The optional, open access, repeatable testing used by Calvin Garbin in his statistics courses exemplifies the easy use of this approach on the Web. From virtually any location at any time, Garbin's students can access course materials, and also attempt quiz items and receive feedback. Their performance in his course becomes dependent upon the amount of effort they are willing to put forth. Sample item from Garbin's extensive repeatable quiz bank. This combination means that folks with different preferred learning strategies can use different approaches.
Some students really study for the exercises, and then get on line and work all of the problems.
Others begin by taking a practice quiz and learn as they go. The exercises are set up on a mastery system. Students aren't done until they get a specified number of practice items correct for each of the topics. Sample feedback to item response from Garbin's extensive repeatable quiz bank. With eleven different major subject areas, most with over 200 sub-topics, this site provides a vast quantity of mathematical information, including some interactive figures.