EFEKTIFITAS PEMBELAJARAN OPEN-ENDED TERHADAP KEMAMPUAN BERPIKIR LOGIS MATEMATIKA SISWA SEKOLAH DASAR
Authors: Ahmad Marzuki , Nasution Dwi Putria 
Published: January 2023

AbstractThe low ability of students to think logically in learning is the main problem in this study. Open-ended learning is a learning approach that provides opportunities for students to explore problems so that various and varied solutions are found that can stimulate the development of students' mathematical logical thinking skills. The purpose of this study was to describe the effectiveness of the application of an open-ended learning approach in teaching students' mathematical logical thinking skills. This research is a quasi-experimental research with Non Equivalent Control Group Design. The population of the study was 5th grade students of SDN 100201. Through purposive sampling technique, class 5-B was appointed as the research sample. Data collection was used through observation of learning activities and tests which included pretest and posttest. The data analysis technique used descriptive analysis, t-test and N-gain. The data from the observation of learning management conducted in two meetings gave an average score of 4.05 (good category). The data obtained from the significance of the logical thinking ability of students' t-test score is 0.000, which means that there is a significant difference in the similarities of the two average students' logical thinking abilities from the results of the pretest and posttest. The average value of the N-Gain of students' mathematical logical thinking skills is 0.38 (medium category). It was concluded that students' mathematical logical thinking skills through open-ended learning were effective in the medium category. Keywords: Learning, Open-ended, Logical Thinking, Mathematics, Elementary School.  AbstrakRendahnya kemampuan berpikir logis siswa dalam pembelajaran merupakan permasalahan utama dalam penelitian ini. pembelajaran open-ended merupakan suatu pendekatan pembelajaran yang memberi kesempatan kepada siswa untuk dapat mengeksplorasi permasalahan sehingga ditemukan pemecahannya dengan beragam dan bervariasi yang dapat merangsang perkembangan kemampuan berpikir logis matematika siswa. Tujuan penelitian ini adalah untuk mendeskripsikan efektivitas penerapan pendekatan pembelajaran open-ended dalam membelajarkan kemampuan berpikir logis matematika siswa. Penelitian ini merupakan penelitian kuasi eksperimen dengan rancangan Non Equivalent Control Group Design. Populasi penelitian adalah siswa kelas 5 SDN 100201. Melalui teknik purposive sampling diangkat kelas 5-B sebagai sampel penelitian. Pengumpulan data digunakan melalui observasi kegiatan pembelajaran dan tes yang meliputi uji pretes dan postes. Teknik analisis data menggunakan analisis deskriptif, uji t-test dan N-gain. Data hasil observasi pengelolaan pembelajaran yang dilaksanakan dua kali pertemuan memberikan hasil nilai rata rata 4,05 (kategori baik). Perolehan signifikansi data kemampuan berpikir logis matematika siswa nilai uji-t adalah 0,000 yang bermakna bahwa terdapat signifikansi perbedaan kesamaan dua rata-rata kemampuan berpikir logis siswa dari hasil pretes dan postes. Perolehan nilai rata rata N-Gain kemampuan berpikir logis matematika siswa adalah 0,38 (kategori sedang). Disimpulkan bahwa kemampuan berpikir logis matematika siswa melalui pembelajaran open-ended adalah efektif dengan kategori sedang. Kata Kunci: Pembelajaran, Open-ended, Berpikir Logis, Matematika, Sekolah Dasar.