We conceptualize Computer-Based Instruction (CBI) as involving both a primary task, learning to use a particular domain, and a secondary task, learning to use instructional approach embodied in a computer system and to manipulate its interface. We argue that the complexity and compatibility of the instructional approach and the interface separately and interactively influence the ease with which students are able to learn the subject matter. Examples from previous research ...
We used a 2x2 design to compare the performance of remedial subjects learning to solve mathematics word problems. Subjects worked either alone or as a member of a dyadic cooperative group, and received up to 12 hours of instruction and practice, using either a 'problem-solving environment' over which the user exercised considerable control or a directive, sometimes intrusive tutor. Individual subjects who worked with the problem-solving environment showed the largest ...
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