Educational Matrioska collects the pedagogical experience of the subject: "Academic Project" of the Master's Degree in Architectural Communication (MACA) as specialized training of the Doctorate in Architectural Communication of the ETSAM-UPM. The main objective of the subject is "how to teach to teach", as part of the learning of architectural communication. It is a 45-credit subject, which develops intensively in two consecutive weeks. After the first three editions of this subject: Matrioska (16-17), Madrid Heroes and Vilains (17-18) and Mestizo Madrid (18-19), we analyze the successes and mistakes of an innovative pedagogical experiment, which tries to give tools for teaching through empowerment, selflearning and self-knowledge of students so that they can enhance their abilities to address new challenges in real-time practical teaching to other students (learn by doing), reversing roles and eliminating hierarchies.