This study surveyed 880 teachers across 33 schools in Arizona about their perceptions of the instructional policies for English Language Learner (ELL) students. The majority of teachers believed that the 4-hour English Language Development block intended to accelerate English proficiency was not helping ELL students catch up academically. Most teachers also believed that separating ELL students from English-speaking peers in this way was harmful. The study recommends that Arizona consider alternative instructional models to help ELL students succeed while still providing support from English-speaking peers.