Analysis of the Ability of High School Students in Solving Proportional Reasoning Problems Ahmad Zulfa Khotimi (a*), Sufyani Prabawanto (a)
a) Faculty of mathematics education and natural sciences, Indonesia University of Education. Jalan Dr. Setiabudhi No. 229, Isola, Kec. Sukasari, Kota Bandung, Indonesia
*) Ahmadzulfa.21[at]upi.edu
Abstract
This study aims to obtain a comprehensive description of the ability of high school students in solving proportional reasoning problems. Proportional reasoning was chosen because this ability forms the basis of many mathematics topics, such as understanding fractions, SPLDV, congruence, the concept of scale, and so on. Mastery of this ability can have a positive impact on improving students^ mathematical numeracy skills. This capacity building is expected to contribute to the achievement of SDG^s goals, especially in point 4.6, namely the mastery of literacy and numeracy skills in students. The research design uses a hermeneutic phenomenological approach with qualitative research methods. The research subjects involved in this study consisted of 5 students in one of the high schools in Bandung Regency. The findings in this study indicate that students use the cross-multiplication technique to solve proportional reasoning problems. The use of these techniques tends not to involve students^ proportional reasoning abilities. Other findings also show that students experience difficulties in solving numerical comparison and qualitative reasoning types of problems. In addition, most students use multiplicative relations in non-proportional problems. Based on the various findings above and the results of the study of various references, the findings above occurred due to several factors, namely the lack of variety of types of questions given when learning comparative material. In addition, the questions given are only of comparable and non-equivalent types, as stated in the textbook provided.
