A Study on Effects of Digital Teaching Materials in Two-Variable Linear Equation Concept Learning for Seven Graders

[[abstract]]With the popularization of Information Technology, the integrated teaching process with Information Technology has become an important educational subject. Based on the study unit “Two-Variable Linear Equation” from seventh grade in junior high school, this study develops a set of supplementary teaching material and multimedia and combines with diagnostic tests which consists of knowledge structure and Bayesian Network based Computerized Adaptive Test (BNAT) to design a comprehensive instruction activity for teaching, evaluation and supplementary. The instruction activity will then be applied to the experimental teaching process and will be used to evaluate the result of this teaching module. The analysis results are outlined as below: 1. Design curriculum of “Two-Variable Linear Equation” supplementary teaching material and multimedia and construct a platform of Computerized Adaptive Diagnostic Testing which is based on knowledge structure and Bayesian Network, to evaluate student’s learning results. 2. After applying digital teaching materials designed by researcher to the teaching process, the experimental group has better scores than the control group; this shows the positive teaching result of the applied digital teaching materials. 3. With the integrated teaching process with Information Technology, the performance of student from the experimental group is better than the control group with significant difference; this indicates the supplementary teaching materials designed by researcher can certainly help students with their learning process. 4. With the supplementary teaching materials designed by researcher, the result of teacher’s instruction is significantly better than student’s self learning; this shows that teacher’s instruction along with the supplementary teaching materials can certainly help students with their learning proces