The expansion of the World Wide Web and the use of computers in education have increased the demand for Web courses and, consequently, the need for systems that simplify their production and reuse. Such systems must provide means to show the contents in an individualized and dynamic way, which requires they present flexibility and interactivity as main characteristics. Nowadays, Adaptive Hypermedia Systems (AHS) have been released to support these characteristics. However, most of them do not allow the extension or modification of their resources. In this work we present the SAAW, a prototype of an AHS that allows the insertion/removal of plug-ins, among them the iGeom, an application for geometry learning, that makes it more interactive and dynamical.