RT Book, Section T1 An alternative model for the description of computational estimation strategies A1 De Castro Hernández, Carlos A1 Segovia Álex, Isidoro A1 Castro Martínez, Enrique AB In this study we have analyzed the estimation strategies employed by preservice elementary teachers. It has been used an alternative model for the description of computational estimation strategies. In this model, strategies are integrated by approximation skills, mental computation algorithms, cognitive processes (reformulation, translation and compensation) and metacognitive processes (as the assessment of the outcome). The adoption of this model allows making the identification and characterization of estimation strategies and to complete a systematical classification of the strategies, attending to the estimation processes intertwined with them. PB University of East Anglia SN 0-9539983-6-3 YR 2002 FD 2002 LK https://hdl.handle.net/20.500.14352/60520 UL https://hdl.handle.net/20.500.14352/60520 LA eng NO Castro, C. (2001). Influencia del tipo de número en la estimación en cálculo [Influence of number type in computational estimation]. Unpublished Master Thesis. Departamento de Didáctica de la Matemática, Universidad de Granada. Dowker, A. (1992). Computational estimation strategies of professional mathematicians. Journal for Research in Mathematics Education, 23, 45–55.Hanson, S. A., & Hogan, T. P. (2000). Computational estimation skill of college students. Journal for Research in Mathematics Education, 31, 483–499.Lemaire, P., Lecacheur, M., & Farioli, F. (2000). Children’s strategy use in computational estimation. Canadian Journal of Experimental Psychology, 54, 141–148.Levine, D. R. (1982). Strategy use and estimation ability of college students. Journal for Research in Mathematics Education, 15, 350–359.LeFevre, J., Greenham, S. L. & Waheed, N. (1993). The development of procedural and conceptual knowledge in computational estimation. Cognition and Instruction, 11, 95–132.Reys, R. E., Bestgen, B. J., Rybolt, J., & Wyatt, J.(1982). Processes used by good computational estimators. Journal for Research in Mathematics Education, 12, 183–201.Segovia, I., Castro, E., Castro, E., & Rico, L. (1989). Estimación en cálculo y medida [Computational and measurement estimation]. Madrid: Síntesis.Sowder, J. T. (1994). Cognitive and metacognitive processes in mental computation and computational estimation. In R. E. Reys, & N. Nohda (Eds.), Computational alternatives for the twenty–first century. Cross–cultural perspectives from Japan and the United States (pp. 139–46). Reston, Va: NCTM. DS Docta Complutense RD 8 may 2024