the text based communication the e-learning depends on promotes and supports the collaborative and critical thinking since writing requires higher cognitive level than just face to face conversation. at the same time, teachers (since there are more time and space) ask more cognitive questions.
there are 3 element key of a community of inquiry: cognitive, social and teaching presence.
the technology of e-learning:
1. 1st generation: used text books. phone and e-mails. behaviorist. freedom in time and place.
2. 2nd generation: used cognitive theory, restrict for time or place. used computer assisted instruction (CD). the teacher is only for evaluation and guidnes.
3. 3rd generation: gives opportunity for students to recreate knowledge: collaborative and critical thinking. used audio, video and telecommunications.
4. 4th generation: used CMC, and all others.
it is the ability that people who belong to a community to show their real personality as people through the used communication medium.
how can the written communication channel replace the face-to -face communication where one can read the body language and hear the speech tone? students actually could overcome this problem while using the communication skills. it is good to mention here that the leanness of the medium depends on the task (purpose).