The twitter discussion is very quick, instant and
spontaneous comparing to a Blackboard discussion and and in-class discussion
since there’s only certain amount of characters (140) that users can insert in each
posting. It means the twitter directly delivers the user’s message to the other
users like a flash lights between light houses and ships at night time. It has
a function called hashtag (#whateveryouwanttosay), that could make the postings
more variety even though the users can only type 140 characters. When you click
the hashtag, you will be able to see all the other user’s posting with the same
hashtags.
On the other hand, the BlackBoard discussion contains heavy contents
but much clearer than the twitter discussion. Each discussion has a title and is
based on given topics or certain subjects. By commenting each posting, the
users are able to communicate each other. Lastly, the in-class discussion is
clear and direct the most because the communication happens in real-time. However,
it could be too costly and somewhat hard to meet up and have a discussion,
especially when the group is widely distributed.
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