8.GR.1.6
Split regular polygons into triangles to build and use a formula for the sum of their interior angles, like a hexagon's 720°.
Official wording
Develop and use formulas for the sums of the interior angles of regular polygons by decomposing them into triangles.
Understand similarity and congruence using models and transformations.
MA.8.GR.2.1
Name the single transformation that turns a figure into its image, like a slide, flip, turn or dilation.
Official wording
Given a preimage and image generated by a single transformation, identify the transformation that describes the relationship.
MA.8.GR.2.2
Find the scale factor of a dilation by comparing a figure with its image, like sides doubling from 3 to 6 for a factor of 2.
Official wording
Given a preimage and image generated by a single dilation, identify the scale factor that describes the relationship.
MA.8.GR.2.3
Describe and carry out one translation, reflection, rotation or dilation on a coordinate plane, like moving each point 3 units right.
Official wording
Describe and apply the effect of a single transformation on two-dimensional figures using coordinates and the coordinate plane.
MA.8.GR.2.4
Use proportions between similar triangles to solve problems, like finding a tree's height from its shadow.
Official wording
Solve mathematical and real-world problems involving proportional relationships between similar triangles.

Data Analysis and Probability

6 standards
Represent and investigate numerical bivariate data.
MA.8.DP.1.1
Make a scatter plot or line graph, whichever fits, for real-life paired number data, like hours studied and test scores.
Official wording
Given a set of real-world bivariate numerical data, construct a scatter plot or a line graph as appropriate for the context.
MA.8.DP.1.2
Describe patterns in a real-life scatter plot, like whether points trend up, trend down or show no link, plus any clusters or outliers.
Official wording
Given a scatter plot within a real-world context, describe patterns of association.
MA.8.DP.1.3
Draw a straight line by eye that fits a scatter plot with a linear pattern, like a trend line for age and height.
Official wording
Given a scatter plot with a linear association, informally fit a straight line.
Represent and find probabilities of repeated experiments.
MA.8.DP.2.1
List every possible outcome of an experiment done more than once, like HH, HT, TH and TT for two coin flips.
Official wording
Determine the sample space for a repeated experiment.
MA.8.DP.2.2
Work out the expected chance of an outcome when an experiment repeats, like a 1/4 chance of heads twice in two flips.
Official wording
Find the theoretical probability of an event related to a repeated experiment.
MA.8.DP.2.3
Solve real-life probability problems for single or repeated experiments, including predicting results, like about 50 sixes in 300 rolls of a number cube.
Official wording
Solve real-world problems involving probabilities related to single or repeated experiments, including making predictions based on theoretical probability.

The official Florida documents

Florida's B.E.S.T. Standards for Mathematics, Florida Department of Education.

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