However, these visuals must be tailored to the characteristics of the medium and to the characteristics of the students. Teachers must be properly trained both in the use of equipment and in those techniques proven effective in the distance education environment. Learners benefit significantly from their involvement in small learning groups. These groups provide support and encouragement along with extra feedback on course assignments. Most importantly, the groups foster the feeling that if help is needed it is readily available.
Learners are more motivated if they are in frequent contact with the instructor.
The use of technologies such as fax machines, computers, and telephones can also provide learner support and interaction opportunities. When establishing a distance education program, one of the first things considered is the cost of the system. Maintenance - repairing and updating equipment. Infrastructure - the foundational network and telecommunications infrastructure located at the originating and receiving campuses. Production - technological and personnel support required to develop and adapt teaching materials.