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Penerapan Model Guided Discovery Learning Untuk Meningkatkan Pemahaman Konsep Matematis Mahasiswa Guntur Maulana Muhammad; Karso Karso
JURNAL EKSAKTA PENDIDIKAN (JEP) Vol 2 No 2 (2018): JEP: Jurnal Eksakta Pendidikan
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jep/vol2-iss2/213

Abstract

This action research is based on the implementation Guided Discovery Learning (GDL) in the 2013 curriculum (K13) for education in Indonesia. Beside that the minimum completeness criteria, for space analytic geometry in Suryakancana University, has not been achieved yet. The aim of this study was to improve the mathematical conceptual understanding of students who were taking lectures on space analytic geometry. The sample consisted of two classes with many students of 19 and 22 respectively. This classroom action research was completed in two cycles. In the second cycle, the class absorption of each class was 78.95% and 77.27%. Thus it can be concluded that the implementation of the GDL model can improve the ability to understand students' mathematical concepts, especially in the analytic geometry of space subject, and in general students provide a positive response to learning with the GDL model.
Peningkatan Kemampuan Pemecahan Masalah Matematis dan Keaktifan Belajar Siswa Melalui Model Pembelajaran LAPS-Heuristik Nita Rahayu; Karso Karso; Sendi Ramdhani
IndoMath: Indonesia Mathematics Education Vol 2 No 2 (2019)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (584.877 KB) | DOI: 10.30738/indomath.v2i2.4536

Abstract

The purpose of the research to find out whether the increase in mathematical problem solving abilities of students using the LAPS-Heuristic learning model is better than the mathematical problem solving abilities of students who use conventional learning models, how students' learning activeness attitudes towards mathematics learning using the LAPS-Heuristic learning model, and obstacles in completing problems solving. The research method used was a quasi-experimental research design with Nonequivalent control group design. The experimental class obtained learning with the LAPS-Heuristic learning model and the control class with conventional learning models. The participant in this research is all of students at seven grade. The samples used were two classes from eleven classes selected by purposive sampling technique. To obtain data from the research results, a problem solving ability test instrument was used, a questionnaire on student learning activeness, and an interview. Based on the results of data analysis the improvement of students 'mathematical problem solving abilities using the LAPS-Heuristic learning model is better than students who use conventional learning models, the students' learning activeness in the LAPS-Heuristic learning model is almost entirely positive. The obstacles experienced by students in solving the problems of mathematical problem solving abilities are that students find it difficult to understand question the problem solving abilities so that it is difficult to develop a plan to solve problems that cause obstacles in counting operations that require accuracy.
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE TWO STAY TWO STRAY DENGAN TIME TOKEN UNTUK MENINGKATKAN KEMAMPUAN KOMUNIKASI MATEMATIS SISWA Tyas Dwi Nurta Marwinda; Karso Karso; Kusnandi Kusnandi
Journal on Mathematics Education Research (J-MER) Vol 1, No 1 (2020)
Publisher : Departemen Pendidikan Matematika, FPMIPA, UPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/j-mer.v1i1.24570

Abstract

Two stay two stray merupakan suatu model pembelajaran yang mengoptimalkan kegiatan penyelesaian masalah melalui kegiatan diskusi. Dengan menggunakan strategi time token kegiatan diskusi menjadi lebih aktif. Model pembelajaran kooperatif tipe two stay two stray berpusat pada siswa sedangkan guru hanya sebagai fasilitator. Penelitian ini bertujuan untuk mengetahui (menganalisis) peningkatan kemampuan komunikasi matematis siswa yang memperoleh pembelajaran  Two Stay Two Stray dengan Time Token dan siswa yang memperoleh pembelajaran dengan pendekatan saintifik. Penelitian ini menggunakan desain kuasi eksperimen dengan populasi siswa kelas XI SMA Negeri 1 Bandung semester ganjil tahun ajaran 2019/2020. Lalu dipilih sampel, yaitu kelas XI IPA 5 sebagai kelas kontrol dan XI IPA 6 sebagai kelas eksperimen. Data yang diperoleh merupakan hasil dari pretest, posttest, angket dan lembar observasi. Hasil penelitian menunjukkan bahwa peningkatan kemampuan komunikasi matematis siswa yang memperoleh model pembelajaran kooperatif tipe Two Stay Two Stray dengan Time Token lebih baik daripada siswa yang memperoleh model pembelajaran dengan pendekatan saintifik, serta respon siswa terhadap model pembelajaran kooperatif tipe Two Stay Two Stray dengan Time Token baik.