Carnival submission deadline is TODAY! **Submit posts here, now!**

I’ll post the Carnival next week. Have a great weekend, everyone :-).

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Carnival submission deadline is TODAY! **Submit posts here, now!**

I’ll post the Carnival next week. Have a great weekend, everyone :-).

Please remember that In just a few days, I’ll be hosting the **87th Carnival of Mathematics**. **Submit articles here**, before Friday, **June 1st!!**

Yes, that’s right!

In just a few weeks, I’ll be hosting the **87th Carnival of Mathematics**. Please **submit articles here**, sometime before **June 1st**. I look forward to curating the submissions, and of course, sharing some great mathematics with the math blogging community!

And if you haven’t done so yet, please go check out the current carnival at the Math Less Traveled.

To get you in the carnival mood, here’s a juggling video. See if you can spot Mr. Chase :-).

In fact, today, I just gave the “Mathematics of Juggling” lecture three times. I try to give this lecture as a fun-day at the end of the year in my Precalculus classes. So, needless to say, I’m in the juggling mood!

**Happy Birthday to Mr. Chase, today!**

Today, I think I can safely say, is the last time my age will be a *perfect number*. The last time my age was perfect was when I was 6 years old. For those that forget the definition of a perfect number:

**A number is perfect if it is the sum of its proper divisors (that is, the sum of its divisors, excluding itself).**

For example, 6 is perfect because 1+2+3=6.

**So, how old am I?**

If you’re a consummate mathematician, you have the first couple perfect numbers memorized, and this is an easy question. If you’ve never thought about perfect numbers, or you forget what the next one is, I challenge you to figure it out for yourself. I challenged my students today to figure out my age, and two of them got it out without my help.

For a real challenge, prove that there are infinitely many perfect numbers. (open problem!)

Please meet the world’s newest little mathematician, born (appropriately) on *e* day!!

This is Ruth Ann Chase, born at 4:03 on February 7th, 2012. She weighed 7.5 lbs and was 21.5 inches long. She’s happy, healthy, and beautiful!

I just wanted to let everyone know that I’m back, and excited for the new school year. I took a little summer break from blogging, just like I did from teaching :-).

Today was our first day of school at Richard Montgomery High School, where I teach. (And we actually did have school today, even though we had both a 5.8 earthquake and an ‘historic’ hurricane in the last week.) **So welcome back to all my current and former students!**

Just wanted to celebrate. Yesterday, the blog received its 10,000th visitor. Cool! Thanks for your support, friends.