If you have taken Prealgebra, you are ready to code!  Join our Intro to Python class starting this Monday!

Need Help?

Need help finding the right class? Have a question about how classes work?

Click here to Ask AoPS!

Introduction to Algebra B

(Formerly called Algebra 2) Fundamental concepts of algebra, including quadratics, systems of equations, clever factorizations, complex numbers, functions, graphing, sequences and series, special functions, exponents and logarithms, and more.

16 weeks

Diagnostics

ARE YOU READY? DO YOU NEED THIS?

Documents

SYLLABUS
16 weeks ARE YOU READY? DO YOU NEED THIS? SYLLABUS  

Schedule

Thursday
Mar 14 - Jun 27
7:30 - 9:00
PM ET
Mar 14 - Jun 27
7:30 - 9:00 PM Eastern
6:30 - 8:00 PM Central
5:30 - 7:00 PM Mountain
4:30 - 6:00 PM Pacific
Click here to see more time zones
$470 (~$30/week)
$537 w/books
$470 (~$30/week)
With Books $537
CLOSED
Wednesday
Mar 27 - Jul 10
7:30 - 9:00
PM ET
Mar 27 - Jul 10
7:30 - 9:00 PM Eastern
6:30 - 8:00 PM Central
5:30 - 7:00 PM Mountain
4:30 - 6:00 PM Pacific
Click here to see more time zones
$470 (~$30/week)
$537 w/books
$470 (~$30/week)
With Books $537
CLOSED
Saturday
Apr 13 - Aug 3
1:00 - 2:30
PM ET  
Apr 13 - Aug 3
1:00 - 2:30 PM Eastern
12:00 - 1:30 PM Central
11:00 - 12:30 PM Mountain
10:00 - 11:30 AM Pacific
Click here to see more time zones
$470 (~$30/week)
$537 w/books
$470 (~$30/week)
With Books $537
ENROLL
Sunday
May 5 - Aug 25
7:30 - 9:00
PM ET
May 5 - Aug 25
7:30 - 9:00 PM Eastern
6:30 - 8:00 PM Central
5:30 - 7:00 PM Mountain
4:30 - 6:00 PM Pacific
Click here to see more time zones
$470 (~$30/week)
$537 w/books
$470 (~$30/week)
With Books $537
ENROLL
Tuesday
May 21 - Sep 3
7:30 - 9:00
PM ET
May 21 - Sep 3
7:30 - 9:00 PM Eastern
6:30 - 8:00 PM Central
5:30 - 7:00 PM Mountain
4:30 - 6:00 PM Pacific
Click here to see more time zones
$470 (~$30/week)
$537 w/books
$470 (~$30/week)
With Books $537
ENROLL
Wednesday
Jun 5 - Sep 18
7:30 - 9:00
PM ET
Jun 5 - Sep 18
7:30 - 9:00 PM Eastern
6:30 - 8:00 PM Central
5:30 - 7:00 PM Mountain
4:30 - 6:00 PM Pacific
Click here to see more time zones
$470 (~$30/week)
$537 w/books
$470 (~$30/week)
With Books $537
ENROLL
Friday
Jun 14 - Oct 4
7:30 - 9:00
PM ET
Jun 14 - Oct 4
7:30 - 9:00 PM Eastern
6:30 - 8:00 PM Central
5:30 - 7:00 PM Mountain
4:30 - 6:00 PM Pacific
Click here to see more time zones
$470 (~$30/week)
$537 w/books
$470 (~$30/week)
With Books $537
ENROLL
Sunday
Jun 23 - Oct 13
7:30 - 9:00
PM ET
Jun 23 - Oct 13
7:30 - 9:00 PM Eastern
6:30 - 8:00 PM Central
5:30 - 7:00 PM Mountain
4:30 - 6:00 PM Pacific
Click here to see more time zones
$470 (~$30/week)
$537 w/books
$470 (~$30/week)
With Books $537
ENROLL
Monday
Jul 15 - Nov 4
7:30 - 9:00
PM ET
Jul 15 - Nov 4
7:30 - 9:00 PM Eastern
6:30 - 8:00 PM Central
5:30 - 7:00 PM Mountain
4:30 - 6:00 PM Pacific
Click here to see more time zones
$470 (~$30/week)
$537 w/books
$470 (~$30/week)
With Books $537
ENROLL

AoPS Holidays

There are no classes May 25 ‐ 27, July 4, August 30 ‐ September 2, November 25 ‐ December 1, and December 21, 2024 ‐ January 3, 2025.

Who Should Take?

Students are ready for this class if they have mastered square roots and fractional exponents, order of operations, linear equations and inequalities, ratio, and proportion. We recommend that students have experience with factoring quadratics prior to taking this course.

Please note: Our Algebra sequence will likely not match up exactly with your school's. Most students who have completed our Introduction to Algebra A course or a high-level honors Algebra 1 course in school are ready for this class. However, we encourage students to take our Introduction to Counting and Probability class before beginning this course. Visit our Recommendations page for help in choosing the right class.

Lessons

Lesson 1 Factorization
Lesson 2 Quadratics and Complex Numbers
Lesson 3 Completing the Square and the Quadratic Formula
Lesson 4 Graphing Quadratics
Lesson 5 Quadratic Inequalities
Lesson 6 Optimizing Quadratics and AM-GM Inequality
Lesson 7 Functions
Lesson 8 Composition and Inverses
Lesson 9 Graphing Functions
Lesson 10 Polynomials
Lesson 11 Exponential Functions
Lesson 12 Special Functions Part 1
Lesson 13 Special Functions Part 2
Lesson 14 Sequences & Series Part 1
Lesson 15 Sequences & Series Part 2
Lesson 16 Challenging Problems Day

Required Textbook

Introduction to Algebra
By Richard Rusczyk
A thorough introduction for students in grades 6-9 to algebra topics such as linear equations, ratios, quadratic equations, special factorizations, complex numbers, graphing linear and quadratic equations, linear and quadratic inequalities, functions, polynomials, exponents and logarithms, absolute value, sequences and series, and more!
Related courses: Introduction to Algebra A and Introduction to Algebra B

I can say the class has prepared me substantially for mathematical studies and competitions in the future and provided a well-constructed introduction to higher-level algebra. I enjoyed interacting with the teacher on an intellectual level while he taught the class in an fun and creative way. In addition, the challenging problems students received weekly to complete as homework enhanced our problem solving skills. Overall, this class has been an amazing experience for me, and I can't wait to see what AoPS has in store next!