The teaching and learning activities are nowadays transferring from teacher-focused to student-oriented, the learning method of students has been changed from passive acquisition to active discovery with the model of guided discovery learning. This study considers human sight system as the broadest and fastest channel for receiving new information and knowledge to propose visually-guided discovery-learning system for high schools, composed of three components, student, visual lecture, and teacher. The paper studies the characteristics of visualization to apply for the lecture of visually-guided discovery-learning system. This research surveys the input and output of the system, and analyses the factors affecting them, to constitute the mathematically quantitative model evaluating the efficiency of the system.
Huynh et al. (Tue,) studied this question.