OnlyMath

OnlyMath / Topics

Explore math by topic.

Choose a subject to see a sensible starting point and relevant resources.

01 / High school

Algebra 1 & 2

Equations, functions, and the skills that support later math.

Where to start

  1. Solve linear equations and inequalities
  2. Connect tables, graphs, and function notation
  3. Study quadratics, polynomials, and exponentials

Useful resources

  • Khan Academy Practice
  • Desmos Graphing Calculator Tool
  • GeoGebra Tool

Check your understanding: Can you explain what the slope and intercept mean in a real problem?

Algebra foundations

Check fractions, equations, inequalities, slope, and functions, then choose the chapter that fits your results.

Start the five-question diagnosticRead the full learning unit
View matching resources
02 / High school

Geometry

Shapes, proofs, measurement, and spatial reasoning.

Where to start

  1. Review angles, triangles, and congruence
  2. Practice short proofs and similarity
  3. Apply circles, area, volume, and coordinate geometry

Useful resources

  • Khan Academy Practice
  • GeoGebra Tool
  • CK-12 FlexMath Practice

Check your understanding: Can you justify each step of a triangle proof?

View matching resources
03 / High school / college

Precalculus

Functions, trigonometry, and the bridge to calculus.

Where to start

  1. Review function notation and transformations
  2. Learn the unit circle and trigonometric graphs
  3. Work with inverse functions, sequences, and introductory limits

Useful resources

  • Khan Academy Practice
  • Desmos Graphing Calculator Tool
  • Professor Leonard Video

Check your understanding: Can you describe how a function changes from its graph and formula?

View matching resources
04 / High school / college

Calculus

Limits, derivatives, integrals, and their applications.

Where to start

  1. Make sense of limits and continuity
  2. Interpret derivatives as rates of change
  3. Connect integrals to accumulation and area

Useful resources

  • Khan Academy Practice
  • MIT OpenCourseWare Course
  • 3Blue1Brown Video

Check your understanding: Can you explain a derivative and an integral in words, units, and a graph?

First steps in calculus

Check your algebra readiness and your understanding of limits, rates, and accumulation before starting the unit.

Start the five-question diagnosticRead the full learning unit
View matching resources
05 / High school / college

Statistics

Explore data, probability, and statistical inference.

Where to start

  1. Describe distributions and spot misleading summaries
  2. Build probability models
  3. Read confidence intervals and hypothesis tests

Useful resources

  • Khan Academy Practice
  • MIT OpenCourseWare Course
  • GeoGebra Tool

Check your understanding: Can you distinguish a sample result from a claim about a population?

View matching resources
06 / College

Linear Algebra

Vectors, matrices, transformations, and eigenvalues.

Where to start

  1. Build intuition with vectors and linear combinations
  2. Solve systems with matrices
  3. Interpret transformations, eigenvectors, and eigenvalues

Useful resources

  • MIT OpenCourseWare Course
  • 3Blue1Brown Video
  • Coursera Course

Check your understanding: Can you explain a matrix as a transformation, not only an array of numbers?

View matching resources