Educational technology is a separate field of dealing with the theory of Education with development and application resources which implies the following principles: 1. Clarifies educational objecctives. 2. Placing content elements in a logical order. 3. Specifies the process of teaching learning process 4. Aquire the knowledge through development of models of teaching. 5. Adjoining the teaching learning process with feedback. 6. Selectio, evaluation and optimization of media. {Educational Technology in Asia under Apeid, 1995}