The Erasmus+ project called 'Mind the Common Knowledge Mine! - Explore, excavate and enrich what's in your mind in the 21st century!' was aimed at meeting the current institutional needs of our school: Bálint Márton Primary and Secondary School in Törökbálint. Out of these needs the improvement of ICT competences is an important one since our institution has been one of the technologically best equipped state schools of Hungary, but we still have to improve a lot concerning the usage of technical facilities and our Moodle platform. Our 2nd important need is exploiting possibilities provided by our international partnerships and international trainings, and improving the international dimension of our institution, which - combined with the professional use of our modern ICT tools and the Moodle - could assist us in meeting other institutional needs such as: nurturing the students' talents, improving children with special needs, providing valuable free time activities, motivating students, constant improvement of our teachers’ linguistic and special competences, being well-prepared for the challenges of our ever-changing world, so constant renewal and innovation. During the two project years, we succeeded in reaching our goal: with the assistance of professional European partner institutions, we have prepared 14 colleagues linguistically and professionally to be able to renew their knowledge and motivation, to share what they have learnt on our Moodle as well, and to participate in our international co-operations. We have set up a common digital Knowledge Mine on our Moodle platform. In this way we have got an educational supplementary material bank, which will be continually updated, enriched, and where we can share useful ideas and the novelties that help us with our everyday work in any subject, at any level. Besides the 13 supported mobility activities (2+3 people attended a 2-week English language course combined with school visits in Exeter, United Kingdom in spring in 2015 and in 2016; 2+2 people attended a 1-week English language course in Limassol, in Cyprus in June and in September 2015; 2+2 people took part in 5-day job-shadowings at our partner schools in Heidenheim, Germany in April 2015 and 2016, and in Nakkila, Finland in April 2016), we have organised 2 extra mobility activities: 5-day museum visits and training in Romania in October 2015. Thanks to these 15 mobility activities 5 colleagues teaching the 1st four grades, 8 teachers teaching in the upper-primary and the secondary school sections, and the school psychologist could enrich and share their language and specialised knowledge and competences among international circumstances. Meanwhile they have brought prestige to our school and country, improved our successful partnerships, and started new ones. The planned change of attitude and methodological renewal have begun in all 3 sections (lower-, upper-primary and secondary) and in different work teams because there were English, Music, IT, Science, Hungarian, Maths, German, Folkdance, Sociology and History teachers as well among the project participants. Moreover, all our colleagues could attend the one-year English language courses and the 2 Moodle trainings organised in our school with the help of this Erasmus grant. Thanks to these opportunities, even those colleagues could improve their English language knowledge and ICT competences who didn’t take part in the 15 mobility activities. Furthermore, all of us have been able to learn a lot from the project participants’ reports. The following of the planned activities have been successfully accomplished: 1. Language preparatory courses for the active participation in international cooperation: a, at our school, b, on Cyprus c, in the UK. 2. Improvement of ICT competences with 2 trainings about the better use of our Moodle platform. 3. Subject specific and methodological improvement of our colleagues in different fields by a training and by observing lessons. Studying other educational systems, collecting ideas for the formation of the Digital Knowledge Mine, at 2 experienced partner schools. (Primary school teachers have taken part in job-shadowing in Finland, secondary school teachers in Germany.) 4. Creation of the Common Knowledge Mine on Moodle. 5. Dissemination and application of the acquired knowledge and good practice. In short, during the 2 years, 15 mobilities took part in 5 countries so that in every work team there should be colleagues who could enrich their personal experience that they can share with the others during trainings and in written reports, too. Thanks to this project, the improvement of our colleagues’ language and special competences and motivational renewal have been accelerated, which has a very positive effect on the whole of our institution, especially concerning the better exploiting of our international possibilities, because we can surely count on our project participants in further projects as well.