Techniques and arguments are provided for teachers interested in promoting second language program development in British schools. An introductory section presents an exercise for gauging and initiating an awareness of language needs and attitudes in department staff. The first section of the guide then outlines salient arguments, including those focusing on economic and educational benefits of second language learning, especially in the context of the emerging European Community, the case for devoting substantial resources to improve language teaching, and the case for more inservice education for language teachers. A self-assessment form designed to help language teachers think about their department's training and professional development needs is provided. The second section of the guide offers suggestions for tailoring thinking and arguments to appropriate audiences, including other departments, parents, and students. Lists of additional resources, related research and development projects, and useful agency addresses are appended. (MSE)