logistic growth in Danish upper-secondary mathematics classes using an authentic source. The material was developed in conjunction with teaching a university-level course for future mathematics teachers and published in the form of a small booklet that introduces, contextualises, explains and discusses an original source by the Belgian mathematician Pierre Fran ois Verhulst (published 1838). The material offers multiple strategies for classroom implementation, ranging from a basic introduction to the topic to a full-scale teaching unit, as well as detailed suggestions for its cross-disciplinary integration with other subjects such as history, languages, art and social science. Our approach has shown potential for engaging students in
enquiry-driven learning of both mathematics and its history.