With the health crisis of COVID-19, the application of digital tools to support teaching is a widespread fact in the university community. Based on this fact, the international project Professors for the world was developed. Connecting the work of universities in several countries from the application of online teaching exchanges, it developed experiences of a transdisciplinary nature. The one narrated here was proposed as a connection between architecture and graphic design, transferring to the students the importance of drawing in spatial creation. On a third area like sculpture, halfway due to its difficulty between the two main disciplines, the experience had a good response from the students, who demonstrated an active commitment both in the theoretical and practical sessions of the working day activity. An experience that supports the effectiveness of this type of online teaching exchanges, also supporting the adoption of transdisciplinary approaches.