Quest High School’s English Language Development (ELD) Program serves students who need assistance learning English. Arizona law requires that students with a home language other than English be assessed for proficiency in oral language, reading comprehension, and written communication. Based on the results of the assessment, students may be placed in the English Language Development Program designed to aid them in acquiring English. ELD services at Quest High School are integrated into all curriculum by way of SIOP instruction. SIOP (Sheltered Instruction Observation Protocol) is a researched based educational practice that emphasizes language development in every course.