Abstract
This study aims to analyze the effectiveness of learning materials based on realistic mathematics education approach, as well as improving mathematical problem solving ability and student self-efficacy. Learning materials that developed were lesson plan, student book, student worksheet, mathematical problem solving ability test and self-efficacy questionnaire. This research is a development research by using the development model of Thiagarajan et al. (1974). Learning materials that have met valid criteria according to experts, were tested in class VII of SMP Negeri 17 Medan. The results showed that learning materials based on realistic mathematics education approach met the effective criteria and can improved mathematical problem solving ability and student self-efficacy. Based on the results of the study, it was suggested that mathematics teachers make an effort mathematical learning using learning materials based on realistic mathematics education approach.
Highlights
Education is a very important thing and cannot be separated from life
Based on the results of the analysis posttest of the trial II, it was found that the students mathematical problem solving ability have met classical completeness criteria
This is because the material and problems that exist in the student book and worksheet are developed in accordance with the characteristics and environment of students so that students can use prior experience to solve mathematical problems that make the learning process more meaningful
Summary
Education is a very important thing and cannot be separated from life. One of the things that can be done to achieve this goal is continuous renewal in the field of education, especially mathematics subjects (Hasibuan et al, 2018). The vision of Indonesian mathematics education states that mathematics education is devoted to understanding mathematical concepts and ideas which are applied in routine and non-routine problem solving through reasoning, communication, and connection development inside mathematics and outside mathematics itself (Saragih et al, 2017). The results of the data analysis of PISA 2013 by Scherer and Beckmann (2014) stated that mathematical and scientific competencies significantly contribute to problem solving through out the country
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