Immersion is defined as a method of foreign language instruction in which the regular school curriculum is taught through the medium of the language. The foreign language is the vehicle for content instruction; it is not the subject of instruction. Different questions pertaining to the following subjects are answered: (1) long-range goals of a program, (2) eventual effects on verbal and mathematical skills in English, (3) keys to successful programs, (4) advantages and disadvantages of total and partial immersion, (5) the best grade level to begin a program, (6) the commitment required for participants and their parents, (7) program staff, (8) materials used, (9) effect of immersion programs on existing foreign language programs, and (10) the number of students a school should plan for. (Contains 16 references.) (AB)