2448-8089 2448-8089 S2448-80892016000200059 10.24844/em2802.03 Mexico Mexico 00 00 2016 00 00 2016 28 2 59 83

1988 17 5 5 8-10 DHL 2011 Departamento de Matemática Educativa del Cinvestav IPN 1996 5 37-65 1991 22 3 3 170-218 1999 133-55 2006 11-49 2003 3-34 2010 1 2 2 16-48 National Council of Teachers of Mathematics 2000 National Council of Teachers of Mathematics 2011