University of Mohaghegh Ardabili Journal of School Psychology 22520821 4 1 2015 05 22 The impact of mathematical communication-based training on the mathematical reasoning ability among high-school students The impact of mathematical communication-based training on the mathematical reasoning ability among high-school students 22 37 283 FA Gh Ahmady Associate professor in curriculum, Shahid Rajaee Teaching Training University E Reyhani Assistant professor in mathematical education, Shahid Rajaee Teaching Training University N Nakhostin Roohi M.A. student of curriculum, Shahid Rajaee Teaching Training University Journal Article 2015 06 14 The purpose of this study was to investigate the effect of mathematical communication-based training (using class discussion method) on the mathematical reasoning ability of students. The statistical universe of the study was all 9^th grade female students of Shahre-Rey in the 1392-93 academic year. 57 students were selected using multi-stage random method and classified in two, experimental and control groups. Measurement tool of this study is mathematical reasoning ability assessment exam that were selected from TIMSS mathematical reasoning and Miyazaki (2000) questions, and its reliability was obtained 0.79. Designed program was implemented to experimental group during 16 sessions in three launch, explore, discuss and summarizing phases, using Cirillo's strategies (2013) for facilitating class discussions. Results of ANCOVA demonstrated that mathematical reasoning and deductive mathematical reasoning abilities of students in experimental group have been increased with respect to the students of control group. The value of Spearman's correlation showed that there are significant correlation between deductive and inductive reasoning of students in both control and experimental groups so that along with strengthening deductive reasoning ability and introducing with limitations of inductive reasoning, students less used inductive reasoning for argumentation. The purpose of this study was to investigate the effect of mathematical communication-based training (using class discussion method) on the mathematical reasoning ability of students. The statistical universe of the study was all 9^th grade female students of Shahre-Rey in the 1392-93 academic year. 57 students were selected using multi-stage random method and classified in two, experimental and control groups. Measurement tool of this study is mathematical reasoning ability assessment exam that were selected from TIMSS mathematical reasoning and Miyazaki (2000) questions, and its reliability was obtained 0.79. Designed program was implemented to experimental group during 16 sessions in three launch, explore, discuss and summarizing phases, using Cirillo's strategies (2013) for facilitating class discussions. Results of ANCOVA demonstrated that mathematical reasoning and deductive mathematical reasoning abilities of students in experimental group have been increased with respect to the students of control group. The value of Spearman's correlation showed that there are significant correlation between deductive and inductive reasoning of students in both control and experimental groups so that along with strengthening deductive reasoning ability and introducing with limitations of inductive reasoning, students less used inductive reasoning for argumentation. https://jsp.uma.ac.ir/article_283_550484dad729bce76f0a15f4877c1a87.pdf