Students’ mathematical reasoning in mathematics problems solving

Abstract

This study aims to describe how the students’ interest in learning class VIII SMP after usinga traditional game guide book with the selection of subjects who have low interest in learningmathematics. The research used a descriptive form with a qualitative approach. The data from thisresearch are students’ interest in learning. The object of this study were students of class VIII SMP. Thedata collection techniques used were questionnaires and interviews as data reinforcement from thequestionnaire results. The results of this study indicate that the use of traditional game guidebooksin mathematics learning is very effective, as seen from the results of the questionnaire on student interestin learning where male students’ interest in learning increases by 79 This study aims to exploreand describe students’ mathematical reasoning and the level of reasoning in solving mathematicalproblems TIMSS type with level intermediateand and the cognitive domain of reasoning. Mathematicalreasoning in this study is categorized into analysis (A), generalization (G) and justification (J). Thedata were obtained from the written answers of 27 seventh grade students of a religiously minded juniorhigh school and interviews with a representative of the type of answer group that was the subjectof the research. Data analysis was carried out based on students’ written answers and interviews bycategorizing mathematical reasoning and levels. The results of data analysis prove that mathematicalreasoning in the analysis category occurs when understanding the problem and making a resolutionplan is at the consolidation level, and at the expanding level when solving problems. Generalizationis done when solving the problem is at the developing level. While justification is done when understandingthe problem, when solving problems and re-checking the results of the answers. Studentjustification is at the developing level. These results show that mathematical reasoning is inseparablein solving mathematical problems.