Today, we have a neat little game that is easy to play, and that has a strategy to always assure a win. The strategy will be shown next week, meanwhile, have fun trying this out for a week. Please click on the file name below to see the pdf file.
Complete the Square Game

Using a little bit of arithmetic, one can see how to, and why it works, multiply quickly by 25 in your head. Please click on the file name below to see the pdf file.
A Quick Way to Multiply by 25

Using grade 9 and grade 10 trigonometry and similar triangles I designed the basement footings and floor joists for a geodesic dome. To see how, click on the file name below to see the pdf file.
Using Trigonometry and Similar Triangles to Design a Geodesic Dome Basement

Johann Karl Friedrich Gauss was one of the world’s greatest mathematicians. Here is a short look at this remarkable man. Please click on the file name below to see the pdf file.
Gauss, One of the Top Three Mathematicians

There are two formulas for working out problems with arithmetic or geometric sequences. Here they are, plus some worked out examples for you.  Please click on the file name below to see the pdf file.
Formulas and Examples for Sequences

When each term is multiplied by the same number, called the ratio, over and over, we get a geometric sequence. They can grow, or shrink, very quickly. To put it into perspective, Icosa uses some pennies and a chess board to illustrate. Please click on comic if you need to enlarge.
 

A lot of Mathematics is observing patterns. When we gave you some examples of sequences last Monday, there were some neat patterns that occur, let’s look at two of them. Please click on the comic below to enlarge if needed.
 

A neat little puzzle today, plus of course the answer to last week’s “weird” puzzle. Please click on the file name below to see the pdf file.
Make 4 Litres Math puzzle

Having looked at sequences this week, and noting the Fibonacci sequence a number of times, here is a neat little math trick using the Fibonacci sequence. Of course, you can’t have a Math trick without learning why it works, so have added that as well. Please click on the file name below to see the [...]

An Archimedean Spiral can be formed between successive joined golden rectangles. But how do you set this up, and how do you know the rectangles have sides in the golden ratio? Please click on file name below to see the pdf file. 
Rationalizing Denominators to get Golden Ratios