Penerapan Model Discovery Based Learning (DBL) Berbantuan Geogebra Untuk Meningkatkan Hasil Belajar Siswa Kelas IXB SMP Negeri 4 Yogyakarta Materi Transformasi Semester 1 Tahun Pelajaran 2018/2019

Abstract

The purpose of this study is to describe the application of Discovery Based Learning (DBL) assisted by GeoGebra software that can improve the learning outcomes on transformation material of Class IXB students of SMP 4 Yogyakarta Junior High School in the first semester of academic year 2018/2019. The research method used was classroom action research which consisted of four stages, namely planning, implementation, observation, and reflection. The research subjects were all IXB grade students, consisted of 34 students, while the research object was the whole process and results of mathematics learning with the application of learning using DBL assisted by GeoGebra to improve students’ learning outcomes. The research instruments were researchers, student activity observation sheets, observation sheets for teacher learning activities, student motivation questionnaire sheets, pretests, posttests, documentation, and field notes. Data analysis techniques used qualitative descriptive data analysis through three stages, namely reduction, analysis and inference of data. This research was conducted in two cycles. The results showed that the learning outcomes of Class IXB students of SMP 4 Yogyakarta Junior High School in in the first semester of academic year 2018/2019 were improved using DBL assisted by GeoGebra. The average of pretest cycle 1 was 31, 68. The average of posttest was 94.09. The increase was 62.41. The average pretest cycle 2 was 30, 88. The average posttest was 93.38. The increase was 62.50. The increase was higher than the indicator of research success, which was 50.00