Educational Technology is the application of techniques and processes for systematic design of learning experiences through instructional organisation and strategies. The focussed emphasis is on problem oriented approach to design instruction and its application and not on use of individual media only. The book covers important areas like communication, teaching action research, media intervention in pedagogy, programmed learning, techniques of modification of teacher behaviour etc. It also presents detailed discussion on information and communication technologies and its effective integration in teacher education. The book may be useful for all, having interest in the subject.