70 schools in the US, plus others in Australia, Austria, India, Poland and Singapore are now using the Israel-developed CIJE Excellence 2000 program. Mind-bending math problems and international competitions, puzzles and challenges build a school-wide culture of excellence.
http://www.excellence.org.il/eng/Index.asp?CategoryID=157
http://www.youtube.com/watch?v=nce1w9RyzoQ