Everyone knows that it takes a lot of time to teach online, but just how much time is that, really? That's what this study proposes to answer, and the answer is: "between 3 ½ and 7 hours per week" for classes of 25 students. "Participating in and grading the online discussions takes the greatest amount of time, however, the discussions show that the students posted 4 to 5 times as many messages as the instructor." Now this study was conducted of students in the 1999-2000 school year and was just published, leading me to ask: what took so long? Seriously, why would it take three years to compile and publish such a report? It seems to me that with the rapid pace of change, such data, at one time useful, is today hopelessly out of date.
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