Discusses improving mathematical reasoning through the design of computer microworlds and evaluates a computer-based learning environment that uses multiple representations to improve undergraduate students' conception of average speed. Describes improvement of students' estimates of average speed by using visual feedback from a simulation.…

Quality education is often impeded by lack of instructor time and by a failure to provide instruction that is individualized and at the point of need. Integration technology into course development can alleviate these problems, but only if the technology is easy to learn and supports a systems approach. In implementing a Web-based Technical…