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The guide is intended for teacher trainers providing pre- and in-service programs for mathematics, science, and language teachers, and designed to accompany a 34-minute videotape recording of the same title (not included here), to help teachers integrate language learning and academic mastery in math and science. The video was created for a teacher training program for schools with high proportions of ethnic- and linguistic-minority students, but has been effective with native-English-speaking students who have difficulty with the specialized languages of math and science. It is consistent with guidelines of major math and science teaching associations. The video illustrates ways in which language, math, and science teachers can promote classroom discourse characterized by inquiry, problem-solving, clarification and justification of ideas, and teacher-student interaction. It uses a documentary approach, with examples from elementary, middle, and high schools nationwide. The guide describes the videotape and provides suggestions for pre- and post-viewing discussions. Post-viewing discussions are based on specific ideas presented in the video, focusing on: (1) linguistic and cultural factors in math and science education, (2) techniques for increasing classroom communication, and (3) need for interdisciplinary cooperation. A list of related contacts and a brief bibliography are appended. (MSE)