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==International==
 
==International==
   
*[http://www.mathunion.org/icmi/home/ The International Commission on Mathematical Instruction (ICMI)]
 
*[http://www.mathunion.org/icmi/home/ The International Commission on Mathematical Instruction (ICMI)]
 
* [http://www.erme.unito.it/ European Research in Mathematics Education (ERME)]
 
* [http://www.erme.unito.it/ European Research in Mathematics Education (ERME)]