PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA KELAS VI SD SWASTA TAMAN ASUHAN PEMATANG SIANTAR

Abstrak

Kemampuan ngepecahin masalah matematika itu salah satu skill penting yang harus dimiliki siswa SD, terutama di kelas VI. Tapi berdasarkan situasi di SD Swasta Taman Asuhan, Kota Pematang Siantar, kemampuan itu masih rendah banget. Penyebabnya ya karena cara ajar yang terlalu fokus ke guru dan kurang bikin siswa aktif terlibat dalam ngehadapi masalah matematika. Makanya, butuh model pembelajaran yang bisa dorong siswa berpikir kritis dan aktif, salah satunya model Problem Based Learning (PBL). Penelitian ini mau tahu seberapa besar pengaruh PBL terhadap kemampuan pemecahan masalah matematika siswa kelas VI di SD Swasta Taman Asuhan, Kota Pematang Siantar. Pakai pendekatan kuantitatif dengan metode eksperimen semu atau quasi experimental research, dan desain nonequivalent control group design. Subjeknya dua kelas: satu eksperimen yang pakai PBL, satu lagi kontrol yang pakai cara ajar biasa. Data dikumpul lewat tes kemampuan pemecahan masalah sebelum dan setelah perlakuan. Data dianalisis pakai uji statistik inferensial buat lihat perbedaan kemampuan antara kedua kelompok. Hasilnya nunjukin kalau siswa yang ikut PBL kemampuannya lebih tinggi dibanding yang konvensional. Jadi, bisa disimpulin bahwa PBL punya pengaruh signifikan ke kemampuan pemecahan masalah matematika siswa kelas VI di sekolah itu. Model ini bisa jadi pilihan bagus buat ningkatin kualitas ajar matematika di SD.

Mathematical problem-solving ability is one of the essential skills that must be possessed by elementary school students, especially those in sixth grade. However, based on the learning situation at Taman Asuhan Private Elementary School in Pematang Siantar City, this ability is still very low. This condition is mainly caused by teaching practices that are overly teacher-centered and do not sufficiently engage students in actively dealing with mathematical problems. Therefore, a learning model that can encourage students to think critically and actively is needed, one of which is the Problem Based Learning (PBL) model.This study aims to determine the extent of the influence of the Problem Based Learning model on the mathematical problem-solving ability of sixth-grade students at Taman Asuhan Private Elementary School in Pematang Siantar City. The study employed a quantitative approach using a quasi-experimental method with a nonequivalent control group design. The research subjects consisted of two classes: an experimental class that applied the PBL model and a control class that used conventional teaching methods. Data were collected through mathematical problem-solving ability tests administered before and after the treatment.The data were analyzed using inferential statistical tests to examine differences in problem-solving ability between the two groups. The results showed that students who participated in learning through the Problem Based Learning model demonstrated higher problem-solving abilities than those who received conventional instruction. Therefore, it can be concluded that the Problem Based Learning model has a significant effect on the mathematical problem-solving ability of sixth-grade students at Taman Asuhan Private Elementary School in Pematang Siantar City. This model can serve as an effective alternative to improve the quality of mathematics instruction in elementary schools.