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Introduction to GeometryFundamentals 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 |
| 24 weeks ARE YOU READY? DO YOU NEED THIS? |
Schedule
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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 |
Xinke Guo-Xue |
$545
$606 w/books
|
$545
CLOSED
With Books $606
|
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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 |
Christian Hokaj |
$545
$606 w/books
|
$545
CLOSED
With Books $606
|
|
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 |
Jeffrey Hankins |
$545
$606 w/books
|
$545
FULL
With Books $606
|
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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 |
Kate Thompson |
$545
$606 w/books
|
$545
FULL
With Books $606
|
|
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 |
Eric Wofsey |
$545
$606 w/books
|
$545
ENROLL
With Books $606
|
|
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 |
Miles Dillon Edwards |
$545
$606 w/books
|
$545
ENROLL
With Books $606
|
|
Friday
Sep 13 - Mar 13 |
7:30 - 9:00
PM ET
Sep 13 - Mar 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 |
TBA |
$545
$606 w/books
|
$545
ENROLL
With Books $606
|
|
Sunday
Sep 15 - Mar 15 |
7:30 - 9:00
PM ET
Sep 15 - Mar 15
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 |
TBA |
$545
$606 w/books
|
$545
ENROLL
With Books $606
|
|
Tuesday
Sep 24 - Mar 24 |
7:30 - 9:00
PM ET
Sep 24 - Mar 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 |
TBA |
$545
$606 w/books
|
$545
ENROLL
With Books $606
|
|
Monday
Oct 7 - Apr 6 |
7:30 - 9:00
PM ET
Oct 7 - Apr 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 |
TBA |
$545
$606 w/books
|
$545
ENROLL
With Books $606
|
|
Wednesday
Nov 13 - May 13 |
7:30 - 9:00
PM ET
Nov 13 - May 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 |
TBA |
$545
$606 w/books
|
$545
ENROLL
With Books $606
|
|
Tuesday
Dec 3 - May 26 |
7:30 - 9:00
PM ET
Dec 3 - May 26
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 |
TBA |
$545
$606 w/books
|
$545
ENROLL
With Books $606
|
|
Thursday
Dec 5 - May 28 |
7:30 - 9:00
PM ET
Dec 5 - May 28
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 |
TBA |
$545
$606 w/books
|
$545
ENROLL
With Books $606
|
AoPS Holidays
There are no classes September 1–2, November 25–December 1, or December 21–January 3.
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
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Introduction to Geometry
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.
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