Development of an Active Learning Model Integrated with Positive Teacher–Student Relationships (PEACE2 Model) to Enhance Problem-Solving Skills and Learning Achievement in Physics for Grade 12 Students at Srikoonwittayabunlung School
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Abstract
This study aimed to develop an active learning model integrated with positive teacher–student relationships (PEACE2 Model) to enhance Grade 12 students’ problem-solving skills and learning achievement in Solids and Fluids at Srikoonwittayabunlung School, a small-sized secondary school with limited resources. A four-phase Research and Development (R & D) design was employed: (1) needs analysis, (2) model development and expert validation with pilot testing, (3) field implementation with 21 Grade 12/1 students, and (4) evaluation of students’ opinions. Data were collected using questionnaires, interviews, tests of problem-solving skills and learning achievement, lesson plans, and a student opinion questionnaire. Data analysis used descriptive statistics, instructional efficiency (E1/E2), effectiveness index (E.I.), and a paired-samples t-test. The findings revealed that the current practice of active learning and positive teacher–student relationships was moderate ( = 3.11, SD = 0.81). Therefore, it is necessary to develop instructional models. The PEACE2 Model organized learning into six steps: Preparation, High Engagement, Action, Conclusion, Enhance Skills, and Evaluate. Field efficiency was E1/E2 = 77.39/76.96, exceeding the 75/75 criterion, and the effectiveness index was E.I. = 0.72, indicating high learning gains. After implementation, students’ problem-solving skills significantly increased from pretest ( = 4.38, SD = 2.06) to posttest ( = 18.47, SD = 2.14), p < .001, and learning achievement significantly improved from pretest ( = 6.19, SD = 1.89) to posttest ( = 20.29, SD = 2.02), p < .001. Students’ overall opinions toward the PEACE2 Model were high, suggesting that the model is appropriate and can be effectively implemented to improve physics learning outcomes in resource-constrained small school contexts.
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