A guide to the development of programs in English as a second language (ESL) outlines the program development process and necessary considerations. A foreword describes the two major types of limited-English-proficient (LEP) students and notes differences between LEP students in general and their monolingual English-speaking counterparts. Chapters address aspects of program development and implementation, including: (1) components of ESL program design (identification of the LEP students, language assessment tools, ESL teacher qualifications, and instructional materials); (2) the ESL classroom (scheduling and grouping, ESL teaching in the regular classroom, ESL lesson design, and activities for developing specific language skill areas); and (3) procedures and criteria for mainstreaming students. Lists of 13 references and 3 agencies that can serve as resources are included. (MSE)