Sunday, August 23, 2009

number gossip

Just found that in Tanya's Khovanova blog (http://blog.tanyakhovanova.com/?page_id=2)

Number gossip - try this with your kids : http://www.numbergossip.com/

Non-standard problems

Going over non-standard math problems ( math riddles) books, I notice that they do repeat from book to book. Some of the problems are really ancient, they come to us from the indian and arabic tales, old monastery textbooks, etc. This makes me think that
1. they are non-trivial in any educational system
2. they tell us something about our brain
3. it is not trivial to come up with this type of problems.

So, my question is
1. what makes these problems non-trivial?
2. where are the people who know how to generate these problems?
3. how could I learn to generate these problems?

You inputs are welcome!
Best regards,
Julia