การพัฒนารูปแบบการจัดการเรียนรู้วิชาภาษาไทยโดยใช้แบบฝึกทักษะ เรื่อง การเขียนพรรณนา โดยบูรณาการร่วมกับรูปแบบการจัดการเรียนการสอนของแฮร์บาร์ต สำหรับชั้นมัธยมศึกษาปีที่ 2 โรงเรียนหอพระ

Abstract The purposes of this research were:

1. to develop and determine the efficiency of a learning management plan on descriptive writing integrated with the Herbart instructional model for Matthayom 2 students at Hor Phra School, achieving the efficiency criterion of 80/80;
2. to compare students’ learning achievement in descriptive writing before and after learning through the integrated Herbart instructional model; and
3. to investigate the satisfaction of Matthayom 2 students at Hor Phra School toward the learning management on descriptive writing integrated with the Herbart instructional model.

The sample group consisted of 32 Matthayom 2 students from Hor Phra School, Mueang District, Chiang Mai Province, during the second semester of the 2025 academic year. The sample was selected using cluster random sampling. The research instruments included lesson plans, a learning achievement test, and a student satisfaction questionnaire. The data were analyzed using mean, standard deviation, and t-test. The research findings revealed that:

1. the learning management plan on descriptive writing integrated with the Herbart instructional model for Matthayom 2 students demonstrated an efficiency higher than the prescribed 80/80 criterion, with an E1/E2 value of 85.40/89.90;
2. the students’ post-test learning achievement in descriptive writing was significantly higher than their pre-test achievement at the .05 level of statistical significance; and
3. the students’ satisfaction toward the learning management on descriptive writing integrated with the Herbart instructional model was at the highest level (x̅ = 4.39, S.D. = 0.65).

Keywords: learning management, descriptive writing, Herbart instructional model