The project "SKUPAJ V PRETEKLOSTI, SKUPAJ V PRIHODNOSTI" ("TOGETHER IN THE PAST, TOGETHER INTO THE FUTURE") was coordinated by Gimnazija Lava grammar school, Šolski center Celje, together with its partner school V. gimnazija Zagreb (grammar school), which is one of the most successful and most highly-respected grammar school in Croatia. The main advantage of cooperation with a school from a culturally similar environment is the fact that similar approaches and practices in both environments can easily be compared. On the basis of SWOT analysis Gimnazija Lava recognized its strong and weak points and in its development plan set its priorities: *satisfaction of key stakeholders achieved with increase in quality, * strengthening of the high-skilled professionals, * consolidation of recognition and competition of Gimnazija Lava on both local and European levels. The main objectives of the project were: * strengthening of specialist, pedagogic, didactic, management and other competences of the participants, * identification and transfer of innovative education practices / approaches from the partner school into the school's activities, * the improvement in the quality of work at Gimnazija Lava, * strengthening of the European dimension and international cooperation of the school. Strategies and methodologies to achieve these objectives were the preparation participants for the mobility, personalized training with job shadowing and benchmarking of good and innovative practices at the partner school and working of participants in 'doublets'. We carried out 16 mobilities/trainings in 8 five-day mobility flows. Each of the sixteen participants had a mentor teacher (a teacher of the same subject) at the partner school, who led the training. The participants were: * teachers of general subjects: Slovenian, maths, English, German, biology, chemistry, psychology, sociology, information science, sports, music, arts; * heads of professional working groups: Slovenian, biology sports; * assistant headmaster. The achieved project results are: • improved specialist, pedagogic, didactic and management competences of the participants, • a new international partnership with V. gimnazija Zagreb and thus a stronger European dimension, • familiarization with the Croatian school system, • identification and analysis of 14 examples of good practice at the partner school, • comparison of 13 curricula of different subjects, • comparison of 12 matura exams of different subjects, • 12 published articles on the project activities and results, • 16 personalized training programmes of job shadowing in the duration of 5 days (in 8 flows), • 16 Europass Mobility documents for the participants, proving their acquired/ improved competences, • 16 letters of evaluation by the participants and their mentors, • plans for the future cooperation between the students of both grammar schools. Due to the strengthening of different competences of the participants and the transfer of innovative educational practices into the school's activities, the expected long-term objectives are: * the improvement in the quality of work at Gimnazija Lava, * the strengthening of the European dimension, * greater recognition and competition of the school on both local and European level, * greater satisfaction of key stakeholders (teachers, students, parents). The project was carried out between August 2014 and July 2016.