TexasTexas 8th Grade Math Curriculum
Video lessons and practice for every 8th grade math topic. Aligned to Texas Essential Knowledge and Skills (TEKS) standards. Help with homework anytime.
Texas 8th Grade Math Curriculum | StudyPugHelp
ID | Strand & Expectation | StudyPug Topic |
|---|---|---|
TX.8.2.A | Extend previous knowledge of sets and subsets using a visual representation to describe relationships between sets of real numbers |
TX.8.2.B | Approximate the value of an irrational number, including π and square roots of numbers less than 225, and locate that rational number approximation on a number line |
TX.8.2.C | Convert between standard decimal notation and scientific notation |
TX.8.2.D | Order a set of real numbers arising from mathematical and real-world contexts |
TX.8.3.A | Generalize that the ratio of corresponding sides of similar shapes are proportional, including a shape and its dilation |
TX.8.3.B | Compare and contrast the attributes of a shape and its dilation(s) on a coordinate plane |
TX.8.4.A | Use similar right triangles to develop an understanding that slope, m, given as the rate comparing the change in y-values to the change in x-values, (y2 - y1)/ (x2 - x1), is the same for any two points (x1, y1) and (x2, y2) on the same line |
TX.8.4.B | Graph proportional relationships, interpreting the unit rate as the slope of the line that models the relationship |
TX.8.4.C | Use data from a table or graph to determine the rate of change or slope and y-intercept in mathematical and real-world problems |
TX.8.5.A | Represent linear proportional situations with tables, graphs, and equations in the form of y = kx |
TX.8.5.B | Represent linear non-proportional situations with tables, graphs, and equations in the form of y = mx + b, where b ≠ 0 |
TX.8.5.C | Contrast bivariate sets of data that suggest a linear relationship with bivariate sets of data that do not suggest a linear relationship from a graphical representation |
TX.8.5.E | Solve problems involving direct variation |
TX.8.5.F | Distinguish between proportional and non-proportional situations using tables, graphs, and equations in the form y = kx or y = mx + b, where b ≠ 0 |
TX.8.5.G | Identify functions using sets of ordered pairs, tables, mappings, and graphs |
TX.8.5.H | Identify examples of proportional and non-proportional functions that arise from mathematical and real-world problems |
TX.8.5.I | Write an equation in the form y = mx + b to model a linear relationship between two quantities using verbal, numerical, tabular, and graphical representations |
TX.8.6.A | Describe the volume formula V = Bh of a cylinder in terms of its base area and its height |
TX.8.6.B | Model the relationship between the volume of a cylinder and a cone having both congruent bases and heights and connect that relationship to the formulas |
TX.8.6.C | Use models and diagrams to explain the Pythagorean theorem |
TX.8.7.A | Solve problems involving the volume of cylinders, cones, and spheres |
TX.8.7.B | Use previous knowledge of surface area to make connections to the formulas for lateral and total surface area and determine solutions for problems involving rectangular prisms, triangular prisms, and cylinders |
TX.8.7.C | Use the Pythagorean Theorem and its converse to solve problems |
TX.8.7.D | Determine the distance between two points on a coordinate plane using the Pythagorean Theorem |
TX.8.8.A | Write one-variable equations or inequalities with variables on both sides that represent problems using rational number coefficients and constants |
TX.8.8.B | Write a corresponding real-world problem when given a one-variable equation or inequality with variables on both sides of the equal sign using rational number coefficients and constants |
TX.8.8.C | Model and solve one-variable equations with variables on both sides of the equal sign that represent mathematical and real-world problems using rational number coefficients and constants |
TX.8.8.D | Use informal arguments to establish facts about the angle sum and exterior angle of triangles, the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles |
TX.8.9 | Identify and verify the values of x and y that simultaneously satisfy two linear equations in the form y = mx + b from the intersections of the graphed equations |
TX.8.10.A | Generalize the properties of orientation and congruence of rotations, reflections, translations, and dilations of two-dimensional shapes on a coordinate plane |
TX.8.10.B | Differentiate between transformations that preserve congruence and those that do not |
TX.8.11.A | Construct a scatterplot and describe the observed data to address questions of association such as linear, non-linear, and no association between bivariate data |
TX.8.11.B | Determine the mean absolute deviation and use this quantity as a measure of the average distance data are from the mean using a data set of no more than 10 data points |
TX.8.11.C | Simulate generating random samples of the same size from a population with known characteristics to develop the notion of a random sample being representative of the population from which it was selected |
TX.8.12.A | Solve real-world problems comparing how interest rate and loan length affect the cost of credit |
TX.8.12.B | Calculate the total cost of repaying a loan, including credit cards and easy access loans, under various rates of interest and over different periods using an online calculator |
TX.8.12.C | Explain how small amounts of money invested regularly, including money saved for college and retirement, grow over time |
TX.8.12.E | Identify and explain the advantages and disadvantages of different payment methods |
TX.8.12.G | Estimate the cost of a two-year and four-year college education, including family contribution, and devise a periodic savings plan for accumulating the money needed to contribute to the total cost of attendance for at least the first year of college |
8th Grade Math Topics Covered
Texas 8th grade math covers a wide range of topics under the Texas Essential Knowledge and Skills (TEKS) framework. StudyPug organizes every standard into clear, focused video lessons followed by practice problems. Key areas include:
- Real numbers, irrational numbers, and scientific notation
- Proportional relationships, slope, and linear equations in the form y = mx + b
- Identifying and writing linear functions from tables, graphs, and verbal descriptions
- The Pythagorean theorem and its converse, including distance on a coordinate plane
- Volume of cylinders, cones, and spheres; surface area of prisms and cylinders
- Transformations: translations, reflections, rotations, and dilations on a coordinate plane
- Systems of two linear equations solved by graphing
- Scatterplots, trend lines, and bivariate data analysis
- One-variable equations and inequalities with variables on both sides
- Personal financial literacy: interest rates, loan costs, savings, and college planning
How StudyPug Aligns to Texas TEKS for 8th Grade Math
Every lesson on StudyPug is mapped directly to a TEKS standard. When your child finds a topic in the table above, they can watch a focused video lesson, then complete practice problems that mirror the types of questions they'll see in class and on the STAAR test. No searching through textbooks — just find the standard and start learning.
Preparing for the 8th Grade STAAR Math Test
Texas students take the STAAR Math assessment in 8th grade. The test covers the full range of TEKS topics, with an emphasis on linear relationships, the Pythagorean theorem, geometry, and data analysis. StudyPug's practice problems help students work through the problem types they'll encounter on test day. Students who regularly practice with StudyPug build the fluency and confidence needed to perform well on STAAR.
Linear Equations and Slope
One of the biggest topics in 8th grade Texas math is understanding linear relationships. Students learn to calculate slope using (y2 − y1) / (x2 − x1), interpret unit rate as slope on a graph, and write equations in the form y = mx + b. StudyPug breaks each of these concepts into step-by-step video lessons so students understand not just how to solve problems, but why the math works.
The Pythagorean Theorem
8th graders in Texas are expected to understand, apply, and prove the Pythagorean theorem. This includes using models and diagrams to explain why a² + b² = c², solving real-world problems, and finding the distance between two points on a coordinate plane. StudyPug's lessons walk students through each application with worked examples and practice problems.
Personal Financial Literacy in 8th Grade Math
Texas TEKS includes personal financial literacy standards in 8th grade math. Students learn to compare simple and compound interest, calculate the total cost of loans and credit cards, and plan for college savings. StudyPug covers these real-world math applications with the same clear video lessons and practice problems used for every other TEKS topic.