2007-2171 2007-2171 S2007-21712021000200027 10.32870/dse.v0i23.717 Mexico Mexico 00 12 2021 00 12 2021 12 23

2002 2012 59 9-17 2014 14 2 2 1-14 2011 57-69 2011 5-8 CCSO 2010 2011 85-96 2014 22 2 2 1-19 2005 2016 Agosto (8-12) Sucre 2003 52 4 4 439-74 MEC 2006 National Council of Teachers of Mathematics 1989 National Council of Teachers of Mathematics 2000 Ministery of Education 2007 2006 Salvador Bahía, Brazil 2014 22 2 2 Secretaría de Educación Pública 2018 II Secretaría de Educación Pública 2019 2012 26 1 1 6-18