Abstract
This study aims to describe the ability of students to think logically on probability subject in class IX in SMP Negeri 1 Takengon. This study uses a qualitative approach to the type of descriptive research. The subject of this study consisted of three students, with the criteria of one student with high ability, one with moderate ability, and one with low ability. Data collection used tests and semi-structured interviews. The instrument used was a test of probabality material. The process of data analysis in this study includes data reduction, data presentation, and drawing conclusions. Based on the analysis of the description of students logical thinking abilities with high criteria (student 1) showed excellent logical thinking skills. Then students with moderate abilities (student 2) showed good logical thinking skills. Student 2 has a deficiency in the stage of thought twitching. While students with low criteria (student 3) demonstrate sufficient logical thinking skills. Student 3 has a deficiency in the stage of thought twitching and drawing conclusions that indicate the student's inaccuracy. Overall the ability to think logically these three students can be said to be good. This can be seen from every work and interview results,, students are able to do most of the indicators of logical thinking ability.
Highlights
Logical thinking ability is an ability that is needed to face the challenges of the globalization era
This study aims to describe the ability of students to think logically on material opportunities in class IX in SMP Negeri 1 Takengon
Penelitian ini juga memperlihatkan bahwa butuh waktu yang cukup untuk membiasakan siswa melatih kemampuan berpikir logis dalam pembelajaran matematika
Summary
Pendekatan yang digunakan dalam penelitian ini adalah pendekatan kualitatif. Pemilihan siswa tersebut juga didasarkan pada wawancara dengan guru matematika yang mengajar di kelas mengenai kemampuan berpikir logis. Instrumen yang digunakan meliputi tes kemampuan kemampuan berpikir logis, dan wawancara semi terstruktur. Peneliti menggunakan wawancara semi terstruktur dengan mengajukan pertanyaan secara terbuka dan fleksibel terhadap subjek penelitian, namun tetap memperhatikan pedoman wawancara yang telah dirancang. Wawancara semi terstruktur dilakukan untuk mengkonfirmasi hasil tes siswa dan peneliti langsung yang mewawancarai siswanya berdasarkan hasil tes yang diperoleh. Tes yang diberikan berupa tes bentuk uraian dan penyusunannya disesuaikan dengan indikator kemampuan berpikir logis yang diukur. Tahapan dan indikator berpikir logis pada penelitian ini diadaptasi dari penelitian Ni’matus (2011)
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