Investigating the Level of Teaching Presence, Cognitive Presence and Social Presence at Web - Based Courses: The Case Study of Shahid Beheshti University

When teaching in an e-learning environment, we are faced with a different and new environment compared to the face-to-face. Lack of teacher and learner physical presence in e-learning environments can turn into major problem in such courses, since, it has diverse effects on students' satisfacti...

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