2448-8089 2448-8089 S2448-80892018000100213 10.24844/em3001.08 Mexico Mexico USA 00 00 2018 00 00 2018 30 1 213 236

2015 2007 1 19-30 2008 2002 47 1 1 101-16 2009 2014 85-7 1997 15 3 3 377-91 2003 3-34 2003 35-58 2003 519-56 2010 1 2 2 16-48 2004 6 2 2 205-26 National Council of Teachers of Mathematics 2003 2007 39 5, 6 5, 6 523-36 Secretaría de Educación Pública. 2016 1991 2016 28 2 2 59-84