scholarly journals Las prácticas de justificación en el aula de matemáticas

2011 ◽  
Vol 5 (3) ◽  
pp. 93-103
Author(s):  
Mirela Rigo ◽  
Teresa Rojano ◽  
François Pluvinage

En este artículo se exponen los resultados parciales de un estudio centrado en el análisis del papel que juega el convencimiento en la construcción del conocimiento matemático que se da en el aula. Se describen los resultados de una investigación empírica, centrada en el análisis de un estudio de caso longitudinal, en el que se examinan las prácticas de justificación y promoción de convencimiento a las que sistemáticamente recurre una profesora de sexto grado de primaria. Además de describir los patrones de racionalidad identificados en las clases observadas, se muestra que en el aula pueden converger, en un mismo recorrido discursivo, argumentos por razones y argumentaciones por motivos y que estas justificaciones son acumulativas, suelen ser implícitas, tienen límites borrosos y carecen de una estructura lineal. Justification Practices in the Mathematics Classroom The paper contains the partial outcomes of a study focused on analyzing the role played by convincingness in building mathematical knowledge in the classroom setting. The paper describes the findings of an empirical study that is centered on the analysis of a longitudinal case study, in which we analyze the justification practices and convincingness promotion systematically resorted to by a sixth-grade elementary school teacher. In addition to describing the patterns of rationality identified in the classes observed, this paper serves to show that in the classroom setting, reasons-based arguments and motive-based lines of argument can converge within one discursive path. Consequently the justifications are cumulative, apt to be implicit, with blurred outer borders and lack a linear structure.Handle: http://hdl.handle.net/10481/14598

Author(s):  
Aleksandra A. Kaplon-Schilis ◽  
Irina Lyublinskaya

This case study analyzed the TPACK development and a learning trajectory of a single pre-service special education elementary school teacher during TPACK-based graduate pedagogy course and TPACK transfer from this course to the teaching during induction year. The case study was guided by the following research questions: 1) What instructional strategies and experiences in the graduate pedagogy course supported TPACK development of this pre-service teacher? and 2) What are the internal and external factors affecting TPACK transfer for this teacher? The study showed that TPACK level of the participant increased to exploring level of TPACK throughout the graduate course, but regressed to Adapting level during first year of teaching showing partial transfer of TPACK. The study described course experiences and instructional strategies that supported preservice teacher's TPACK development in the graduate course and identified some external and internal factors that could have affect the transfer of TPACK from college classroom to teaching.


2019 ◽  
Vol 5 (1) ◽  
pp. 88
Author(s):  
Ma’ruf Ma’ruf

The purpose of this study is to describe: (1) the understanding of the AL-Muslim elementary school teacher Waru Sidoarjo about authentic assessment; (2) the problems experienced by AL-Muslim elementary school teacher Waru Sidoarjo in implementing authentic assessments; (3) efforts made by AL-Muslim elementary school teacher Waru Sidoarjo in overcoming the problems faced in implementing authentic assessments. This study uses a qualitative approach type of case study. Data collection techniques using observation, interview, and documentation techniques. The results of the study show that; (1) the teacher has mastered the concept of assessment and the concept of authentic assessment, (2) the problems faced by the teacher in the implementation of authentic assessments are many aspects assessed and techniques used, time availability, student characteristics, number of students, and individual teachers, (3) The teacher makes several efforts to overcome the problems faced in implementing authentic assessments, including discussing with colleagues and adding references to authentic assessment.


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