24 Helsinki 1975 interest to the participating States, especially the problems of human environment and urban development; and scientific studies on the methods of conserving and restoring monuments and works of art. (d) Foreign Languages and Civilizations To encourage the study of foreign languages and civilizations as an important means of expanding communication among peoples for their better acquaintance with the culture of each country, as well as for the strengthening of international co-operation; to this end to stimulate, within their competence, the further development and improvement of foreign language teaching and the diversification of choice of languages taught at various levels, paying due attention to less widely-spread or studied languages, and in particular: • to intensify co-operation aimed at improving the teaching of foreign languages through exchanges of information and experience concerning the development and application of effective modem teaching methods and technical aids, adapted to the needs of different categories of students, including methods of accelerated teaching; and to consider the possibility of conducting, on a bilateral or multilateral basis, studies of new methods of foreign language teaching; • to encourage co-operation between institutions concerned, on a bilateral or multilateral basis, aimed at exploiting more fully the resources of modem educational technology in language teaching, for example through comparative studies by their specialists and, where agreed, through exchanges or transfers of audio-visual materials, of materials used for preparing textbooks, as well as of information about new types of technical equipment used for teaching languages; • to promote the exchange of information on the experience acquired in the training of language teachers and to intensify exchanges on a bilateral basis of language teachers and students as well as to facilitate their participation in summer courses in languages and civilizations, wherever these are organized; • to encourage co-operation among experts in the field of lexicography with the aim of defining the necessary terminological equivalents, particularly in the scientific and technical disciplines, in order to facilitate relations among scientific institutions and specialists; • to promote the wider spread of foreign language study among the different types of secondary education establishments and greater possibilities of choice between an increased number of European languages; and in this context to consider, wherever appropriate, the possibilities for developing the recruitment and training of teachers as well as the organization of the student groups required; • to favour, in higher education, a wider choice in the languages offered to language students and greater opportunities for other students to study various foreign languages; also to facilitate, where desirable, the organization of courses in languages and civilizations, on the basis of special arrangements as necessary to be given by foreign lecturers, particularly from European countries having less widely-spread or studied languages; • to promote, within the framework of adult education, the further development of specialized programmes, adapted to various needs and interests, for teaching foreign languages to their own inhabitants and the languages of host countries to interested adults from other countries; in this context to encourage interested institutions to cooperate, for example, in the elaboration of programmes for teaching by radio and television and by