Friday, December 12, 2014

May 2013: Fibonacci, Clocks, Math Junkies, Marathons, and Area Code

(From May 31, 2013)

"Area Code"

Find the weekly math comic at

(from May 24, 2013)


Red e, Set, Go!!

(from May 17, 2013)

"Doing Lines"

Math Junkies, just say know!

Check out Diagonals and Polygons in the spare parts section at

(from May 10, 2013)

Now, it's time for 3 clock angle questions!

1) What is the measure of the angle formed by the hands of a clock at 5:00?
2) What is the measure of the angle formed by the hands of a clock at 7:12?
3) Challenge:  If it is 12:02, when is the next time the minute hand will cross the hour hand?  (round your answer to the nearest second)..
(Note: the answer is not 1:05:00)

SOLUTIONS are here...

(from May 8, 2013)

"Fibonacci Day"

Next Wednesday is 5-8-13, a "Fibonacci Day" --- (assuming such a thing exists)... In honor of Leonardo of Pisa --- Fibonacci, the Mathplane weekly cartoon features his

How familiar are you with sequences?
Answer the following:
Assume 3 and 9 begin each sequence. What is the 3rd term in each:
a) Arithmetic sequence: 3, 9, ? ...
b) Geometric sequence: 3, 9, ? ...
c) Fibonacci sequence: 3, 9, ? ...

SOLUTIONS are here...

And, learn more about Sequences and Series.....

Tuesday, December 9, 2014

April 2013: Andy Warhol, Taxes, SohCahToa, Power, and exponents

 (from April 26, 2013)

"Math Electrician"

Can you answer these 3 math 'power' questions?

 The power answers are in the spare parts section

 (from April 19, 2013)

"In(side) a Name"

Trig question:   What are the angle measures of a triangle with sides 3, 4, and 5?

ANSWER is here

(from April 15, 2013)

"A Taxing Process"


 Uncle(ar) Sam at the IRS...

Try the tax relief hidden math puzzle

(from April 5, 2013)

"15's Minute of Fame"

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