Math Carnival

Bon Crowder has woven a nice variety of math links into a creative story for the September Math Teachers at Play carnival. Enjoy!

To mix things up a little, this month’s Math Teachers at Play Blog Carnival is a love story – between two people and then their new cute daughter. It’s a story of the coolest carnival of all – having kids.

The Story of Bernice and John, Mathematician Parents . . .

Go read the whole thing!

The new Math Teachers at Play blog carnival has plenty of fun for math fans of all ages:

Willkommen! Welcome to the Math Teachers at Play blog carnival! Whether you are a teacher, homeschooler, parent, or a math enthusiast interested in general discussions about mathematics, there is a little bit of something for everyone here. Some of these links came as direct submissions by bloggers, and the others came from my Google Reader.

To start, here are some fun facts about the number 41:

• Starting with 41, if you add 2, then 4, then 6, then 8, etc… you would get a string of 40 prime numbers in a row!
• 41 is also a Centered Square Number, which means that it is the sum of two consecutive squares — 4^2 and 5^2, in this case. Can you figure out how this picture relates to the Center Square Numbers, and use the picture to explain why all Center Square Numbers are 1 (mod 4)?

Go read the blog carnival at I Hope This Old Train Breaks Down…

Welcome to the Math Teachers At Play blog carnival — it’s not just for math teachers!

If you like to learn new things and play around with ideas, you’re sure to find something intriguing here. Don’t try to read all 40(!) posts at once; take the time to enjoy browsing. Savor a few posts today, and then come back for another helping tomorrow or next week.

At my fortieth birthday party, I got a few of those gag presents meant to remind me how terribly old I was getting. Math Teachers at Play is less than 40 months old (it used to come out twice a month), but just imagine how many great math posts have been included over the months, in all 40 issues.

Go read the whole thing at Math Mama Writes…

Welcome to the May 20, 2011 edition of Math Teachers at Play. Before beginning the carnival, let us have some interesting facts about 38.

• The sum of the squares first three primes
• The number of years it took the Israelites to travel from Kadesh Barnea to the Zered valley in Deuteronomy
• There number of surviving plays written by William Shakespeare
• The atomic number of strontium
• Thirty seven and 38 are the first pair of consecutive positive integers not divisible by any of their digits.

Now, let the carnival begin!

Click here to enjoy plenty of mathy fun…

The new Math Teachers at Play blog carnival is ready for your browsing pleasure:

Welcome to the 37th edition of the Math Teachers at Play blog carnival. I’m delighted to host the carnival here this month at Maths Insider!

For those new to the Math Teachers at Play carnival, this carnival celebrates some of the best maths teaching articles written by teachers, parents and bloggers each month. …

In keeping with tradition, I’ve presented a “37″ puzzle and some interesting arithmetic facts about the number 37 below. …

Read the whole thing!

The carnival is posted!

36 has long been one of my favorite numbers, but faced with this carnival, it was hard to figure out why. It’s a square number that’s a product of two squares, but that’s not too rare. (Why?) It’s the 6th perfect square and the sum of the first six odds, but that’s not too remarkable. (Why?) It’s the 8th triangular number, but not a Sierpinski step or anything… wait! It’s a square triangular number? How common is that? 1, 36, then…?

Read the whole thing…