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Math Mammoth Geometry 3

Math Mammoth Geometry 3 math book cover
62 pages
(includes answers)

Sample pages (PDF)
Transformations in the Coordinate Grid
Similar Figures and Scale Ratios
Basic Compass and Ruler Constructions

Prices & ordering

PDF download $3.20

(credit cards, Paypal, check, cash, PO, wire transfer, money order; Kagi shopper help)

(credit cards, Paypal)

Printed copy $9.30, b&w

(credit cards, Paypal, PO)

Math Mammoth Geometry 3 can be used after the student has finished Math Mammoth Geometry 1, and is suitable for grades 5-7. This book does not require the students to calculate area or volume, and that is why it is not necessary to study Math Mammoth Geometry 2 (which deals with those topics in depth) before this book.

We start out with basic angle relationships, such as adjacent angles (angles along a line), vertical angles, and corresponding angles (the last only briefly). Classifying triangles according to both angles and sides and the angle sum of a triangle are our next topics, giving students lots of opportunities for drawing exercises. The lesson Angles in Polygons is a sequel to studying angles in a triangle.

The next set of lessons deals with congruent and similar figures. The first lessons in this sesction are simple enough to be accessible even to 4th-5th grade students. The lesson Similar Figures and Scale Ratio uses the concepts of ratio and proportion, and is meant for 6th-7th graders.

The last section of this book teaches some basic compass-and-ruler constructions. These constructions were practiced and studied a lot by the ancient Greeks. In fact, the mathematics of ancient Greece centered around geometry. Most students will probably enjoy doing the drawing problems in these lessons on blank paper instead of in the worktext.

Note: At this time (2014), this book is in "beta" stage. It will be revised with more lessons (such as about The Pythagorean Theorem) probably in early 2015.

Better Yet - Bundle Deals!

Blue Series - $120 (download) or $125 (CD)
Blue Series for grades 1-3 - $45 (download)
Blue Series for grades 4-7 - $75 (download)

Light Blue Series - $162.50 (download) or $167.50 (CD)
Light Blue Series, grades 1-3 - $75 (download)
Light Blue Series, grades 4-7A - $87.50 (download)

Golden/Green Series - $65 (download) or $70 (CD)
All Inclusive Bundle - $225 (download) or $230 (CD)
"Everything" Bundle - $289 (download only)

Learn more about these Math Mammoth bundles!

*BONUS*: Buy any bundle listed above, and get the fully upgraded Soft-Pak software with more features and options for FREE (includes 4 math, 1 language arts, 2 testing programs).

How and where to order

You can buy Math Mammoth books at:

  • Kagi store - all of the downloads and CDs. I maintain several order pages at Kagi:

    Kagi accepts all major credit cards, Paypal (USD), checks, cash, money orders, purchase orders, wire transfers, TrialPay, and even cash. Read more about the payment methods here. Please see Kagi Shopper Help for any other questions about the ordering process.

    After completing the order at Kagi, you will see the download links on the receipt page. You will also receive an email with download links for each book you bought, or for a zip file for the packages. You click on the links and download the books to your computer's hard drive.

    In case of any problems with the download, you can always email me, and I can email the books to you directly. My contact info will be in the email you receive.

  • carries all Blue, Golden, and Light Blue series books as downloads. They accept credit cards and Paypal. You will be able to download the products immediately upon the purchase, and also return to your account at CurrClick to redownload.

  • Lulu offers printed copies for the Blue, Golden, and Light Blue series books.

  • Rainbow Resource carries printed copies for the Light Blue series books, plus Light Blue CDs. You can also find links to Rainbow Resource on the individual product pages on this site.

By purchasing any of the books, permission IS granted for the teacher (or parent) to reproduce this material to be used with his/her students in a teaching situation; not for commercial resale. However, you are not permitted to share the material with another teacher.

In other words, you are permitted to make copies for the students/children you are teaching, but not for other teachers' usage.

Math Mammoth books are PDF files. You will need Adobe Reader to view them, including if you use a Mac or Linux. You can try other PDF viewers, but they seem to either omit or mess up some of the images.

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This way, you'll have time to digest the information over one week, plus an opportunity to ask me personally which book would be right for your child or students.

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