This paper presents a proposal that aims at equipping a ubiquitous computing environment with tools that enables a user to reach a set of competences. The approach makes use of learning objects suited to the users learning style, which can be automatically determined by the system. In order to achieve a set of competences, a sequence of learning objects should be presented to the user. In this article we show that a sequence of learning objects can be obtained by means of evolutionary strategies and search algorithms. Experiments carried out indicate that better results can be obtained with evolutionary algorithms.