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8th Grade Math App
Algebra Prep

Linear equations, functions, systems of equations, the Pythagorean theorem, and scientific notation — Lumi's 8th grade math curriculum builds the algebra foundation students need for high school.

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8th Grade Math Topics Covered

Linear Equations

  • Slope-intercept form (y = mx + b)
  • Solving multi-step linear equations
  • Equations with variables on both sides
  • Writing equations from graphs & tables

Functions

  • Definition of a function
  • Function notation
  • Linear vs. nonlinear functions
  • Graphing linear functions
  • Comparing functions

Systems of Equations

  • Solving by graphing
  • Solving by substitution
  • Number of solutions (one, none, infinite)
  • Systems from word problems

Exponents & Scientific Notation

  • Integer exponents (positive, negative, zero)
  • Rules of exponents
  • Scientific notation
  • Operations in scientific notation

Geometry

  • Pythagorean theorem & its converse
  • Distance formula on a coordinate plane
  • Transformations (translations, reflections, rotations, dilations)
  • Volume of cones, cylinders & spheres

Statistics

  • Scatter plots & line of best fit
  • Association vs. causation
  • Two-way frequency tables

Eighth grade math is the last rung before high school algebra. Students who enter 9th grade without a firm grasp of linear equations and functions often spend the first semester catching up. Lumi's 8th grade curriculum ensures students arrive at Algebra 1 ready to succeed — not scrambling to fill gaps.

Arrive at Algebra 1 Ready

Complete 8th grade math, all topics. Voice-guided. No ads. Try free 48 hours.

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