"Despite the difficulties encountered during the period of implementation of this Erasmus + project entitled ""The development of Common Curricula in Upper Secondary School Education and Baccalaureate in Europe: towards the Creation of a Common European Framework for Upper Secondary Education"", henceforth denominated EUROBAC project, we can consider this project to have been successful, since the objectives we had set in the presentation of the project have been achieved and most of the planned activities have been carried out.The Eurobac 2018-2020 project has been the continuation of another Erasmus + project that took place between 2015 and 2017, based on the development and consolidation of the binational programs Esabac and Bachibac, which involved the participation of the Lycée Molière de Paris, the Lycée Virgilio of Rome and the IES San Isidro of Madrid. The positive results that the previous project gave, encouraged us to involve the Romain Rolland Gymnasium in Berlin, which joined the three previous partners in the implementation of a new project and made it possible to include all the binational programs, with the addition of a secondary school that had the Abibac program, the equivalent of Esabac and Bachibac in Germany. Our project was meant for students between the ages of 15 and 17, most of whom belonged to these binational programs.As things stand, we are four educational centers located in the cities of Paris, Rome, Berlin and Madrid that have carried out the development and implementation of the project.With this project, we meant to encourage the joint effort of students and teachers for a better knowledge of the binational programs of our centers and to face a common study topic that we considered essential for the development of our collaborative work. Regarding the latter, we saw that an issue common to our four cities was that of urban transformations and gentrification processes, so from the beginning we dedicated ourselves to designing the objectives and features of this common study.All the meetings shared three types of activities in accordance with these objectives, albeit the original contributions given in each of them. First of all, city tours guided by the students of the host schools on the theme of urban transformations, followed by surveys among the population on the perception of these realities. Secondly, meetings with universities to have a deeper knowledge of their international programs. Finally, activities to promote European citizenship and a better knowledge of the EU, through workshops, such as the one held in Paris in December 2018, debates, such as the simulation of a debate in the European Parliament that was also held in Paris in December 2019, and institutional meetings. All these activities have been developed successfully and they have contributed to achieve the project objectives. These topics had already been designed in the presentation of the project, more concretely defined in the initial meeting which took place in Paris in October 2018 and then updated in the intermediate meeting held in Rome in June 2019 to define the calendar for the 2019-2020 academic year and to establish the priorities of the meetings in that year.Unfortunately, of the meetings scheduled for the 2019-2020 academic year, only the one in Paris could be held in person in December 2019. The following meetings were scheduled to take place in Rome, Berlin and Madrid between the end of February and mid-May 2020 but could not be held because of the health crisis. However, given the unforeseen and unprecedented situation, some activities continued to be carried out online, as far as possible, and the contact between the teachers was steadily maintained.In June 2020 we asked for an extension of the project, in the hope of being able to cover, throughout the 2020-2021 academic year, what had not been possible to be completed in the previous year, although the Romain Rolland Gymnasium withdrew because they were afraid that the German authorities were not favorable to this extension. Our partnership was granted this extension; even so, we did not manage to complete the face-to-face activities. However, after some initial moments of uncertainty, an improvement of our activities online allowed part of our program to be carried out.Moving on to another aspect, some local and international activities were carried out to disseminate the project:- Lycée Molière, with the material produced in different meetings, held a virtual meeting with the Universidad Nacional Autónoma de México (UNAM), of great importance in the dissemination of the project.- At IES San Isidro, a monthly film forum was held in accordance with the objectives of the project, until the school was closed on March 11, 2020 due to the health crisis, and consequently it was impossible to access the center in order to continue with this activity."