The book is based upon one of the foundational theories of distance education: Michael G. Moore’s theory of transactional distance (TTD). The theory, appropriate for all forms of education, proposes that learners’ education experience (in the form of transactional distance) is determined by three factors: dialogue (reciprocity between teacher and learner), structure (flexibility to individual learners’ needs) and autonomy (learner choice as to what, how and how much to learn).
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