1870-5308 1870-5308 S1870-53082019000200058 Mexico Mexico Mexico Mexico 00 12 2019 00 12 2019 29 58 86

Ministerio de Educación Nacional 2000 166-85 2017 177-86 Cpalms 2018 1993 86 5 5 404-7 2016 197-205 2009 33 33 72-81 2002 2006 11-49 2012 143-68 2010 1 2 2 16-48 2003 1988 2 93-117 2004 6 2 2 205-26 2015 2012 24 1 1 133-57 National Council of Teachers of Mathematics 2003 1980 11 217-53 2009 21 1 1 63-90 2014 2012 2016 28 2 2 59-83 2018 99 7-28 1990 10 2 2 133-70 1994 41-59 1995