ERIC Number: ED348000
Record Type: RIE
Publication Date: 1992-Feb
Reference Count: N/A
Acquiring Structural Knowledge from Semantically Structured Hypertext.
Jonassen, David H.; Wang, Sherwood
Hypertext researchers and designers contend that the hypertext information structures may reflect the semantic structures of human memory. Further, they believe that mapping the semantic structure of an expert onto hypertext information structure and explicitly illustrating that structure in the hypertext will result in improved comprehension because the knowledge structures of the users will reflect the knowledge structures of the expert to a greater degree. (Structural knowledge is defined as the knowledge of how concepts within a domain are interrelated.) This paper reviews techniques for ascertaining an expert's knowledge structure and mapping it onto hypertext. It then reviews the results of three studies that assess the effects of different methods for explicitly mapping expert knowledge structures onto hypertext on the acquisition of structural knowledge by the learners. The studies show that depicting knowledge structures in the form of a graphical browser or by making explicit the structural nature of the links during traversal does not improve learners' acquisition of structural knowledge. However, when assigned the task of generating a semantic network following browsing, structural knowledge acquisition improved significantly. It is the assigned processing task and goals for learning while interacting with a hypertext that appears to most significantly determine the effects of its use on learners' knowledge structures. (27 references) (Author/BBM)
Publication Type: Reports - Research; Speeches/Meeting Papers
Education Level: N/A
Authoring Institution: N/A
Identifiers: Structural Knowledge
Note: In: Proceedings of Selected Research and Development Presentations at the Convention of the Association for Educational Communications and Technology and Sponsored by the Research and Theory Division; see IR 015 706.