Introduction d'un compagnon dans un logiciel éducatif en classe

During software deployment in schools, we observed a lot of solicitations of teacher by children. The major goal of such solicitations was for children to ask for navigation help. The type of questions and associated answers vary according to the child and the evaluation of learning situation. This article will discuss the benefits in terms of usability of educational software that include an intelligent and emotional companion as support navigation help for 6 years old children. Building on the results of experiments of Iroplan (a computer assisted learning system to help in the apprenticeship of reading), we analyze the interactions induced by the three entities: Teacher -- Computer -- Learner. Then, we'll overview a state of art on the use of companions in educational software. Third, we present Tago -- the companion created for Iroplan -- under its HCI and AI aspects. The version of Iroplan with Tago has been the subject of a usability test on 26 children whose first result will be exposed in the last part, along with their adequation in answering the interaction issues forementioned.