This is the last of the series of factoring. The “hard trinomial” is defined as: ax^2 + bx + c, where a≠1 and “a” is not a factor of BOTH “b” and “c”. Last week, one method (decomposition) was shown, this week we provide two videos on another method, “triple play”. The two videos are [...]

Here, Icosa teaches Dodeca how to unwrap a type 1 equation. I define a “type 1″ equation as one where the unknown, or variable, appears only once. They can go from simple, to quite complex, but this “table” method can solve them all.  Please click on the comic strip to enlarge if necessary.

Octa tells Hecta a little story to explain to him what algebra is.  Click on the comic strip to enlarge if needed.

Some short, but fun, puzzles for all levels. Please click on the file name below to see the pdf file.
Four Puzzles To Try

When you subtract a number from the number that has the the same digits in a reverse order, something neat happens. Read the file below by clicking on its name to see what it is that is neat, and of course, why it works.
Reverse Digits Trick

Here is a short look at how a bit of knowledge of probability can make a “boring” game exciting again. Please click on the file name below to see the pdf file.
Probability and Monopoly

A great mathematical “amateur”, who only did mathematics in his spare time, had great breakthroughs in Probability, Number Theory and even Calculus. Never, or rarely, publishing, his legacy left a great puzzle to future mathematicians. Read on by clicking on the file name below to see the pdf file.
Fermat, Probability and a Famous “Last” Theorem

I define the “hard” trinomial as a trinomial in the form of ax^2 + bx + c, where a ≠ 1 and “a” is not a factor of BOTH “b” and “c”.  There are many ways to do this, I will show you two methods (a) decomposition, 2 videos, this week and (b) triple play, [...]

Here, Icosa and Dodeca discuss how to work with two or more events to produce a probability. The probability of rolling two dice at a time are used to illustrate.  Please click on the comic to enlarge if needed.

Last week, Hexa had some problems to work out. We see the answers, the working (eventually!) and how Hexa got tricked on one of the questions. Please click on the comic to enlarge if necessary.