Mission: Keller ISD is committed to providing an effective ESL program that supports the development of the cognitive, affective, and linguistic domains of the Limited English proficient student. Keller aims to achieve the highest performance standards by providing exceptional educational opportunities for all students.

Vision: Language Acquisition Department's vision is to ensure that our Emergent Bilingual students develop linguistic, cognitive, and academic skills to participate in rigorous environments and become competitive citizens of our society; through respecting and building upon unique cultural and linguistic attributes they bring to our learning community.