Whenever a physicist visits the physics faculty in Dortmund, he/she is bound to hear the success story of the so-called integrated course, a four-semester introduction to physics. These lectures are given by two professors simulta neously, one experimentalist and one theorist. After having asked the common question, "How many professors have killed each other?," the visitor usually realizes that this is an excellent way of presenting a coherent introductiorl to both experimental and theoretical physics. We decided to try this concept in an advanced course on semiconductor physics. At that...