Efektivitas Pembelajaran Kolaboratif Menggunakan Worked Example terhadap Kemampuan Pemecahan Masalah Matematis

Nadya Amalia Juana (Universitas Tangerang Raya)
Muh. Khaedir Lutfi (Universitas Tangerang Raya)

Wacana Akademika : Majalah Ilmiah Kependidikan
Vol 10 No 1 (2026): Mei 2026 (In Progress)

This study examined whether collaborative learning using worked examples improved students’ mathematical problem-solving performance compared with conventional instruction. A quantitative quasi-experimental study used a non-equivalent control group design involving 32 Grade 11 students at a private senior high school in Tangerang, Indonesia. Two existing classes were selected through convenience sampling. Data were collected using an eight-item constructed-response test on integral calculus, developed around Pólya’s four problem-solving stages. Analyses included descriptive statistics, ANCOVA with pretest scores as the covariate, and the Mann–Whitney U test, with a significance level of 5%. Pretest scores were significantly associated with posttest scores, F(1, 29) = 23.071, p < .001, ηp2 = .443. After adjustment for pretest scores, the group difference in posttest scores was not significant, F(1, 29) = 0.167, p = .686, ηp2 = .006. The Mann–Whitney U test likewise showed no significant difference in normalized gain (U = 132.50, p = .865). Thus, this study did not establish an advantage of collaborative learning using worked examples over conventional instruction. The findings do not demonstrate equivalence and should be interpreted cautiously given the small, nonrandomized sample and incomplete reporting of model diagnostics.