A classification scheme was developed and implemented for the study of 436 educational Web sites focusing on mathematics, science, and technology learning. Results indicate that many educational Web sites are still predominantly text-based and do not yet exhibit evidence of current pedagogical approaches. Suggestions for future Web-based learning…

Describes an exploratory study on the acquisition and use of knowledge representation skills and structures by sixth-graders, supported by a computer-based learning environment. Results indicated that symbolic structures can be taught successfully, and that students using them in the context of instructional tasks perform at the higher band of…