Among the courses of the SILSIS school there is also an ?Elements of Information Technology? course, where graduates learn the use of ICT in the teaching of mathematics. This course is supported by an eLearning environment: lectures and practical sessions are developed both in the classroom and on line. All these aspects become a background for the future teachers, because they use an eLearning environment as "learners" for the first year, while in the second year they use it as teachers, developing schedules and contents for online learning in mathematics.