The project addresses an environmental problem: identifying a plant that is threatened with extinction and finding solutions to ameliorating it. The specific objectives are the following: - to consolidate student's learning abilities by involving them in experimental activities within natural sciences; - to consolidate cross-curricular education through exchange of scientific information and practical solutions to environmental problems common to different countries; - to acquire key transversal skills: digital, by creating digital materials for optional courses; interpersonal and civic skills by identifying an environmental problem which will be solved by working in teams and attracting the interes of the local community; entrepreneurial skills, by making an amelioration plan for the environmental problem from designing it to attracting resources and disseminating its result a larger public; - to extend students' participation in educational opportunities through practical activities in nature; - to develop innovating strategies in the teaching-learning process by creating an optional cross-curricular course taught in teams; - to develop linguistic and communication skills in English as well as the languages of the partners by using the final products; - to promote and consolidate the skills of the students and teachers with a view to using as efficiently as possible the opportunities created by the digital educational content developed in the final products of the project.