The Florida Department of Education has adopted Longman Cornerstone (elementary ESOL), Longman Keystone (English/Language Arts through ESOL), and Longman Keys to Learning (Developmental English through ESOL).

Longman Keystone is a multi-level program designed for students whose academic achievement is two or more years below grade level. Through Longman Keystone, students will quickly begin achieving academic success and be better prepared to transition to mainstream coursework across the curriculum.