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For 6 months, I'll be organizing, as part as my volunteer work in an NGO, math classes with small groups (~10 students, aged 16 or 17). These classes are not compulsory, but students willing to stay past the third class must accept to attend all subsequent classes, for a full year. In fact, it's not even true classes: the focus is mostly on discussing and solving interesting exercises, and motivated kids from low-income backgrounds to pursue advanced studies in the future.

I'll be giving my first "class" next Tuesday, and since the first class doesn't require any future commitment, I'm expecting around 30-40 people. I'm therefore thinking on focusing on fun math questions, little problems and mind twisters, but I'm not sure where to start.

Do you have ideas of fun problems that could motivate kids to stay? The first class will last two hours.

Thanks!

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How about stuff like Rubik's cube? –  J. M. Oct 1 '11 at 13:23
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I have converted the question to community wiki, as there's no single right answer. –  Zev Chonoles Oct 1 '11 at 14:26
    
@ZevChonoles Thanks! –  Clément Oct 1 '11 at 14:52
    
Not exactly a math problem, but video games certainly get 16-17 year olds involved. I'm not saying its a good thing, but it was certainly how I got involved in programming and stackoverflow.com . I've dropped video games completely, but now can't stop programming. %) –  Liam William Oct 1 '11 at 23:24

4 Answers 4

I immediately thought of the work of Martin Gardner.

You can see some of his work for free here.

Also worth mentioning is that the MAA is selling the entire collection of his Scientific American articles on a CD here.

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I read through his collected works around age 15-ish and, although I did not understand everything right away, had quite a blast. Absolutely recommended! –  drxzcl Oct 1 '11 at 21:14
    
Quite nice indeed! –  Clément Oct 1 '11 at 22:45

How is your German? I once did a similar workshop for a similar age group, and I taught them some proof techniques. Then, we spent a lot of time solving fun puzzles. The notes are here, here and here. Most of this might be more suitable for later classes, though.

You can teach them Euler characteristics, that's pretty hands on stuff and the result is astonishing. Also, there are lots of entertaining things one can do with probability, such as the Monty Hall problem (I wouldn't expect an average 16 year old to already know it), or the famous trick that if there are 30 people in a room, then you are fairly safe to bet that some two of them have their birthday on the same day of the year.

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Thanks for that! Unfortunately, I can't speak German at all (I'm French, and English is my second language) –  Clément Oct 1 '11 at 14:51

I am not a teacher , but I would have used problems mainly relating to the pigeon-hole principle or Dirichlet's box principle.In fact, for such students, Mathematical Circles would have been a fantastic resource.(That's my opinion as a student) http://www.amazon.com/Mathematical-Circles-Russian-Experience-World/dp/0821804308

You may like to organise math tournaments later on(various formats are suggested at the back of the book).I must say that the chapters on parity and inequality are really good. In fact, the book is aimed at bright 12-13 year olds and is therefore not heavy on notation or anything that is likely to put off students.

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Interesting resource indeed! I'll buy it =) –  Clément Oct 1 '11 at 22:45

Depending on you background and preferences, you might find interesting material at Computer Science Unplugged.

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