eng Science and Education Publishing American Journal of Educational Research 2327-6150 2015-03-31 3 4 446 449 10.12691/education-3-4-9 EDUCATION2015349 article Volker Patzel micvp@nus.edu.sg 1 Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore Classroom feedback is essential to facilitate self-regulation and assessment of student and teacher performance. Here, the implementation of a technology (clicker)-supported classroom feedback system is described which provides students with three different levels of feedback: First, a direct computerized quantitative feedback; second, a dialogical external feedback from peers; and third, a class-wide qualitative external feedback from the teacher. This easy to set-up three-stage classroom feedback system which enables the application of several principles of good feedback practice triggered measurable learner and teacher self-regulation thereby improving the quality of learning and teaching. http://pubs.sciepub.com/education/3/4/9/education-3-4-9.pdf three-stage classroom feedback system clickers assessment of learning self-regulated learning