This guide provides teachers and administrators with advice on implementing Alberta Learning's five-level English-as-a-Second- Language (ESL) Senior High School Program of Studies in their classrooms and schools. It draws from the collective expertise of senior high school ESL specialists and classroom teachers and from classroom-based research in the fields of first and second language acquisition. The five chapters include the following: (1) "ESL Students" (e.g., learning ESL, second language learning, developing communicative competence, and language proficiency profile); (2) "Students and the ESL Program" (e.g., ESL Senior High School Program of Studies goals, rationale, philosophy, and organization and levels profiles); (3) "Planning the ESL Program" (e.g., placing ESL students, curriculum connections, cross-curricular units, adjunct language instruction, and language learning strategies); (4) "Planning for Teaching and Learning" (e.g., linking language and content, planning models, and language learning tasks, activities, and exercises); and (5) "Assessment: Putting the Puzzle Together" (e.g., purposes, principles, and kinds of assessment and assessment through the five levels). The guide includes sample forms and units from classroom teachers across Alberta as well as student writing samples. (SM)