Mathematical modeling is fundamental for numerous scientific and technical disciplines. CAMMP has taken on the challenge of providing high school students, university students, and teachers with authentic insights into modern, computer-aided modeling practices. This article presents CAMMP’s educational activities, with a particular focus on its one-day workshops, known as“CAMMP days.” The underlying design principles of the teaching and learning materials for CAMMP days are presented, and the practical implementation of these principles is illustrated through a workshop on speech recognition. Experience from 450workshops conducted with more than 7500 high school students suggests that CAMMP days successfully convey the importance and diverse applications of mathematics in the real world.