# Math and Multimedia Blog Carnival #14

### Welcome to the Math and Multimedia Blog Carnival #14.

As is the usual tradition we’ll start with some properties of 14, first words to WolframAlpha which provides properties for any number entered including the prime factorisation and various properties. If we choose to investigate fourteen as word instead we could look for example at the frequency of use over time as well as definitions of the word.

We could even find out the Scrabble score for fourteen!

A great site for investigating number properties is Tanya Khovanova’s Number Gossip site, here we learn that 14 is a Catalan number, composite, deficient, even, odious and square free. The site gives clear definitions of all the terms used.

### Teaching

Having discussed number properties it seems appropriate to move to the first carnival submission where Jonathan Walsh presents Improve your Mental Maths posted at Smart Blog.

Erlina Ronda presents Introducing triangle congruence at Mathematics for Teaching.

William Emeny illustrates an excellent resource for illustrating the Monty Hall problem in Stay or Switch? The Monty Hall Problem at Great Maths Teaching Ideas.

Shari has written a thoughtful post Is Math Black and Whiteat Math + Technology = Fun.

Thinking about older students including those going into higher education Colleen Young (that’s me!) wrote this post ‘For Students‘.

### Problem Solving and Proofs

Guillermo P. Bautista Jr. presents Paper Folding: Locating the square root of a number on the number line posted at Mathematics and Multimedia.

### Real Life Mathematics

Pat Oaklief presents How You Can Support Your Daughter in Math and Science posted at her Amigram Blog.

David Wetzel discusses making real world connections in the teaching of algebra at Teaching Science and Math and David Wees has fitted a parabola to the curve of a leaning plant in Leaning Plants at 21st Century Educator.

### Technology

John Golden has been trying out Doink and presents Linear Animation posted at Mathhombre.

You will see I have mentioned Evernote in the above blog post ‘For Students‘ – it seems appropriate to illustrate an Evernote shared notebook with this one I created for Carnival resources.

This is a carnival so we should really end with some music – mathematical songs of course!

That concludes this edition. Thank you for reading. Submit your blog article to the next edition of Mathematics and Multimedia Blog Carnival using our carnival submission form. Past posts and future hosts can be found on our blog carnival index page.