The analysis of students’ answers in solving ratio and proportion problems

[摘要] The ratio and proportion is one of the basic concepts in mathematics. This concept is not only used to solve problems in mathematics but also in other disciplines and in daily lives. So, students should be have proficiency in solving ratio and proportion problems. During solving ratio and proportion problems, among students may have difference answers. Based on the students' answer and prediction of didactical situation, lesson plan and anticipation of didactical situation would be done by teacher. The purpose of this study was to analyze the various answers of students as well as to see the mistakes made by students in solving ratio and proportion problems. The method used in this study was a descriptive qualitative. The subject were ten students of junior high school in South Tangerang, Indonesia. Written tests related to ratio and proportion problems would be done by the subject and to be continued with depth interviewing. The result of this study are that almost students apply formula although without understand why the formula be used and the concept of ratio and proportion. These results can be used as a reference in implementing the learning of the ratio and proportion.

[学科分类] 物理（综合）