Abstract
The aim of this paper is to present an Constructivism Approach for an Educational Adaptive Hypermedia Tool. The learning platform has a constructivist approach, assessing the user knowledge and presenting contents and activities adapted to the characteristics and learning style of the student. The platform allows the students and teachers to autonomously create and consolidate knowledge, with permanent automatic feedback and support, through instructional methodologies and educational activities explored in a constructivist manner.

Abstract
This article aims to present the steps for creating a learning methodology to the health area based on open source software and digital health learning contents. We intend to apply some common practices of engineering to the health area in order to enhance the preservation, sharing, production and re-use of contents. For this purpose, we created a thematic repository named MELOR (Medical Learning Objects Repository), an e-learning platform named MEDUCA (Medical Education), a social network, a ip-TV channel and several learning resources and learning objects in order to investigate new mechanisms to increase health education and enhance the sharing overall. We also created a main portal where other researchers can participate.

Abstract
This paper discusses the use of IMS Learning Design based templates to illustrate how to utilize a learning object, providing one or more scenarios that incorporate the learning object, giving a pragmatic characterization of it. The adopted notation for the templates is quite similar to the IMS Learning Design Extensible Markup Language binding, also incorporating abstract elements of the specification, like title, learning objectives and roles, for example. The generation of the pre-defined templates has been following the 8 Learning Events Model.

Abstract
The aim of this paper is to present an adaptation model for an Adaptive Educational Hypermedia System, PCMAT. The adaptation of the application is based on progressive self-assessment (exercises, tasks, and so on) and applies the constructivist learning theory and the learning styles theory. Our objective is the creation of a better, more adequate adaptation model that takes into account the complexities of different users.

Abstract
The aim of this paper is to present an Educational Adaptive Hypermedia Tool, PCMAT, Based on Progressive Assessment and adapted to the student model and learning style. The adaptation of the application is based on progressive self-assessment (exercises, tasks, etc.). The learning platform was already implemented, tested and evaluated in learning processes in Basic Schools. Also, the paper defines and evaluates the characteristic of the User Model to be used in the Student Modeling.

Abstract
In this paper we discuss how the inclusion of semantic functionalities in a Learning Objects Repository allows a better characterization of the learning materials enclosed and improves their retrieval through the adoption of some query expansion strategies. Thus, we started to regard the use of ontologies to automatically suggest additional concepts when users are filling some metadata fields and add new terms to the ones initially provided when users specify the keywords with interest in a query. Dealing with different domain areas and having considered impractical the development of many different ontologies, we adopted some strategies for reusing ontologies in order to have the knowledge necessary in our institutional repository. In this paper we make a review of the area of knowledge reuse and discuss our approach.