PROSES BERPIKIR LATERAL SISWA MADRASAH ALIYAH DALAM MENYELESAIKAN MASALAH GEOMETRI MELALUI PENDEKATAN OPEN-ENDED
DOI:
https://doi.org/10.32729/edukasi.v16i3.512Keywords:
Geometry, Lateral thinking, Open-ended approach, Berpikir lateral, Geometri, Pendekatan open-endedAbstract
Abstract
This research aimed to describe the process of lateral thinking amongst the students in MAS (equivalent to Private Senior High School) Darul Hikmah, Aceh Besar in solving geometry problems through open-ended approach. This research was a descriptive research and conducted by using a qualitative approach. Research subject was three students of Class XII of MAS Darul Hikmah, Aceh Besar, who had different abilities. Subject selection was conducted at the end of the research. Data collection was carried out by conducting test and interview. Data analysis was done by using qualitative method, i.e.: data reduction, data display, and conclusion. The results showed that the process of lateral thinking amongst the students was: 1) writing and explaining the things being known and asked in the questions, 2) solving the problems by using different methods, 3) solving the problems by using unusual method as it was relatively short; did not use much math operation; and was easily to understand; and 4) getting the idea in solving the problems by practicing trial and error; using previous operations; using triangle and diagonal; and having the ability to explain the unusual steps that have been used.
Abstrak
Penelitian ini bertujuan untuk mendeskripsikan proses berpikir lateral siswa siswa MAS Darul Hikmah Aceh Besar dalam menyelesaikan masalah geometri melalui pendekatan open-ended. Penelitian ini berbentuk deskriptif dengan pendekatan kualitatif. Subjek penelitian adalah tiga orang siswa kelas XII MAS Darul Hikmah Aceh besar yang memiliki kemampuan berbeda. Pemilihan subjek dilakukan pada akhir penelitian. Pengumpulan data dilakukan dengan tes dan wawancara. Analisis data menggunakan teknik analisis data kualitaif yaitu: reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa proses berpikir lateral siswa adalah: 1) menuliskan dan menyebutkan apa yang diketahui dan yang ditanyakan pada soal; 2) menyelesaikan permasalahan yang diberikan dengan mengunakan cara-cara penyelesaian berbeda; 3) menyelesaikan permasalahan dengan menggunakan cara yang tidak umum, lebih memilih menggunakan cara penyelesaiaan tidak umum karena relatif lebih singkat, tidak banyak menggunakan perhitungan matematika, dan mudah dipahami; dan 4) mendapatkan ide dalam menyelesaikan permasalahan dengan cara mencoba-coba, memanfaatkan cara penyelesaian yang pernah dikerjakan sebelumnya, memanfaatkan segitiga siku-siku, diagonal garis, dan mampu memberikan penjelasan mengenai langkah penyelesaian tidak umum yang telah digunakan.
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