Set Reminder Save for later

Algebra foundations

This course is a part of Algebra I, a 17-course Topic series from Khan Academy.

This topic is an overview of the fundamental ideas and tools of algebra.

This course contains 10 segments:

Overview and history of algebra

Did you realize that the word "algebra" comes from Arabic (just like "algorithm" and "al jazeera" and "Aladdin")? And what is so great about algebra anyway? This tutorial doesn't explore algebra so much as it introduces the history and ideas that underpin it.

Introduction to variables

Wait, why are we using letters in math? How can an 'x' represent a number? What number is it? This tutorial is great if you're just beginning to delve into the world of variables and expressions.

Substitution and evaluating expressions

Learn how to substitute (or "plug in") values for variables and evaluate algebraic expressions.

Evaluating expressions word problems

Learn how to plug in values to evaluate real-world expressions.

Writing algebraic expressions introduction

Learn the basics of writing expressions with variables.

Dependent & independent variables

Sometimes one variable depends on another. For example, the amount of money you make might depend on how many hours you work.

Combining like terms

Learn how to combine like terms (with negative numbers and variables), including more complex problems involving the distributive property.

Introduction to equivalent algebraic expressions

Learn to tell whether or not two algebraic expressions are equivalent by combining like terms and using the distributive property.

Interpreting linear expressions

Any expression (mathematical or otherwise) has meaning. Help us match the linear expression to the meaning options given. In some cases, more than one meaning may apply.

Division by zero

Sal uses algebraic reasoning to tackle the problems of dividing by zero.

Get a Reminder

Not ready to enroll yet? We'll send you an email reminder for this course

Send to:

Khan Academy

Rating Not enough ratings
Length 10 segments
Starts On Demand (Start anytime)
Cost Free
From Khan Academy
Download Videos On all desktop and mobile devices
Language English
Subjects Mathematics
Tags Math Algebra I

Get a Reminder

Get an email reminder about this course

Send to:

Careers

An overview of related careers and their average salaries in the US. Bars indicate income percentile.

Hons Algebra and Hons Calculus Teacher $42k

Pre-Algebra Math Tutor $42k

College Algebra Tutor $55k

Anatomy & Physiology, Algebra Tutor $55k

Regional Instructor College Algebra Consultant $55k

Teach for America Algebra Teacher $59k

Adjunct Algebra Instructor $60k

Assistant Algebra teacher, Acclaim Program $65k

Algebra Workshop Instructor $66k

Algebra teacher, Acclaim Program $98k

Brand Expressions Leader, US Brand Team $129k

Brand Expressions Leader, US Brand Team $129k

Write a review

Your opinion matters. Tell us what you think.

Khan Academy

Rating Not enough ratings
Length 10 segments
Starts On Demand (Start anytime)
Cost Free
From Khan Academy
Download Videos On all desktop and mobile devices
Language English
Subjects Mathematics
Tags Math Algebra I

Similar Courses

Sorted by relevance

Like this course?

Here's what to do next:

  • Save this course for later
  • Get more details from the course provider
  • Enroll in this course
Enroll Now