Archive Listing
Sunday, March 8, 2009 – The Game of 31
07/03
This is the first of our math games and puzzles series. The game can be played with cards, or merely by writing on paper or the blackboard (or whiteboard). Your mission is to discover the strategy to always assure yourself of a win.
The Game of 31
Saturday, March 7, 2009 – Math Trick # 1 – Multiplying and Dividing by 11 in Your Head
06/03
Put down those calculators! Using these mental mathematics tricks, you can free yourself from calculator overuse!! Today’s math trick is multiplying by 11 and dividing by 11. Included is a proof for why the dividing by 11 works. Click picture below to enlarge if you need to.
Friday, March 6, 2009 – Using Pythagorean Theorem and Patterns in Carpentry
05/03
This session shows how Pythagorean triples occur from the Pythagorean Theorem, and then illustrates the theorem in carpentry (house building). It also introduces you to a new relationship with right triangles, that I have nicknamed “Tetra’s Theorem”. Click below to see the post.
Using Pythagorus and Pythagorean Triples in Carpentry
Thursday, March 5, 2009 – Plato and the Platonic Solids
04/03
For today’s slice of history we visit Plato and his Platonic solids: Icosahedron, Dodecahedron, Octahedron, Hexahedron and Tetrahedron. You will recognize these as our characters from the “Hedron” family that guide us on many of the days.
Wednesday, March 4, 2009 – Number Systems – Irrational and Imaginary Numbers
03/03
Today’s session introduces you to the invention of the irrational numbers and the imaginary numbers. We also define the real numbers and the complex numbers as well. Pythagoras, Euclid, Euler and Gauss are some of the mathematicians we will meet on today’s hike. Click on the line below to see today’s session.
Invention of the Irrational [...]
Tuesday, March 3, 2009. Number Systems – The Integers and the Rational Numbers
02/03
Happy “Square root day”!! We write today as 3/3/09, and 3 times 3 equals 9! How many of these days are in a century?
Today’s session involves a look at the different number systems we use and why they were invented. On Monday we did the Natural and the Whole numbers. Today, on Tuesday, we will [...]
Monday, March 2, 2009 – Number Systems – The Natural Numbers and the Whole Numbers
01/03
Today’s session involves a look at the different number systems we use and why they were invented. On Monday we will do the Natural and the Whole numbers. On Tuesday, we will look at the Integers and the Rational numbers. And on Wednesday we will look at the Irrational and the Imaginary number systems. If the [...]
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