Every day more and more undergraduate and graduate students use their mobile computing devices during lectures. This situation has been identified by several researchers as a distracting factor. This article presents and discuses two CSCL activities that help delivering the knowledge in engineering courses, at two traditional Chilean universities. These activities have also been used during the last years to deal with the problem of students' distraction, caused by laptop usage during lectures. The results obtained could represent good alternatives to deal with the stated problem.