en español
Within TWI [two-way immersion] programs, how does the academic performance of native English
speakers compare to that of English language learners?
Native English speakers typically achieve at higher levels in English than do English language learners
(Howard, Sugarman & Christian, 2003). By middle school, native English speakers on average score
above grade level in standardized achievement tests of reading and math, while English language
learners on average approach grade level. However, students who begin elementary school as
English language learners and develop full oral and reading and writing proficiencies in English often
have a mean performance that is as high as or higher than that of native English speakers.
Parents' Questions about Two-Way Immersion (TWI). (2005). In E. R. Howard, J. Sugarman, M. Perdomo, & C. T. Adger. The two-way immersion toolkit. Washington, DC, and Providence, RI: Center for Applied Linguistics and The Education Alliance at Brown University. p. 177. Reproduced with permission.
http://www.alliance.brown.edu/pubs/twi/pdf_files/toolkit_all.pdf
