The project "We bet on English, we bet on development!" was created as a response to the growing needs of local community connected with the access to modern and constantly developing education. Zespół Szkół in Wola is a school based in the rural - industrial area. In the past, most of the inhabitants were employed in the coal mine. After having been closed, they have to look for employment in the surrounding cities or abroad. This situation, combined with the demographic decrease, influences local schools with the permanent problem with lower and lower number of students and regular problems with the first-graders in-take. The school combines two types of education: lower secondary school (gymnasium) and vocational secondary school providing education in the fields such as: hotel industry and catering. One of the main areas of school activity is foreign language teaching, mainly English, as well as international cooperation through participating in countless educational projects. So far, two Comenius projects have been completed, currently the second Erasmus+ project is in progress. Therefore, the students have an opportunity to develop thier language skills, contact with "live language" through participating in the international cooperation projects financed by the European Union. The skills acquired at school will improve the students` prospects for the further education as well as the chances to find employment in accordance with their qualifications in the future. To assure permanent development and make its offer more attractive, the school has decided to take the steps leading to offering bilingual education to its students in the future (with English as the main language). The project, which has just been completed, was created to achieve this goal. Its basic aim was to improve the language competence of the teachers of Zespół Szkół in Wola enabling the implementation of bilingual teaching in lower secondary school. 10 teachers took part in that project, being the teachers mainly of the science subject, namely: Mathematics, Phisics, Chemistry, Biology, ICT, economic subjects, as well as social science and religious education. Moreover, the school principal participated in the project. According to the plans, the project participants worked intensively on the improvement of their language skills. Each of them took part in three 2-week courses of English in language schools based in the United Kingdom (being as follows: Exeter, Oxford and Brighton) and participated in a language course organised by the sending organization during the whole project. The course was very intensive as each group followed the schedule of 2 classes a week, each of them 90 minutes long. Apart from the before-mentioned formal activities, the teachers participating in the project benefited from numerous activities aiming at language improvement, such as: watching British and American films in oryginal, participating in cultural workshops provided by native speakers of English, listening to audiobooks and podcasts in English, conversation meetings with other project participants. To summarise the project, all its participants took part in external language exams TOEFL or TOEIC to achieve a formal certification of thier language progress.The results of the exams confirmed the growth of language skills of all the project participants. Anyway, language skills are not the only valuable project results. As a result of participating in the project the teachers have acquired priceless cultural and interpersonal competences, as well as refreshed their teaching methodology. The project has provided them with self-assurance, self-esteem and improved their future working prospects, which can be essential when we take the currently announced education system reform in Poland into consideration. Remebering about the age of the project participants (90% above 40 and half of them above 50 years old) it can also be claimed that the teachers benefits inlude preventing the exlusion from the working market and softening the symtopms of overworking. The plans connected with closing down lower secondary schools (gymnasiums) in Poland do not mean resigning from the idea of bilingual teaching. As a result of the project implemented by Zespół Szkół in Wola, the remaining local schools would like to go further with the idea of bilingual teaching and start a system of bilingual education in local community offered to the students from primary school to high school. Thanks to that, the project has a chance to incorporate in a significant improvement of educational offer in the local community.