ANALISIS KESALAHAN SISWA SMP DALAM MEMBUAT PEMODELAN MATEMATIKA
Abstract
Pemodelan merupakan tahap penting dalam penyelesaian masalah matematika, terutama pada jenis soal cerita. Namun demikian, proses pemodelan seringkali menjadi masalah utama bagi siswa. Tujuan penelitian adalah untuk mendeskripsikan kesalahan siswa SMP dalam membuat pemodelan matematika dan faktor yang menyebabkan terjadinya kesalahan tersebut. Penelitian ini adalah penelitian kualitatif dengan menggunakan pendekatan deskriptif pada siswa kelas VIII SMP Negeri 2 Modo, Lamongan pada semester Ganjil Tahun Ajaran 2020/2021. Teknik pengumpulan data yang dilakukan berupa tes dan wawancara. Hasil penelitian ini menunjukkan bahwa kesalahan yang terjadi adalah siswa tidak dapat mengidentifikasi variabel-variabel soal, membuat asumsi yang salah, dan membentuk persamaan yang tidak mewakili masalah. Penyebab internal kesalahan tersebut adalah tidak memahami komponen-komponen masalah, menggunakan nalar atau insting sendiri dalam menyelesaikan soal cerita, tidak memperhatikan keterkaitan antar komponen masalah. Sedangkan faktor eksternalnya adalah tingkat kesulitan soal yang diberikan cukup tinggi dan kurangnya sumber referensi yang memadai
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