+Welcome.

The instructional approaches could be classified in terms of the conditional factors place & time as well as other factors.

Firstly, as regards place they can be implemented P1) in a classroom, called face-to-face (F2F), P2) in a distance, called online or virtual or distant, which can be further discriminated into P2a) long distance & P2b) short distance ones or P3) both in a classroom & in a distance (either in parallel or in different occasions), called blended or hybrid.

Secondly, regarding time they can be implemented T1) in the same time, called synchronous or live or real-time, T2) in different time, called asynchronous or on demand & T3) both in the same & in different time (in parallel or in different occasions), which let be called semi-synchronous.

Thirdly, with regard to other factors (such as manner, goal & content) there are numerous further classifications, e.g. open or not, which are out of the scope of this question.

Finally, from the combination of the above result 9 main alternatives: 1) F2F synchronous, i.e. on-site classes, 2) long distance synchronous, i.e. Web live classes, e.g. with videoconferencing or instant messaging, 3) long distance asynchronous, e.g. Web blogs, forums or wikis, 4) long distance semi-synchronous, e.g. MOOCs, 5) short distance synchronous, i.e. intranet live classes, 6) short distance asynchronous, e.g. intranet blogs, forums or wikis, 7) short distance semi-synchronous, e.g. VLEs/LMSs, 8) blended synchronous, i.e. both on-site & online classes & 9) blended semi-synchronous, e.g. both on-site classes & VLEs/LMSs or flipped classes.

Please share your opinion or remarks on the above classification so that it is improved.

Thank you.

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