Greer, B., &Mangan, C. (1986). Choice of operations: From 10-year-olds to student teachers. In Univ. of London Inst. of Educ. (Eds.), Proceedings of the 10th PME International Conference, 1, 25-30. Ponte, J. P. y Chapman, O. (2006). Mathematics teachers’ knowledge and practice.In A. Gutierrez y P. Boero (Eds.). Handbook of Research of the Psychology of Mathematics Education: Past, Present and Future. (pp. 461-494). Rotterdam: Sense Publishing. Tirosh, D., Graeber A., & Glover R. (1986).Pre-service teachers’ choice of operation for multiplication and division word problems.In Univ. of London Inst. of Educ. (Eds.), Proceedings of the 10th PME International Conference, 1, 57-62. SEP. (2011). Plan de estudios 2011 Educación Básica. México: CONALITEG.
