## Another TI-84 Plus Silver Edition giveaway puzzle contest!

I've been thoroughly enjoying the books James Tanton sent me, which infuse Math education with life and joy and play, along with the Youtube videos that cover some of the topics in the books. One of his videos particularly intrigued me because it covers a topic I've never run into in my 30+ years of playing with Math. So, I thought I'd invite each of you to watch this particular video, to solve the challenge at the end of the video and, if you're lucky, to win a TI-84 Plus Silver Edition calculator for your efforts.

But first, a word from our sponsor:

STEM skills - science, technology engineering and math - hold the key to tomorrow's innovation. To help students learn tomorrow's job skills, Wild About Math! has teamed-up with Texas Instruments to give away a TI-84 Plus Silver Edition graphing calculator with GraphiTI package. To learn more about TI-84 graphing calculators or other TI products, visit: http://education.ti.com. To learn more about STEM careers, visit: http://education.ti.com/studentzone.

Here's the puzzle.

**Watch the video below. Demonstrate how to solve the challenge at the end of the video which is to derive a formula for the nth non-square number. You must use the approach in the video and you must show your work.**

In order to be eligible to win you must follow the contest rules:

1. Email your answers with solutions to mondaymathmadness at gmail dot com.

2. Only one entry per person.

3. Each person may only win one prize per 12 month period. But, do submit your solutions even if you are not eligible.

4. Your answer must be explained. You must show your work! Wild About Math! will be the final judge on whether an answer was properly explained or not.

5. The deadline to submit answers is Monday, December 20, 12:01AM, Pacific Time. (That’s Monday morning, not Monday night.) Do a Google search for “time California” to know what the current Pacific Time is.)

6. The winner will be chosen randomly from all timely well-explained and correct submissions, using a random number generator.

7. The winner will be announced before Christmas.

8. The winner will receive a TI-84 Plus Silver Edition graphing calculator with GraphiTI package.

9. Comments for this post should only be used to clarify the problem. Please do not discuss ANY potential solutions.

10. I may post names and website/blog links for people submitting timely correct well-explained solutions. I’m more likely to post your name if your solution is unique.

Christine MuradDecember 13th, 2010 - 10:52

It is great to see that more and more people are interested in encouraging our youth to peruse STEM field careers! What a better way to motivate them than with a brand new TI-84 Plus Silver Edition.

At DemandTec we are determined to help students become more interested in Math and Science. Annually we promote our nationwide Retail Challenge to all high school seniors who are interested in perusing a higher education. The Challenge is an online Math contest where students play the role of Pricing Analysts. They and are asked to manage a series of products and make pricing, inventory and promotional decisions during the course of 2 weeks. It’s a great way to see how Math and Science concepts can be used in the real world. The students have the opportunity to win 2 scholarship prizes, with the grand championship round held at NASDAQ in NYC, where the grand champion team will win another scholarship and ring the closing bell at NASDAQ.

We encourage all parents and educators who are interested, to get involved and bring the Retail Challenge to their community.