The purpose of this manual, which accompanies a video program, is to provide general background information for foreign language teachers who are, or soon will be, teaching in total, partial, or two-way immersion classrooms. Part of a series of video programs, this manual highlights special immersion programs for immersion teachers while planning for, implementing, and interpreting assessments in the immersion classroom. The program describes the following: planning assessment of content and language; using a variety of assessment tools; and using assessment results to gauge the effectiveness of instruction. This manual and the video program have been designed to complement each other and may be used in a variety of ways. Activities for assessing content and language, feedback, evaluation methods (including observation, conferences, interactive diaries, testing), and an evaluation plan (including record keeping) are the focus of the manual. Appended materials include a Spanish and French classroom scenario, an immersion planning sheet, an assessment planning sheet, and recommended background reading. (VWL)