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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. 
24 weeks 
24 weeks ARE YOU READY? DO YOU NEED THIS? 
Schedule
Monday Mar 9  Aug 24 
7:30  9:00
PM ET

Achilleas Sinefakopoulos 
$440
$497 w/books

$440
ENROLL
With Books $497


Wednesday Feb 25  Aug 5 
7:30  9:00
PM ET

Daniel Kneezel 
$440
$497 w/books

$440
WAITLIST
With Books $497


Thursday Mar 12  Aug 20 
7:30  9:00
PM ET

Sam Elder 
$440
$497 w/books

$440
ENROLL
With Books $497


Monday Jun 1  Nov 16 
7:30  9:00
PM ET

TBA 
$460
$517 w/books

$460
ENROLL
With Books $517


Wednesday Jun 10  Nov 18 
7:30  9:00
PM ET

TBA 
$460
$517 w/books

$460
ENROLL
With Books $517


Thursday Jun 11  Nov 19 
7:30  9:00
PM ET

TBA 
$460
$517 w/books

$460
ENROLL
With Books $517


Friday Jun 5  Nov 20 
7:30  9:00
PM ET

TBA 
$460
$517 w/books

$460
ENROLL
With Books $517


Fall 2015  This course will be offered in Fall 2015. Click here to join our mailing list to be notified when the course schedule is available. 
AoPS Holidays
There are no classes on May 25, July 3, September 7, or November 2327.
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.
