Geometry is a time-honored branch of mathematics rooted in the teachings of Pythagoras, Euclid, and Archimedes. This course offers a comprehensive introduction to Euclidean geometry, including foundational concepts such as definitions, postulates, and theorems. Students will explore line and angle relationships, parallel lines, congruent and similar triangles, polygons, circles and arcs, and the Pythagorean Theorem.
The course also covers measurement of perimeter, area, and volume in both two and three dimensions, and introduces advanced topics such as coordinate geometry, spatial geometry, basic constructions, and introductory trigonometry.
Most Cool Math Guy (formerly Chalk Dust) video programs are based on textbooks published by the College Division of a leading educational publisher. These textbooks—used for Basic Math, Prealgebra, Algebra 1, and Algebra 2—align well with high school-level content and are frequently adopted in college non-credit prep courses.
Geometry, however, is an exception. The textbook used for this course contains more advanced vocabulary and content than is typically found in standard high school texts. At the time of video production, it was the only suitable geometry textbook available.
To better align the course with traditional high school expectations:
Some chapters and selected sections are omitted
Custom worksheets are included to reinforce key topics and simulate a high school curriculum more accurately
The student begins by watching a video lesson (typically 30–50 minutes long), then starts the corresponding textbook assignment.
The student pauses at the end of their scheduled math time for the day.
On the following day, the student continues the assignment. A third day may be needed to complete the work—and that’s okay.
After finishing a chapter (or midway through), the student completes a practice test, followed the next day by the chapter test. Parents should administer both.
The process repeats with the next section until the course is completed.
Support is available in several forms when students or parents encounter difficulties:
Re-watch the video lesson for clarification
Refer to similar examples in the textbook
Review the problem in the solutions manual
Submit a question through the Cool Math Guy website—responses typically arrive within 24 hours
We understand that questions can come up, especially in the beginning. Personal support is available via text, email, or phone. We’re here to help both parents and students every step of the way.
Textbook Recommendations
Below are the recommended textbook and solutions manual for this course. Both correlate directly with the video instruction. Used copies can be found online at affordable prices.
Note: The textbook includes answers to selected homework problems. The solutions manual provides step-by-step explanations and is helpful, though not essential.
Textbook Recommendation
Elementary Geometry, 6th Edition by Alexander
Textbook ISBN: 1-285-19569-8
Buy on GetTextbooks
Solutions Manual ISBN: 1-285-19681-3
Buy on GetTextbooks
Practice Tests, Tests, and Answer Keys
All assignments and testing materials are available to subscribers through a password-protected link.
Annual Flat Rate: $150 for One Year of Access
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$150.00 for 1 year