by Larry Campbell | Apr 21, 2016 | |

### Is 0 (Zero) Even, Odd, Neither, or Both? (and more)

One of the most common ‘stumpers’ to the average student, future teacher, or ‘man on the street’ seems to be “Is 0* ***Even** or **Odd**?” I used to get the question all the time – still do, occasionally. Let’s settle it once and for all – maybe?

I think at least *some* of the confusion comes from a phenomenon that I didn’t completely notice until late in my career, and still somewhat puzzles me. Many of the future teachers with whom I dealt seemed to confuse the *even/odd* dichotomy with the *positive/negative* dichotomy. So let’s settle that one, too!

To see the distinctions and explanations, visit **Even/Odd/Neither/Both.**

by Larry Campbell | Mar 24, 2016 | |

### The Beautiful and Amazing Pythagorean Theorem!

Hyperbole? Typical language for a math nerd? Read further and see. 🙂

The Pythagorean Theorem is actually one of the most beautiful relationships (you could *almost* say coincidences) in mathematics. It’s SAD that it almost always gets taught in a ‘memorize-this-you’ll-need-it-later’ sort of way. **It should be presented with exclamation points, not sleeping pills!!**

For some elaboration, and to see some amazing facts (and fascinating pictures), see **PythagThm.**

by Larry Campbell | Feb 16, 2016 | |

### Celebrating Pi – Part 1

Three weeks from today (if you’re reading this on Monday 2/22), we will celebrate *Pi Day!** *This celebration will surface a couple of times next month, so let’s begin the celebration a little early. We will do this in two ways. Our ‘main feature’, if you will, will give a little perspective on what ‘pi’ really *is. *Then, as a bonus, we’ll throw in a Pi Trivia Quiz. Yes, the quiz is a repeat from last year, but one can never have too much fun, eh? If you saw it last year, can you remember the answers? 🙂

**SO, What is ‘pi’ – really?** Everyone talks about PI and almost everyone knows it as a ‘number’ that’s close to 3.14. And that’s correct, as far as it goes. But there’s more. But where did it come from? What is it really? See **WhatIsPi?**

**Bonus: **A rerun of a **Pi Trivia Quiz**! We’ll repeat the ‘quiz’ itself this month and follow with the answers next month. Fun stuff! See **PiTrivaQuiz**.

by Larry Campbell | Jan 21, 2016 | |

**Special Mathematical Dates for 2016 !**

We did this last year, with some success, it seemed, so we’ll roll it out again for 2016.

Many of you know that, in my opinion, *every *day of the year is mathematically special in some way or other. (And I like to try to prove it, when challenged.) Nonetheless, as is the case every year(!), there are a few *very* in*teresting* days coming up in 2016, including a (sneaky?) Version 2 of one that allows us to re-celebrate last year’s ** once-in-a-century*** *day! To see a few, visit **2016 Special Days****.**

by Larry Campbell | Nov 19, 2015 | |

### Perfect, Abundant, and Deficient Numbers – Great Fun!

We have probably danced around the subject of perfect numbers once or twice – we may even have defined them. But there are a couple of other *closely related* kinds of numbers that are fun, too. For a description of these 3 kinds of numbers – and some interesting facts about each one, see **Perfect&More.**