| Línea 13: |
Línea 13: |
| | Hatano, G. (2003). Foreword. In A. J. Baroody & A. Dowker (Eds.), ''The development of arithmetic concepts and skills'' (pp. xi–xiii). Mahwah, NJ: Erlbaum. | | Hatano, G. (2003). Foreword. In A. J. Baroody & A. Dowker (Eds.), ''The development of arithmetic concepts and skills'' (pp. xi–xiii). Mahwah, NJ: Erlbaum. |
| | | | |
| − | Johnson, G. J. (2010). ''Proportionality in middle-school mathematics textbooks''. Tesis doctoral inédita, University of South Florida, Department of Secundary Education, Tampa. | + | Johnson, G. J. (2010). ''Proportionality in middle-school mathematics textbooks''. Tesis doctoral inédita, University of South Florida, Department of Secondary Education, Tampa. |
| | | | |
| | Kaput, J. J., & West, M. M. (1994). Missing-value proportional reasoning problems: Factors affecting informal reasoning patterns. In G. Harel & J. Confrey (Eds.), ''The development of multiplicative reasoning in the learning of mathematics'' (pp. 235–287). New York, NY: State University of New York Press. | | Kaput, J. J., & West, M. M. (1994). Missing-value proportional reasoning problems: Factors affecting informal reasoning patterns. In G. Harel & J. Confrey (Eds.), ''The development of multiplicative reasoning in the learning of mathematics'' (pp. 235–287). New York, NY: State University of New York Press. |
| Línea 22: |
Línea 22: |
| | | | |
| | Lesh, R., Post, T., & Behr, M. (1988). Proportional reasoning. In J. Hiebert & M. Behr (Eds.), ''Number concepts and operations in the middle grades'' (pp. 93–118). Reston, VA: National Council of Teachers of Mathematics. | | Lesh, R., Post, T., & Behr, M. (1988). Proportional reasoning. In J. Hiebert & M. Behr (Eds.), ''Number concepts and operations in the middle grades'' (pp. 93–118). Reston, VA: National Council of Teachers of Mathematics. |
| | + | |
| | + | Mix, Kelly S. , J. Huttenlocher & S. Cohen Levine (2002). ''Quantitative development in infancy and early childhood''. Oxford: Oxford University Press. |
| | | | |
| | NCTM [National Council of Teachers of Mathematics] (1989). ''Curriculum and evaluation standards for school mathematics''. Reston, VA: Author. | | NCTM [National Council of Teachers of Mathematics] (1989). ''Curriculum and evaluation standards for school mathematics''. Reston, VA: Author. |
| − |
| |
| − | Mix, Kelly S. , J. Huttenlocher & S. Cohen Levine (2002). ''Quantitative development in infancy and early childhood''. Oxford: Oxford University Press.
| |
| | | | |
| | NCTM [National Council of Teachers of Mathematics] (2000). ''Principles and standards for school mathematics''. Reston, VA: Author. | | NCTM [National Council of Teachers of Mathematics] (2000). ''Principles and standards for school mathematics''. Reston, VA: Author. |