In vocational education, students learn in different school-based and workplace-based learning environments and engage with different types of knowledge in these environments. Students are expected to integrate these experiences and make meaning of them in relation to their own professional knowledge base. This study focuses both on "what" types of knowledge students learn in these environments and "how" they integrate these different types of knowledge. Individual and group interviews were conducted with students, teachers and workplace supervisors in a vocational programme in the Netherlands. Results show that students recognise the importance of vocational knowledge learned in school-based learning environments while they are in the workplace and vice versa, and continuously contextualise knowledge to make it applicable for new circumstances. Also, students learn differently at school due to their experiences in the workplace.