Inquiry Systems Ltd.

Systems Consulting for Social Science and Educational Inquiry


Thomas & Collier Research and Evaluation Work in Dual Language Education



Our goal

is to provide local, state, national, and international

agencies with action-oriented analyses and information

they can use to successfully refine and improve their

education programs, and to document and validate their

successes. We specialize in school-based programs and

research for "at-risk" students, especially students whose

first language is not English.







  Our services

  • Social Science Analyses
  • Education Research
  • Writing Professional Books and Other Publications
  • Program Evaluations


  • Keynote Speaking
  • Professional Development Training for Schools, School Districts
  • Consulting for Local, State, National, and International Agencies

  Recent Publications

       for more detail and additional titles , please click here


Collier, V.P., & Thomas, W.P. (2014).

Creating Dual Language Schools for a Transformed World:  Administrators Speak.

Albuquerque, NM: Dual Language Education of New Mexico – Fuente Press.


Click here for sample material


This book shares the stories of experienced dual language administrators across the country as they plan, implement, and refine their dual language programs in a variety of settings. The Collier and Thomas narrative links these stories with research, theory, and connections to larger contexts.


If you are interested in the benefits of dual language schooling for your community, you need to read this book and hear what these very experienced dual language administrators have to say.



This White Paper, written by staff of the Joint National Committee for Languages for purposes of informing federal and state policy, is a summary of our book titled Dual Language Education for a Transformed World.


Groom, D., & Hanson, R. (2013). Dual language education can close achievement gap. Washington, DC: Joint National Committee for Languages-National Council for Languages and International Studies.


Click here to download this paper and other policy papers from JNCL-NCLIS.



Article about our research in North Carolina


Maxwell, Lesli A. "Dual-Language Programs Take Root in N.C." Education Week 34.08 (Oct. 2014): 1, 14-15.


Click here to read article.



Education Week