Physical Demands/Environmental Factors: Frequent district-wide travel; frequent prolonged and irregular hours; steady phone interactions; frequent standing, walking, stooping, bending, pulling and pushing, and carrying small stacks of textbooks, media, desks, and other classroom; may have exposure to biological hazards; occasional moderate lifting. Instruction is conducted in a two-way immersion program, where teachers fluent in English teach ELA and those fluent in Spanish teach SLA and are supported by teacher aides with a strong command of both languages.