Thursday, April 26, 2007

Quick Calculations

Foto is from a walk around campus with my new camera...

I did a search for “Quick Calculations” in prepping for a math workshop I am giving on Saturday and came across this book on Amazon… which I promptly bought, called:

Speed Mathematics: Secret Skills for Quick Calculation (Paperback)
by Bill Handley (Author)
"How well do you know your basic multiplication tables?..."

He says:

“People who excel at mathematics use better strategies than the rest of us; they are not necessarily more intelligent.

Speed Mathematics teaches simple methods that will enable you to make lightning calculations in your head–including multiplication, division, addition, and subtraction, as well as working with fractions, squaring numbers, and extracting square and cube roots. Here’s just one example of this revolutionary approach to basic mathematics:

96 x 97 =
Subtract each number from 100.

96 x 97 =
4 3

Subtract diagonally. Either 96—3 or 97— 4.
The result is the first part of the answer.

96 x 97 = 93
4 3

Multiply the numbers in the circles. 4 x 3 = 12.
This is the second part of the answer.

96 x 97 = 9312”

very cool!... I sent for the book…

Wednesday, April 25, 2007

its about time again...

At three minutes and four seconds after 2 AM on the 6th of May this year,the time and date will be 02:03:04 05/06/07. This will never happen again.

Tuesday, April 24, 2007

Isso é jeito de receber...

My Brazilian Father, mentor and friend Ubiratan D´Ambrosio sent this today. It was taken in Guarapuava, Paraná, Brasil. It is especially funny as Milton & I own a ´98 Fiat Uno in Brasil. This “family” name is a big company in the south of Brasil… every once in a while I see a big semi-truck with F#$K written diagonally in huge f%$*&g letters diagonally on both sides of it… hysterical!

Goggle search gets you to:

Endereço:ROD. SC 477 - KM "0", S/N
CEP:89460 000
Cidade:Canoinhas - SC
Telefone:(47) 36241811
Fax:(47) 36242361

An all my life I felt besieged by Orey as a last name (Oreo, O´Rey, Drey…). Travel is great… it opens ones eyes...

Sunday, April 22, 2007

I had a grand day out in my pickup... on the way to help out a friend move some stuff I stopped off at the Earth Day event at the CSUS campus. It was the sort of spring day that makes you glad to be alive… spectacular clouds, rain showers, flowers, clean, clear air all caressing this beautiful city.

Then after “All Things Considered” which I enjoyed as I walked around my yard a good friend... we will refer to her as “Santa Eda” came by with a flan and we had tea and talked…

Finished the evening watching the Discovery channel’s “Planet Earth”. My new camera arrives on Wednesday… I can only aspire to such amazing shots.

Picture here is my labyrinth in my back yard...

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