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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, 3dimensional geometry, transformations, analytic geometry, basic trigonometry, geometric proof, and more.This course is University of California ag approved for all instances starting after April 15, 2016. Click here for more details. 
24 weeks 
24 weeks ARE YOU READY? DO YOU NEED THIS? 
Schedule
Friday
Apr 22  Sep 30 
7:30  9:00
PM ET
Apr 22  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 
Achilleas Sinefakopoulos 
$460
$517 w/books

$460
FULL
With Books $517

Friday
May 27  Nov 4 
7:30  9:00
PM ET
May 27  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 
Heather Finotti 
$480
$537 w/books

$480
With Books $537

Monday
Jun 6  Dec 5 
7:30  9:00
PM ET
Jun 6  Dec 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 
Heather Finotti 
$480
$537 w/books

$480
With Books $537

Tuesday
Jun 7  Nov 15 
7:30  9:00
PM ET
Jun 7  Nov 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 
Achilleas Sinefakopoulos 
$480
$537 w/books

$480
With Books $537

Thursday
Jun 23  Dec 8 
7:30  9:00
PM ET
Jun 23  Dec 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 
Tim Black 
$480
$537 w/books

$480
With Books $537

Wednesday
Aug 3  Feb 1 
7:30  9:00
PM ET
Aug 3  Feb 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 
Joshua Zucker 
$480
$537 w/books

$480
FULL
With Books $537

Thursday
Sep 22  Mar 23 
7:30  9:00
PM ET
Sep 22  Mar 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 
Achilleas Sinefakopoulos 
$480
$537 w/books

$480
ENROLL
With Books $537

Monday
Oct 10  Apr 10 
7:30  9:00
PM ET
Oct 10  Apr 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 
Kevin Carlson 
$480
$537 w/books

$480
ENROLL
With Books $537

Friday
Nov 11  May 12 
7:30  9:00
PM ET
Nov 11  May 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 
Heather Finotti 
$480
$537 w/books

$480
ENROLL
With Books $537

Spring 2017  This course will be offered in Spring 2017. Click here to join our mailing list to be notified when the course schedule is available. 
AoPS Holidays
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 posttest, 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 710, including topics such as similar
triangles, congruent triangles, quadrilaterals, polygons, circles, funky
areas, power of a point, threedimensional geometry, transformations, introductory trigonometry, and
more.
