The courses are structured and programmed keeping in view of the philosophy, principles and practices of open and distance learning. The print media is the main mode of learning for a distance learner. As the number of enrolment and programmes have been increasing, so was the requirement of printing for more number of book. The success of the whole programme in an open education system depends largely on the timely receipt of instructional material by the students that enables them to learn themselves at their own pace. The instructional material is provided to the students in dispatches or blocks.
Secondary students get six such blocks and Senior Secondary students get ten blocks.
This varies in case of vocational and life enrichment courses. These programmes developed by the Media unit supplements and compliments the other channels of learning such as printed self learning materials and personal contact programmes. Study material being Despatched to the Students. The distribution of study material is made to the students through the Accredited Institutions which are supplied with the study material in bulk for the students admitted by them. However, in some of the far flung areas, the Accredited Institutions are requested to collect the material from the nearest warehouses of the authorised transporters.