This report explores two bilingual educational approaches currently in use in Mexico and the United States. The study pursues a limited comparison between two modalities of bilingual instruction, as observed and reported in the consulted literature. The U.S. model featured is known as the two-way bilingual model, an additive approach to instruction. The Mexican Spanish/Tarahumara/Tepehuano bilingual educational model is discussed within the scope of this project. Both countries face the challenge in their educational systems of providing bilingual content area instruction to monolingual populations. Contains 38 references. (EH)