"Computer Algebra and Education. Examples of exercices with the help of MAPLE" Frederique Barkats Laboratoire de Mathematiques J.A Dieudonne Universite de Nice-Sophia Antipolis. We are going to conduct some exercises with the help of MAPLE computer algebra software. This session illustrate the notion of euclidian ring and is intented for 2nd year students of the Deug and third year of Math. The goal is to make students discover, first of all in an experimental way, the different notions useful to them (problems of divisibility, zero dividers, inversible elements, factorability...) and then to place a "tool box" of educational programs.