Statlab: an interactive teaching tool for DOE. An interactive web-based teaching tool, Statlab, for design of experiments is presented. In this tool, the student is introduced to practical strategies for experimenting through virtual case studies. Statlab forces students to think about practical details since it hides options that students do not ask for. Engineering students as well as industrial participants in our courses consider Statlab as a stimulating learning environment. Statlab can be freely used through the web site url{}.