Because you can’t rely on using nonverbal communication (gestures or facial expressions) in online classes, clear written communication is especially important. Remember, too, that online classes aren’t less professional than on-site classes. They have similar objectives, and they require just as much effort. Don’t take your assignments less seriously simply because they are online. (The chart gives some examples of faulty assumptions about online versus traditional courses.)
In this age of hypermedia, texting, and online social networking, it might be tempting to use shorthand (AFAIK for as far as I know) or very casual language (no way) in your online classes. At best, these forms might appear comical; at worst, they might be confusing, annoying, or even offensive to others. While it’s perfectly acceptable to use shorthand language in informal contexts, you should use formal academic English for your course work and course communication—including e-mail and discussion posts.
You might not be completely accustomed to using academic English in your writing, but you should try to be as clear as possible and use a friendly but professional tone. Doing so will ensure that other readers understand your intended meaning and are not confused or offended by your work.
Faulty assumptions versus the realities of online learning
Shortcuts to avoid in online classes
Related topics:
Communicating courteously and professionally with your instructor and classmates
Using detail and clarity in discussions
Submitting only your own work