摘要：This study aims to increase self confidence and student learning achievement using Mathematical Realistic Approach (RME) in class V SD N Semaken District Kalibawang Kulon Progo Regency.This research is a classroom action research in a collaborative manner. The results show that Realistic Mathematical Approach (PMR) consistsing of the stages of (a) understanding contextual problems, (b) describing and solving contextual problems, (c) comparing and discussing the answers, and (d) drawing a conclusion, can increase self-confidence and learning achievement of the students.Students increased self confidencecan be seenfrom thepre-executed action.There are3 students or 15% have high confidence and 17 students or 85% havelow self confidence. The increase of students self confidence can be seen in Cycle I. A total of 14 students or as much as 70% have high self confidence and 6 students or 30% have low self confidence. After extended research on Cycle II, a total of 18 students or as much as 90% have high self confidence and only 2 or as much as 10% of students have low self confidence. Indicated that an increase in the learning process, from teacher centered action before and after the applied measures student centered.improved of learning process in increased learning outcomes. The improvement of students learning avhievement can be seen in Cycle I. A total of 17 students or 85% have met the MML (Minimal Mastery Learning) and 3 students or 15% have not met the MML. After efforts to improve students learning achievement in Cycle II, students who have low scores (do not meet MML) have increased their learing achievement. In Cycle II, the number of students who meet the MML is 20 students or 100%.
其他摘要：Penelitian ini bertujuan untuk meningkatkan kepercayaan diri dan proses belajar matematika siswa menggunakan Pendekatan Matematika Realistik (PMR) di kelas V SD N Semaken Kecamatan Kaliba wang Kabupaten Kulon Progo. Penelitian ini adalah penelitian tinda
关键词：RME; Self Confidence; and Learning Achievement
