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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? SYLLABUS |
Schedule
|
Sunday
Feb 12 - Jul 30 |
7:30 - 9:00 PM ET
Feb 12 - 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 |
Achilleas Sinefakopoulos |
$670
(~$28/week)
$735 w/books
|
$670
(~$28/week)
FULL
With Books $735
|
|
Wednesday
Mar 8 - Aug 16 |
7:30 - 9:00 PM ET
Mar 8 - Aug 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 |
Andrea Knapp |
$670
(~$28/week)
$735 w/books
|
$670
(~$28/week)
ENROLL
With Books $735
3 spots left |
|
Friday
Mar 24 - Sep 1 |
7:30 - 9:00 PM ET
Mar 24 - Sep 1
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 |
Homero Gallegos |
$670
(~$28/week)
$735 w/books
|
$670
(~$28/week)
ENROLL
With Books $735
|
|
Thursday
Apr 6 - Sep 14 |
7:30 - 9:00 PM ET
Apr 6 - Sep 14
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 |
$670
(~$28/week)
$735 w/books
|
$670
(~$28/week)
ENROLL
With Books $735
|
|
Monday
May 1 - Oct 23 |
7:30 - 9:00 PM ET
May 1 - Oct 23
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 |
Dylon Chow |
$670
(~$28/week)
$735 w/books
|
$670
(~$28/week)
ENROLL
With Books $735
|
|
Sunday
May 14 - Nov 5 |
7:30 - 9:00 PM ET
May 14 - Nov 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 |
Homero Gallegos |
$670
(~$28/week)
$735 w/books
|
$670
(~$28/week)
ENROLL
With Books $735
|
|
Wednesday
May 31 - Nov 8 |
7:30 - 9:00 PM ET
May 31 - Nov 8
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 |
Maria Mendes |
$670
(~$28/week)
$735 w/books
|
$670
(~$28/week)
ENROLL
With Books $735
|
|
Tuesday
Jun 20 - Dec 19 |
7:30 - 9:00 PM ET
Jun 20 - Dec 19
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 |
Maria Mendes |
$670
(~$28/week)
$735 w/books
|
$670
(~$28/week)
ENROLL
With Books $735
|
|
Wednesday
Jul 5 - Dec 20 |
7:30 - 9:00 PM ET
Jul 5 - Dec 20
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 |
Eli Brottman |
$670
(~$28/week)
$735 w/books
|
$670
(~$28/week)
ENROLL
With Books $735
|
|
Sunday
Aug 6 - Feb 11 |
7:30 - 9:00 PM ET
Aug 6 - Feb 11
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 |
$670
(~$28/week)
$735 w/books
|
$670
(~$28/week)
ENROLL
With Books $735
|
|
Friday
Aug 11 - Feb 9 |
7:30 - 9:00 PM ET
Aug 11 - Feb 9
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 |
$670
(~$28/week)
$735 w/books
|
$670
(~$28/week)
ENROLL
With Books $735
|
|
Thursday
Aug 24 - Feb 22 |
7:30 - 9:00 PM ET
Aug 24 - Feb 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 |
TBA |
$670
(~$28/week)
$735 w/books
|
$670
(~$28/week)
ENROLL
With Books $735
|
| Fall 2023 | This course will be offered in Fall 2023. Click here to join our mailing list to be notified when the course schedule is available. | |||
AoPS Holidays
There are no classes May 27‐29, July 4, September 2‐4, October 31, November 20‐27, and December 21‐January 3, 2024.
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
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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