🔢 8th grade Math

Units

1. Unit 1

   🔭Big, Small & Real Numbers

   Writing very large and very small numbers in scientific notation, telling rational from irrational numbers, ordering numbers such as √2 and π, and mentally multiplying and dividing by powers of ten.

   TEKS student expectation: 8.2(A); 8.2(C); 8.2(D) · sets of real numbers, scientific notation, and ordering real numbers

2. Unit 2

   🟦Squares, Cubes & Roots

   Knowing perfect squares and cubes, finding square roots and cube roots, estimating where a square root falls between whole numbers, and linking squares to the area of a square.

   TEKS student expectation: 8.2(B) · square roots and estimating irrational numbers

3. Unit 3

   🪞Tessellations & Transformations

   Why some shapes tessellate, naming the transformations in a tiling, and finding the image of a point after a translation, reflection, rotation or dilation on a coordinate grid.

   TEKS student expectation: 8.3(C); 8.10(A); 8.10(C) · dilations, translations, reflections and rotations on the coordinate plane

4. Unit 4

   🔷Congruent Shapes

   Recognizing congruent shapes, matching corresponding sides and angles, and finding the coordinates of a point after a slide, flip or turn.

   TEKS student expectation: 8.10(A); 8.10(B) · transformations that keep shapes congruent

5. Unit 5

   📈Slope & Rate of Change

   Finding slope from two points or a table, reading slope as a unit rate, writing y = mx + b, and saying what the intercept means.

   TEKS student expectation: 8.4(A); 8.4(B); 8.4(C) · slope as a rate of change, and finding slope and y-intercept

6. Unit 6

   📈Tables, Graphs & Linear Relations

   Using an equation like y = 3x + 2 to build a table of values, find a missing x or y, and describe how the variables change together.

   TEKS student expectation: 8.5(B); 8.5(I) · linear relationships of the form y = mx + b in tables, graphs and equations

7. Unit 7

   🔀Functions

   Deciding whether a relation is a function, comparing two functions shown in different ways, spotting linear functions, and matching a graph to a story.

   TEKS student expectation: 8.5(G); 8.5(H) · identifying functions from ordered pairs, tables and graphs

8. Unit 8

   📈Scatter Plots & Stories

   Deciding when two-variable data is needed, picking the best graph, describing scatter plots as strong, weak, positive, negative or none, spotting outliers, and noticing graphs that mislead.

   TEKS student expectation: 8.5(C); 8.5(D); 8.11(A) · scatterplots, association and trend lines

9. Unit 9

   🍦Cones, Cylinders & Spheres

   Using the volume formulas for cylinders, cones and spheres, in terms of π and with 3.14.

   TEKS student expectation: 8.6(B); 8.7(A) · volume of cylinders, cones and spheres

10. Unit 10

    📦Surface Area & Volume

    Finding surface area and volume of boxes, cubes, triangular prisms and cylinders, working backwards to a missing dimension, linking cm³ to milliliters, and recognizing nets and views of 3D objects.

    TEKS student expectation: 8.7(B) · lateral and total surface area of prisms and cylinders

11. Unit 11

    📐Pythagorean Theorem

    Finding a missing side of a right triangle, checking whether a triangle is a right triangle, and using the theorem for ladders and diagonals.

    TEKS student expectation: 8.6(C); 8.7(C) · the Pythagorean Theorem and its converse

12. Unit 12

    📐Angle Detective

    Using equal and supplementary angles when a transversal crosses parallel lines, and the angle sums of triangles, quadrilaterals and polygons, including exterior angles.

    TEKS student expectation: 8.8(D) · angle sums of triangles and angles formed by parallel lines and a transversal

13. Unit 13

    ✖️Systems of Equations

    Solving pairs of linear equations, checking a solution, telling when a system has no solution or infinitely many, and simple word problems.

    TEKS student expectation: 8.9 · the values of x and y that satisfy two linear equations

14. Unit 14

    ⚖️Variables on Both Sides

    Your child writes and solves equations with the variable on both sides of the equal sign, such as comparing two phone plans, and checks whether a value is a solution.

    TEKS student expectation: 8.8(A); 8.8(C) · writing and solving equations with variables on both sides

15. Unit 15

    🎓Loans, Interest & College

    Personal financial literacy: your child sees how the interest rate and the length of a loan change the cost of credit, works out what a loan or credit card balance really costs, watches regular investing grow, compares simple and compound interest and ways to pay, and estimates college costs with a savings plan.

    TEKS student expectation: 8.12(A); 8.12(B); 8.12(C); 8.12(D); 8.12(E); 8.12(F); 8.12(G) · the cost of credit, investing over time, simple and compound interest, ways to pay, and saving for college