UPAYA PENINGKATAN PEMAHAMAN KONSEP PECAHAN DALAM PEMBELAJARAN MATEMATIKA MELALUI MODEL PROBLEM BASED LEARNING

Abstract: The purpose of this research was for increasing the understanding of the concept of fraction in mathematic learning by Problem Based Learning model. This research was Classroom Action Research (CAR). It was conducted through two cycles. Each cycles consist of planning, implementing, observation, and reflection. The subject of data research were teacher and students fourth grade which amount is thirty. The resources of data research were teacher and students. The tehniques of data collecting were interview, observation, test, and documentation. The validity of data research which was used were resources triangulation, methods/tehnique triangulation, and content validity. The analysis of data resources used interactive model qualitative data analysis and descriptive analysis. The conclusion of this researh was Problem Based Learning model could increase the understanding of the concept of fraction in mathematic learning Abstrak: Tujuan penelitian ini adalah untuk meningkatkan pemahaman konsep pecahan dalam pembelajaran matematika melalui model Problem Based Learning. Penelitian ini merupakan penelitian tindakan kelas (PTK). Penelitian dilaksanakan dalam dua siklus. Setiap siklus terdiri dari perencanaan, pelaksanaan tindakan, observasi, dan refleksi. Subjek penelitian ini adalah guru dan siswa kelas IV yang berjumlah 30 siswa. Sumber data adalah guru dan siswa. Teknik pengumpulan data yang digunakan adalah wawancara, observasi, tes, dan dokumentasi. Validitas data yang digunakan adalah triangulasi sumber, triangulasi metode/teknik, dan validitas isi. Analisis data menggunakan analisis data kualitatif model interaktif dan analisis deskriptif. Simpulan penelitian ini adalah model Problem Based Learning dapat meningkatkan pemahaman konsep pecahan dalam pembelajaran matematika. Kata kunci: pemahaman konsep, pecahan, matematika model pembelajaran, problem based learning