Our study is leant address the steps of designing a "Fossilis" tutorial with a general aim of facilitating the assimilation of students' knowledge of the notion of fossil, the understanding of the process of fossilization in time and space and then self-evaluation. It is an interactive software that target students of Sciences of the Earth and the Universe (STU). Developing the idea of such teaching devise is based on the results of a questionnaire survey that was administered to university students at the Faculty of Science, Dhar El Mahraz, Fes, Morocco. This investigation tool has allowed detecting the main difficulties expressed as well as the suggestions of the involved students. Indeed, the majority of them approved the integration of ICT as an alternative solution to alleviate their difficulties in assimilating the concepts of fossil and fossilization.

Keywords: tutorial, students, fossils, time, space;