Khan Academy
Learn introductory algebra concepts and skills with Khan Academy's free, interactive lessons.
Algebra foundations | Algebra 1 | Math | Khan Academy
Why did humans invent algebra in the first place? Let's look at the history and beauty of algebra, and review some fundamental ideas and tools we'll use throughout the course. Unit guides are here!
Algebra I - Khan Academy
The Algebra 1 course, often taught in the 9th grade, covers Linear equations, inequalities, functions, and graphs; Systems of equations and inequalities; Extension of the concept of a function; Exponential models; and Quadratic equations, functions, and graphs.
College Algebra - Khan Academy
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Algebra II - Khan Academy
The Algebra 2 course, often taught in the 11th grade, covers Polynomials; Complex Numbers; Rational Exponents; Exponential and Logarithmic Functions; Trigonometric Functions; Transformations of Functions; Rational Functions; and continuing the work with Equations and Modeling from previous grades.
Linear Algebra - Khan Academy
Learn linear algebra—vectors, matrices, transformations, and more. Skip to main content If you're seeing this message, it means we're having trouble loading external resources on our website.
Algebraic expressions | Algebra basics | Math | Khan Academy
The core idea in algebra is using letters to represent relationships between numbers without specifying what those numbers are! Let's explore the basics of communicating in algebraic expressions.
Get ready for Algebra 1 - Khan Academy
Get ready for Algebra 1! Learn the skills that will set you up for success in equations and inequalities; working with units; linear relationships; functions and sequences; exponents radicals, and irrational numbers; and quadratics.
Intro to Logarithms - Khan Academy
Get ready for Algebra 2; Get ready for Precalculus; Get ready for AP® Calculus; Get ready for AP® Statistics; Math: high school & college; Algebra 1; Geometry; Algebra 2; ... Lesson 1: Introduction to logarithms. Intro to logarithms. Intro to Logarithms. Evaluate logarithms. Evaluating logarithms (advanced)
Algebra | Class 7 (Foundation) | Math | Khan Academy
Get ready for Algebra 2; Get ready for Precalculus; Get ready for AP® Calculus; Get ready for AP® Statistics; Math: high school & college; Algebra 1; Geometry; Algebra 2; ... Intro to CS - Python. NEW. Computer programming; AP®︎/College Computer Science Principles; Pixar in a Box; See all Computing; Arts & humanities;