Phone: 817-815-2200


Degrees and Certifications:

Texas Wesleyan College - B.A. Texas Wesleyan University - M.S. Education Texas Christian University - Supervisor Leadership Certification

Mrs. Guadalupe Barreto, Principal

Mrs. Barreto started her career in education with FWISD and has been dedicated to closing the achievement gap for our students for nearly 40 years.  Her studies and research have focused on best practices in language acquisition.  As a former Bilingual/ESL Teacher, she discovered that her students were very gifted and honed on practices that led her to develop staff development for teachers.  She delivered  the trainings through the Bilingual/ESL Department and as a Consultant in various districts in the Metroplex.

Several years later, she became the Director for Elementary ESL which provided her the opportunity to service a large population of language learners from all over the world. 

In 2013, she was appointed to the principalship and given the opportunity to develop and plan the first secondary language school in FWISD now better known as World Languages Institute.  

Mrs. Barreto has the philosophy to enjoy her work as related in the Chinese Proverb - "If you enjoy what you do, you will not work another day in your life."

Her work in the field has given her the opportunity to be an Adjunct Professor for Texas Christian University and Texas Wesleyan University.

Outside of work, Mrs. Barreto enjoys gatherings with family and friends, going to the movies, traveling, playing with her five beautiful grandchildren, working around her yard and reading a good book on a rainy day!

Her professional signature includes the following: "Learning flourishes where diversity is valued"

Phone: 817.815.2200


Degrees and Certifications:

University of Texas, Arlington - B.A. International Business, Spanish - M.Ed. Educational Leadership & Policy Studies

Ms. Marie-Lise Mosbeux, Assistant Principal

Marie-Lise Mosbeux is a trilingual Belgian native.  Besides her native French, she fluently speaks Spanish and English.   She earned both her Bachelor’s degree in International Business/Spanish and her Masters in Educational Leadership & Policy Studies from the University of Texas at Arlington.

After working for the International Department of the Dallas Chamber of Commerce, and the Flanders Investment Office, she decided to come to the educational field.  She has served in different capacities for the district.  She began as a bilingual teacher, became a literacy coach and completed the FWISD Aspiring Principal Program.

She has been the Assistant Principal at World Languages since its inception in 2014.