The Effect of the 5E Inquiry-Based Learning Model Combined with the Kamol Model on Physics Problem-Solving Skills in Wave Optics Among Grade 11 Students

Natthakarn Nantago; Benchawan Thewakun; Prapaporn Theprueang; Natthawut Chaneeprakon; Sumit Jirangnimitsakul; Apinun Titipornpun; Kanokkan Titipornpun

Natthakarn Nantago Suratthani Rajabhat University
Benchawan Thewakun Suratthani Rajabhat University
Prapaporn Theprueang Suratthani Rajabhat University
Natthawut Chaneeprakon Suratthani Rajabhat University
Sumit Jirangnimitsakul Suratthani Rajabhat University
Apinun Titipornpun Suratpittaya School
Kanokkan Titipornpun Suratthani Rajabhat University

Keywords: 5E inquiry-based learning, Kamol model, physics problem-solving skills

Abstract

This study aimed to evaluate the effectiveness and efficiency index of implementing the 5E Inquiry-Based Learning Model combined with the Kamol model on students' academic achievement, problem-solving skills in physics, and satisfaction levels. The participants were 41 Grade 11 science-mathematics students, selected through purposive sampling. The research instruments included: (1) lesson plans based on the 5E Inquiry-Based Learning Model integrated with the Kamol model; (2) a 20-item multiple-choice test assessing pre- and post-instruction achievement in wave optics; (3) a 10-item problem-solving skills assessment using a 5-point Likert scale; and (4) a 15-item satisfaction questionnaire, also employing a 5-point Likert scale. Data analysis utilized percentage, mean, standard deviation, and t-tests. The findings indicated that the instructional approach achieved an effectiveness score of 74.51/74.02 and an efficiency index of 0.65. Post-instruction academic achievement (x̄ = 14.80, SD = 1.32) was significantly higher than pre-instruction scores (x̄ = 5.10, SD = 2.14) at the 0.01 significance level. Additionally, 92.68 % of students surpassed the 70 % achievement benchmark. The average problem-solving skills score was 4.30 (SD = 0.05), categorized as high, and overall satisfaction with the instructional approach was rated at 4.38 (SD = 0.11), indicating a high level of satisfaction.