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Infinite Monkey Theorem

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
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on Wednesday, 30 March 2011
in Great Explanations

Teachable Moment: This wonderful thought experiment is a great way of exploring probabilities as they apply to multiple random events.  The mere fact that it has infused its way into popular culture is a testament to its ability to engage thinkers.

The infinite monkey theorem, originally posited by Emile Borel, states that a monkey pressing keys at random on a keyboard for an infinite amount of time would eventually type a finite text.

The probability of typing that text is straight forward:

Tags: Math

Maxwell's Demon

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
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on Tuesday, 29 March 2011
in Great Explanations

Teachable Moment: First, let's admit...it's a cool name... so cool, that rock bands chose it to have geek "cred."
But it's also a fascinating thought experiment that challenges a "law" of thermodynamics.

In 1867, James Clerk Maxwell pictured two chambers, A and B, each filled with gas at the same temperature and with a door between them. Theorists later had a demon open the door (without doing any work) to let the fastest-moving molecules pass from A into B, and the slowest from B to A. Over time, the speed of the atoms (and therefore the temperature) increases in B — a violation of the second law of thermodynamics.

References: http://physicsworld.com/cws/article/news/26939
http://www.wired.com/science/discoveries/magazine/15-06/st_best
http://en.wikipedia.org/wiki/Maxwell%27s_demon

Hits: 17862

The Story of Bottled Water

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
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on Tuesday, 29 March 2011
in Videos worth watching

Teachable Moment: How do you explain the impact that drinking bottled water has on our world... charts and statistics make people's eyes glaze over... this straight-forward, hard-hitting cartoon makes an otherwise challenging problem, easy to understand.

Radiation Dose Chart

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
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on Monday, 28 March 2011
in Images that speak for themselves

radiation-dose-chartTeachable Moment: This is a great image that explains radiation dosages through wonderful visuals.

Radiation Chart...

Hits: 35871

Cube Root Trick

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
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on Tuesday, 22 March 2011
in Images that speak for themselves

Cartoon explains trick for quickly calculating cube roots.

References: http://spikedmath.com/400.html

Tags: Math
Hits: 69582

Wolfram Mathworld: Recreational Mathematics

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
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on Monday, 21 March 2011
in Online Resources

Wolfram MathWorldTeachable Moment: Wolfram MathWorld is encyclopedic in it's content but the Recreational Mathematics has a number of fun little nuggets to try out on students. 

MathWorldTM is the web's most extensive mathematical resource, provided as a free service to the world's mathematics and internet communities as part of a commitment to education and educational outreach by Wolfram Research, makers of Mathematica.

Tags: Math
Hits: 14163

NRICH

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
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on Monday, 21 March 2011
in Online Resources

Nrich LogoTeachable Moment: Treasure trove of resources for teaching math including STEM topics

ABOUT NRICH

The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice. More information on many of our other recent activities can be found on our news pages.

Computer Science Unplugged

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
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on Monday, 21 March 2011
in Online Resources

Teachable Moment: This web site is full of great exercises that makes basic concepts of computer science accessible to everyone... without a computer!

CS Unplugged is a collection of free learning activities that teach Computer Science through engaging games and puzzles that use cards, string, crayons and lots of running around.

The activities introduce students to underlying concepts such as binary numbers, algorithms and data compression, separated from the distractions and technical details we usually see with computers.

Card Flip Magic: Error Detection and Correction

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
User is currently offline
on Monday, 21 March 2011
in Videos worth watching

Teachable Moment: Math + Magic = Learning without knowing you're learning math.

The world is noisy place, and errors can occur whenever information is stored or transmitted. Error detection techniques add extra parity bits to data to determine when errors have occurred.

 

Tags: Math
Hits: 23918

SMART Exchange

Posted by Diego Fonstad
Diego Fonstad
Diego Fonstad has not set their biography yet
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on Tuesday, 15 March 2011
in Online Resources

SMART Exchange LogoFind lesson plans for the SMART boards and connect with teachers.

References: http://exchange.smarttech.com/

Hits: 36685