A guide to instruction in English as a second language (ESL) in Alberta's junior high schools describes approaches and techniques to promote the language development of ESL students in all areas of the curriculum. The first section outlines the stages of cross-cultural adaptation and their implications for the classroom teacher. The second section reports on research on the characteristics of language, components of communication, and implications for second language learning. Section three addresses the particular needs of adolescent ESL students and how these needs may be met, including program options, support programs within the regular classroom, program design, content area teaching, use of paraprofessionals and volunteers, the role of support staff, and peer tutoring. The fourth section looks at assessment, evaluation, and placement techniques and reporting procedures. Instructional approaches and classroom techniques, including the effective use of equipment, are examined in the fifth section, and the final section provides suggestions for selecting resources for language and concept development and gives information on professional development opportunities and resources. Varied and substantial instructional materials and teaching suggestions are appended. (MSE)