The paper analyzes three major problems encountered by our team as we endeavored to turn problem solving examples in the domain of programming into highly reusable educational activities, which could be included as first class objects in various educational digital libraries. It also suggests three specific approaches to resolving these problems,…

This study applied evaluation techniques to "Cesar" (a hypermedia learning environment for deaf children based on electronic stories) and "Hyper-Book" (an electronic book based on the paper book metaphor and designed to be part of an electronic library). It also identifies steps that can be used in evaluating electronic books…