This volume of articles is a report from the national teacher in-service development program in teaching content through a foreign language at the Continuing Education Centre of the University of Jyvaskyla, Finland. This publication is mainly in English, because of the basic rationale of the Teaching Content through English (TCE) programme, and because dissemination of information on this approach is not only for educators and administrators in Finland, but also for those in other European countries, where bilingual education and its development continue to be of increasing interest. Articles in this volume include the following: "Language Learning and Bilingual Education: Theoretical Considerations and Practical Experiences" (Anne Rasanen); "Framework and Implementation of the Jyvaskyla TCE/TCFL Programmes" (David Marsh and Anne Rasanen); "The TCFL Network" (David Marsh); "Diploma of Proficiency in Teaching in English" (Sauli Takala); "Action Research in the Classroom" (Sauli Takala); "Teaching Content through a Foreign Language Is a Matter of School Development" (Viljo Kohonen); "Developing Language Teaching in Finland: Where Does Content-Based Language Teaching Fit?" (Sauli Takala). A final section, in Finnish, provides experience reports from the field. Teaching content through a foreign language is discussed for the elementary through college level. Also, in-service development programs in areas such as hotel-restaurant, domestic, and health care are discussed. (CK)