Distance education is the main emphasis on decentralized, participatory and popular education. Today, there are fewer countries that do not use distance education to meet their educational goals, but will vary according to the level of progress of each country used by the technology. One of the most commonly used telecommunication technologies today is the computer. The first attempt by teachers to use computers in the traditional classroom was usually lecture, learning experiences related to the teacher's teaching that was done in other educational settings, or was used as homework for further study. Along with the advances of other sectors, educational systems are also evolving, and the trend towards teacher-centric learning is on the rise. For example, in Bangladesh, textbooks in each subject include three student books, a teacher guide and a student guide. In all three books, there are activities on information and communication technology.