Enjoy Math with Free Downloads of our math CD-ROM, or of our Alligator Game

     Here's a free download from our math CD-ROM so you can try out a fascinating math game, and see how Trig, Algebra, Geometry, Numbers, Probability, and Topology can be taught in a way no book can duplicate.

Try these free downloads
and discover
how our CD-ROM makes math fun and fascinating.

Use Trig to Stretch a Skyscraper.
Compute How Far you can See
with Algebra.
Our Math Lab will Help you Find Angles in Circles.
(Click here to download now.)

Here are the ten samples from our Math CD-ROM. Download them, and forever change your ideas about Mathematics.

Paint a Map
How many colors would you need to paint any map, if you had to follow the rule, 'Countries sharing a common border must be painted different colors' ?

Plan a trip
Here you'll look at a map of the U.S., will be given several trips to make (each requiring that you take various highways to visit different cities), and will be asked to find a route for each trip that passes through all the cities but uses each highway just once. It's not as easy as it looks!
Visit a strange land This example takes you to an amazing country where everyone is flatter than a pancake. It is a land that exists in only two dimensions.

Stretch a skyscraper
By changing the height of this skyscraper, you can learn a little Trigonometry.
Color Soccer Jerseys
If you are to design a soccer jersey for your team, and it must use only two colors, how many different designs could you come up with? How many could you find if you must use only three colors? Four colors?
Add the Angles
You visit a Mathematical Laboratory, and are given a triangle. With your mouse, you can change the shape of the triangle any way you want, and as it changes you will see the size of each of its three angles change. From this experiment, can you guess a famous rule about triangles that was proven many centuries ago by a Greek named Euclid?
Six Machines
Here you'll observe the operation of six strange machines, and will find out what they all have in common.
How Far Can We See?
Do you believe the Earth is round? Why? One answer may be, that you've seen photos of the Earth taken from out in space. But before it was possible to take such pictures, how did people guess the Earth is round?
The Parabolic Pool Table
Most pool tables have straight sides--but not this one. One of its sides has the curved shape of a parabola. What do you suppose this table has in common with a flashlight and a satellite antenna?
Angles in Circles
In the Geometry section of the Mathematical Laboratory, you'll be able to change the size of a circle, and of the angle that fits inside it. Here's another rule you may be able to guess, if you're very sharp!

The very best way to see how our CD-ROM makes math fun and easy
is to download and play with these ten samples.

(Click here to download now.)

The Alligator Game is also part of Gnarly Math. When you play, your object will be to cross a swamp full of man-eating alligators. To win the game, you must deduce where the beasts are by exploring the swamp and poking likely hiding places with your stick. In the example on the right, you started at the gray square at the bottom, and have so far located three alligators. You must reach the top row to win.
To enjoy the samples or the game, you'll need a computer which runs under Windows--either a PC, or a Mac with Windows hardware or software.
     To see the samples, click the file name here -- gnarly.exe -- to start downloading. File size is about 1.7 million bytes. To play the game, click the file name here -- aligator.exe-- to start downloading. The file size is about 2.2 million bytes.
     When you click one or the other, you'll probably see a box which asks whether you want to 'run' or 'save' this file. Click 'run', and you'll be warned that 'the publisher could not be verified'. Click 'run' again and you'll be asked where you want the files unzipped to. Choose a folder (for example c:/temp or c:/gnarly) and click 'unzip'. You'll get the message '14 files unzipped successfully'.
     Now go the the folder where you've unzipped the files (c:/temp or c:/gnarly) and click on the file named Gnarsamp or the file names Aligator. The program will now run and you can see the samples or play the game.
     If you click first gnarly.exe and then aligator.exe and follow the above rules twice, you'll have both sample and game in the same folder.
     If you have trouble downloading, or have any questions or comments on the examples, or the game, please use the "Comments" section further down this page.
     The game and the ten examples are all from Solid Gold Gnarly Math, which is the only CD-ROM we've found which includes six main branches of Math -- Algebra, Geometry, Trig, Probability, Numbers, and Topology.
As long as you're downloading, look at these
FREE BOOKMARKS.

Readers of all ages.
Librarians.
Click the red button and download these unique, free bookmarks.

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or our fabulous Ebook, Now.

Get the CD from which you downloaded these examples.
Our CD-ROM teaches all six branches of math for only $5.00 each.      Order it now by clicking the Paypal button just below.

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     NOTE: You don't need a Paypal account to order our CD -- you may pay using your own credit card.
When you enter PayPal, be sure to enter an amount of either $29.95, $31.95, or $125, depending on which choice you made!
     This illustration, from the Numbers section of our CD-ROM, is a humorous rendition of a part of a computer known as a 'flip-flop'.      The CD comes with a 5-year moneyback guarantee.
      If you don't like it for any reason, return it and we'll refund the full purchase price. You can't lose! (The guaranted doesn't apply, however, to the purchase of five CD's for $125)
     Our CD runs on any version of Windows, and on the new Macs having the Windows partition.
     Order it by clicking the Paypal button just above
     If you'd like to learn more about Solid Gold Gnarly Math, click here: The Historical, Humorous Math Newspaper, or
The Complete Gnarly Gnews      Order our 688-page Ebook now by clicking the Paypal button just below.

PDF file emailed.

     NOTE: You don't need a Paypal account to order our CD. Just use your own credit card. When you enter PayPal, please enter the $7 price.
     We've been publishing our free math newsletter, the Gnarly Gnews, for more than eight years now.
     Here's an example from one issue.
A Lady Astronaut is an Engineer,
     All these 48 issues, indexed, are available and can be yours for only $7.00.
     The book is in PDF (Adobe Reader) format, and can be read by both PC's and Macs.
     The zip file contains about 3.6 megabytes.
     Order it by clicking the Paypal button just above.

     If you'd like to see the cover page of our Ebook, and learn more about this cool and humorous introduction to math and to history, click here:

Comments      If you have any trouble downloading the above files, or if you'd like to comment on the game or samples or anything else related to our site, you can tell us simply by clicking here.
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The very best way to see how our CD-ROM makes math fun and easy is to download and play with these ten samples.

(Click here to download now.)

The very best way to see how our CD-ROM makes math fun and easy
is to download and play with these ten samples.