Development of training kits for 21st century thai teacher production based on the visible learning concept to enhance education quality management in schools under the songkhla primary education service area office 1

This research aimed to develop and evaluate a training kit for Thai teachers in the 21st century, utilizing the Visible Learning concept to improve the quality of educational management in schools across the five southern border provinces of Thailand. The study focused on three areas: the efficiency of the training kit, comparative achievement of participants before and after training, and the satisfaction of teachers and educational personnel with the training program. The training kit was designed to help teachers implement the Visible Learning framework, emphasizing studentcentered learning, effective teaching strategies, and continuous assessment. The results of the efficiency test showed that the training kit achieved an efficiency value of 84.54/87.33, exceeding the standard criteria, demonstrating its effectiveness in enhancing teachers' competencies. Comparative achievement analysis between pre-test and post-test scores indicated significant improvement (value = 19.745, p < 0.001), confirming that the training had a positive impact on teachers' skills in educational management. Additionally, the satisfaction survey revealed that teachers and educational personnel were highly satisfied with the training, especially in areas related to content clarity, participation, and post-training support. In conclusion, the study found that the training kit based on the Visible Learning concept was effective in improving teacher skills and educational management in schools. The kit holds potential as a valuable tool for teacher development, particularly in the southern border provinces of Thailand, and could contribute to educational reform efforts in the country.