The purpose of educational technology is to expand educational resources to learn not only in school textbooks, teachers and teaching materials only. The concept of educational technology need to have the opportunity to learn from the extensive knowledge sources, such as teaching methods, techniques, taught by the teacher told contents,But the current open opportunity students study information manually. a teacher planning guidance only. Psychologists have tried to figure out how to bring the system taught private lessons instead, but he thought the program "learning", which serves to teach a teacherin the class by themselves or through various media. Slow or fast. It is the ability of each student.