The importance of family involvement in education is well documented, yet no studies have explored teachers’ conceptualization of family involvement for urban English Language Learner (ELL) students in science, technology, engineering, and mathematics (STEM) classrooms. We used an ethnographic approach to investigate middle school STEM educators’ perspectives on family involvement for Spanish-speaking ELL students. The analysis revealed that the participants recognized barriers to involvement for families of ELL students, yet maintained that families should communicate more and help with homework. One participant’s practices and expectations served as a contradiction to these patterns. Implications and recommendations for P-12 school policy and teacher education are emphasized.