Work in progress - evolution of code reusing practices during a sequence of three CS courses

A certain amount of reuse practices are embedded in the CS courses. Some languages have also incorporated reuse as part of their design. We had the opportunity of teaching a group of students in three sequential programming courses ranging from the first notions (imperative programming) to a medium sized programming project in the third course (Java). During the three courses, different kinds and amounts of reuse were required from students, such as stepwise refinement of instructor´s code and the use of design patterns. In this work in progress we present the first results of revisiting the code production of a group of students from the reuse point of view. We linked the reuse quality of students practice to some program comprehension parameters.