A browser-based system to facilitate practice in asking and answering simple questions in English was developed. The user may ask or answer by speaking or typing, and the computer's output is in the form of speech and/or text. The types of questions handled and the permitted vocabulary are limited, though the vocabulary items may be edited freely.…

This article presents KnowledgePuzzle, a browsing tool for knowledge construction from the web. It aims to adapt the structure of web content to the learner's information needs regardless of how the web content is originally delivered. Learners are provided with a meta-cognitive space (e.g., a concept mapping tool) that enables them to plan…