The paper discusses teaching materials on thermodynamics, designed and implemented in 5 classes of scientifically-oriented
secondary schools in Italy (grade 12).
The materials are designed to: i) foster conceptual understanding; ii) create a learning environment rich enough to enable each
student to find a personal way for appropriating content knowledge.
In order to achieve the first aim, the design takes into account the main results of literature about students’ difficulties in
thermodynamics. In order to achieve the second aim, forms of “productive complexities” are implemented.
The paper presents the design criteria and shows why they have the potential to create an inclusive and creative learning
environment.