Students’ mathematical reasoning in mathematics problems solving

Abstract

This study aims to describe how the students’ interest in learning class VIII SMP after using
a traditional game guide book with the selection of subjects who have low interest in learning
mathematics. The research used a descriptive form with a qualitative approach. The data from this
research are students’ interest in learning. The object of this study were students of class VIII SMP. The
data collection techniques used were questionnaires and interviews as data reinforcement from the
questionnaire results. The results of this study indicate that the use of traditional game guidebooks
in mathematics learning is very effective, as seen from the results of the questionnaire on student interest
in learning where male students’ interest in learning increases by 79 This study aims to explore
and describe students’ mathematical reasoning and the level of reasoning in solving mathematical
problems TIMSS type with level intermediateand and the cognitive domain of reasoning. Mathematical
reasoning in this study is categorized into analysis (A), generalization (G) and justification (J). The
data were obtained from the written answers of 27 seventh grade students of a religiously minded junior
high school and interviews with a representative of the type of answer group that was the subject
of the research. Data analysis was carried out based on students’ written answers and interviews by
categorizing mathematical reasoning and levels. The results of data analysis prove that mathematical
reasoning in the analysis category occurs when understanding the problem and making a resolution
plan is at the consolidation level, and at the expanding level when solving problems. Generalization
is done when solving the problem is at the developing level. While justification is done when understanding
the problem, when solving problems and re-checking the results of the answers. Student
justification is at the developing level. These results show that mathematical reasoning is inseparable
in solving mathematical problems.