Learn the basics of algebra—focused on common mathematical relationships, such as linear relationships.

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 …

Learn fifth grade math—arithmetic with fractions and decimals, volume, unit conversion, graphing points, and more. This course is aligned with Common Core standards.

Algebra (all content) 20 units · 412 skills Unit 1 Introduction to algebra Unit 2 Solving basic equations & inequalities (one variable, linear) Unit 3 Linear equations, functions, & graphs Unit …

Unit 1: Introduction to algebra About this unit This topic covers: Evaluating algebraic expressions Manipulating algebraic expressions & equivalent expressions Seeing structure in expressions …

This topic isn't algebra, but it is a survey of all of the most important pre-algebra skills you need to really digest algebra. These skills also tend to be pretty important in life in general!

Created by experts, Khan Academy’s library of trusted, standards-aligned practice and lessons covers math K-12 through early college, grammar, science, history, AP®, SAT®, and more.

Khan Academy's Algebra 2 course is built to deliver a comprehensive, illuminating, engaging, and Common Core aligned experience!

Learn pre-algebra—all of the basic arithmetic and geometry skills needed for algebra.

We will now equate two algebraic expressions and think about how it might constrain what value the variables can take on. The algebraic manipulation you learn here really is the heart of …