3. Independence of time and distance face to face video conferencing audio conferencing radio television correspondence Interaction computer conferencing Anderson, Terry. (Ed.). (2008). The Theory and Practice of Online Learning. AU Press: Athabasca University.
4. Independence of time and distance face to face video conferencing audio conferencing radio television correspondence Interaction computer conferencing Anderson, Terry. (Ed.). (2008). The Theory and Practice of Online Learning. AU Press: Athabasca University. Web based learning
5. Teacher presence Cognitive presence Social presence Adapted from Terry Anderson:The Theory and Practice of Online Learning, 2008.
6. Teacher presence Cognitive presence Social presence Educational experience Adapted from Terry Anderson:The Theory and Practice of Online Learning, 2008. Setting climate Selecting content Supporting discourse