Journal of Information Systems Education (JISE)

Volume 20

Volume 20 Number 3, Pages 269-276

Fall 2009


Teaching Tip
An Inexpensive Device for Teaching Public Key Encryption


John M. Bunch
The SAJES Group, Inc.
Tampa, FL 33647, USA

Abstract: This paper presents a goal-based scenario approach to teaching introductory database concepts to undergraduates using two different scaffolding methods. One method, termed worked-out examples, attempts to reduce extraneous cognitive load by requiring students to complete increasingly complex missing parts of worked out examples. The other method, termed progressive practice, attempts to reduce intrinsic cognitive load by requiring students to complete increasingly more complex scenarios, beginning with a simple example and culminating in an alternative form of the target scenario. Classroom results with these methods have been positive, and are discussed.

Keywords: Problem-based learning, Constructivism, Scaffolding, Cognitive load, Database concepts

Download this article: JISE - Volume 20 Number 3, Page 269.pdf


Recommended Citation: Bunch, J. M. (2009). Teaching Tip: An Inexpensive Device for Teaching Public Key Encryption. Journal of Information Systems Education, 20(3), pp. 269-276.