Introduction to Geometry Online Math Course

Introduction to Geometry

Fundamentals of geometry, including angles, triangle similarity and congruence, complicated area problems, mastering the triangle, special quadrilaterals, polygons, the art of angle chasing, power of a point, 3-dimensional geometry, transformations, analytic geometry, basic trigonometry, geometric proof, and more.

24 weeks

Diagnostics

ARE YOU READY? DO YOU NEED THIS?

Documents

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

Schedule

Monday
Jan 7 - Jun 24
7:30 - 9:00
PM ET
Jan 7 - Jun 24
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
$545
$606 w/books
$545
With Books $606
Friday
Jan 25 - Jul 5
7:30 - 9:00
PM ET
Jan 25 - Jul 5
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
$545
$606 w/books
$545
With Books $606
Wednesday
Feb 6 - Jul 17
7:30 - 9:00
PM ET
Feb 6 - Jul 17
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
$545
$606 w/books
$545
With Books $606
Tuesday
Feb 19 - Jul 30
7:30 - 9:00
PM ET
Feb 19 - Jul 30
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
$545
$606 w/books
$545
With Books $606
Thursday
Mar 7 - Aug 22
7:30 - 9:00
PM ET
Mar 7 - Aug 22
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
$545
$606 w/books
$545
With Books $606
ENROLL
Monday
Apr 8 - Sep 30
7:30 - 9:00
PM ET
Apr 8 - Sep 30
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
$545
$606 w/books
$545
With Books $606
ENROLL
Friday
Apr 26 - Oct 4
7:30 - 9:00
PM ET
Apr 26 - 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
$545
$606 w/books
$545
With Books $606
ENROLL
Thursday
May 16 - Oct 31
7:30 - 9:00
PM ET
May 16 - Oct 31
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
$545
$606 w/books
$545
With Books $606
ENROLL
Wednesday
May 29 - Nov 6
7:30 - 9:00
PM ET
May 29 - Nov 6
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
$545
$606 w/books
$545
With Books $606
ENROLL
Friday
Jun 14 - Nov 22
7:30 - 9:00
PM ET
Jun 14 - Nov 22
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
$545
$606 w/books
$545
With Books $606
ENROLL
Monday
Jun 24 - Dec 16
7:30 - 9:00
PM ET
Jun 24 - Dec 16
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
$545
$606 w/books
$545
With Books $606
ENROLL
Tuesday
Jun 25 - Dec 10
7:30 - 9:00
PM ET
Jun 25 - Dec 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
$545
$606 w/books
$545
With Books $606
ENROLL
Wednesday
Aug 14 - Feb 12
7:30 - 9:00
PM ET
Aug 14 - Feb 12
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
$545
$606 w/books
$545
With Books $606
ENROLL
Thursday
Aug 29 - Feb 27
7:30 - 9:00
PM ET
Aug 29 - Feb 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
$545
$606 w/books
$545
With Books $606
ENROLL
Fall 2019This course will be offered in Fall 2019. Click here to join our mailing list to be notified when the course schedule is available.

AoPS Holidays

There are no classes May 27, July 4, or September 2.

Who Should Take?

This is the most challenging of our Introduction series of classes. We recommend that students complete our Introduction to Algebra B course, or are able to pass the Introduction to Algebra B post-test, prior to taking Introduction to Geometry.

Lessons

Lesson 1 Angles
Lesson 2 Triangle Angles and Congruent Triangles
Lesson 3 Isosceles & Equilateral Triangles, Perimeter, and Area
Lesson 4 Similar Triangles
Lesson 5 Similar Triangles and Right Triangles
Lesson 6 More Right Triangles!
Lesson 7 Special Parts of a Triangle
Lesson 8 Special Parts of a Triangle, Continued!
Lesson 9 Quadrilaterals
Lesson 10 More Quadrilaterals
Lesson 11 Polygons
Lesson 12 Geometric Inequalities
Lesson 13 Introduction to Circles
Lesson 14 Circles and Angles
Lesson 15 Tangents
Lesson 16 Power of a Point
Lesson 17 3D Geometry Part 1
Lesson 18 3D Geometry Part 2
Lesson 19 Transformations
Lesson 20 Analytic Geometry
Lesson 21 More Analytic Geometry
Lesson 22 Basic Trigonometry
Lesson 23 Problems!
Lesson 24 More Problems!

Required Textbook

Introduction to Geometry
By Richard Rusczyk
A full course in challenging geometry for students in grades 7-10, including topics such as similar triangles, congruent triangles, quadrilaterals, polygons, circles, funky areas, power of a point, three-dimensional geometry, transformations, introductory trigonometry, and more.

Not only did Introduction to Geometry help me become a better math student, it also helped me to think more abstractly and look for multiple roads to solve a problem. This class challenged me to become a better thinker.

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