R. Febriyanti, Y. Fuad, M. Masriyah
Students' reasoning may implement to investigate how students learn to think mathematically in solving mathematical problems. This study investigates the way of students' reasoning in solving some integer comparisons. The sample were the 5 th grade students of Labschool Unesa, consisting 11 girls and 8 boys. Considering the existing students' portfolio, all students completed both maths ability and integer comparisons tests, and were ranked the result based on the results. Three students were voluntarily chosen from each mathematic ability level to assess their reasoning way in solving integer comparison problem. The data was obtained from the reasoning test about integer comparison and a semi-structured interview based on reasoning test. It is underlined that students used a variety of ways to show their conclusions. Students presented appropriately ways and reasons in solving the problem. The student with high mathematics ability often used the number line to illustrate the problem, its mean used order. Meanwhile the student with medium ability also utilized the number line. The student with low mathematics ability applied commonly the other context to solve the problem. its mean used magnitude reasoning. This result suggest that teachers should exercises the students to more explore their reasoning way in any problem. © Published under licence by IOP Publishing Ltd.
Program Pascasarjana, Universitas Negeri Surabaya, Surabaya-East-Java, Indonesia
