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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. Required Text: Introduction to Geometry	24 weeks Diagnostics ARE YOU READY? DO YOU NEED THIS? Documents SYLLABUS
24 weeks ARE YOU READY? DO YOU NEED THIS? SYLLABUS

Schedule

Wednesday Jan 4 - Jun 14	7:30 - 9:00 PM ET Jan 4 - Jun 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	Radu Andrei Cebanu	$670 (~$28/week) $735 w/books	$670 (~$28/week) With Books $735 CLOSED
Friday Jan 20 - Jun 30	4:30 - 6:00 PM ET – Jan 20 - Jun 30 4:30 - 6:00 PM Eastern 3:30 - 5:00 PM Central 2:30 - 4:00 PM Mountain 1:30 - 3:00 PM Pacific Click here to see more time zones	Maria Mendes	$670 (~$28/week) $735 w/books	$670 (~$28/week) With Books $735 ENROLL
Tuesday Jan 31 - Jul 18	7:30 - 9:00 PM ET Jan 31 - Jul 18 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	$670 (~$28/week) $735 w/books	$670 (~$28/week) With Books $735 ENROLL
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) With Books $735 ENROLL
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) With Books $735 ENROLL
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) With Books $735 ENROLL
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) With Books $735 ENROLL
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) With Books $735 ENROLL
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) With Books $735 ENROLL
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) With Books $735 ENROLL
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	TBA	$670 (~$28/week) $735 w/books	$670 (~$28/week) With Books $735 ENROLL
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	TBA	$670 (~$28/week) $735 w/books	$670 (~$28/week) With Books $735 ENROLL
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) With Books $735 ENROLL
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) With Books $735 ENROLL
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) With Books $735 ENROLL

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

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.

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