Brian M. Tissue
Department of Chemistry
Virginia Polytechnic Institute and State University
Blacksburg VA 24061-0212
E-mail: tissue@vt.edu
This paper describes the design and use of World-Wide-Web-based educational hypermedia in a senior-level Instrumental Analysis course during Fall 1995 (http://www.chem.vt.edu/chem-ed/4114/Fall1995.html). On-time completion of hypermedia prelab assignments was 75%; but use of other on-line resources, such as a question-and-answer page, was minimal. The prelab assignments contained text and graphics tutorials and multiple-choice questions to familiarize the students with the experiments and instrumentation before their laboratory sessions. Student responses to an in-class survey indicated that the multiple-choice questions were better at increasing conceptual understanding, rather than preparing the students for the actual lab work. Based on this assessment, the prelab assignments for the final set of experiments contained clickable-map graphics to better convey the experiential aspects of lab work. The disadvantage of using graphics-intensive material is the slow internet file-transfer times for users without ethernet connections. These pilot-project results provide direction for developing chemical-education hypermedia for both university and distant-learning settings.
Full paper in one file for printing: paper04all.html (~150 kB)
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