“Level of Effectiveness of Collaborative Learning Strategy on Mathematical Problem-Solving Among Grade 9 Students at Dapa National High School S.Y. 2025–2026”

Cristine Lanzaderas Bislig; Josephine Paican Argente; Shane Ashley Quisagan Bato; Shamelle Mantilla Besinga; Camay Jacob Dañas; Janrey Dollegon Sagun

doi:10.36948/ijfmr.2026.v08i03.75645

“Level of Effectiveness of Collaborative Learning Strategy on Mathematical Problem-Solving Among Grade 9 Students at Dapa National High School S.Y. 2025–2026”

Author(s)	Ms. Cristine Lanzaderas Bislig, Ms. Josephine Paican Argente, Ms. Shane Ashley Quisagan Bato, Ms. Shamelle Mantilla Besinga, Ms. Camay Jacob Dañas, Mr. Janrey Dollegon Sagun
Country	Philippines
Abstract	This study examined the effectiveness of the collaborative learning strategy on the mathematical problem-solving performance of Grade 9 students at Dapa National High School during the School Year 2025–2026. Anchored on the Collaborative Problem-Solving framework and Cooperative Learning Theory, the research employed a quasi-experimental pre-test–post-test design. A total of 83 Grade 9 students were selected using a random sampling technique, ensuring that participants were fairly represented from different sections. A researcher-made test was administered before and after the implementation of collaborative learning activities, including group discussions, peer teaching, and joint problem-solving tasks. Descriptive statistics such as mean and standard deviation were used to describe students’ performance, while the Mann-Whitney U test was applied to determine the significance of the difference between pre-test and post-test scores. Results revealed that students’ mean score increased from 13.3 in the pre-test to 29.0 in the post-test, indicating substantial improvement. Statistical analysis showed a significant difference between the two sets of scores (U = 0.00, p < 0.001), leading to the rejection of the null hypothesis. The findings concluded that collaborative learning significantly enhanced students’ mathematical problem-solving skills and promoted more consistent performance. The study recommends the integration of structured collaborative learning strategies in mathematics instruction to improve academic achievement and critical thinking skills among junior high school students.
Keywords	Collaborative Learning, Mathematical Problem Solving, Quasi-Experimental Design, Grade 9 Students
Field	Mathematics
Published In	Volume 8, Issue 3, May-June 2026
Published On	2026-05-03
DOI	https://doi.org/10.36948/ijfmr.2026.v08i03.75645

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“Level of Effectiveness of Collaborative Learning Strategy on Mathematical Problem-Solving Among Grade 9 Students at Dapa National High School S.Y. 2025–2026”

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