This practice report discusses the evolution of a CS1 Course taught at the University of Liège, Belgium. Over the last seven years several teaching activities have been thought to complement traditional theoretical courses and exercise sessions in order to promote students' engagement. The result is aligned with (i) the principles of assessment for learning, which consists in leveraging the assessment to improve the students learning, and (ii) the concept of blended learning. This report describes the difficulties the students faced and what we implemented to assist our course evolution. We also present and discuss results showing that, despite a high drop-out rate, we managed to engage students to work on a regular basis and, in some cases, raise their performance levels.