REFERENCES
- National Research Council (NRC) . 1996 . National science education standards , Washington , DC : National Academy Press .
- Teachers of English for Speakers of Other Languages (TESOL) . 1997 . ESL standards for pre-K–12 students , Alexandria , VA : TESOL .
- Wong Fillmore , L. and Snow , C. 2000 . “ What teachers need to know about language ” . In ERIC Clearinghouse on Language and Linguistics , Washington , DC : Center for Applied Linguistics .
- World Class Instructional Design in Assessment (WIDA) Consortium . 2007 . English language proficiency standards and resource guide: Prekindergarten through grade twelve , Madison , WI : Board of Regents of the University of Wisconsin System .