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L I T T L E T O N    C E N T E R

All of our full-time instructors hold advanced degrees or have completed special coursework in English as a second language, linguistics, or a related field. They have an average of 12 years experience teaching foreign students in the United States and abroad. 


Pambos Polycarpou, President and Co-Founder

Pambos, originally from Cyprus, was a Fulbright Exchange Scholar at Colorado College where he graduated with a B.A. in English Literature.  He received an M.A. in Teaching English as a Second Language and a M.Ed. in English Education at the University of Arizona.  He also completed course work for a Ph.D. in Philosophy of Education at Indiana University.  He is one of the founders of Spring International Language Center.  He enjoys skiing and travel.

*2012 Winner, CoTESOL Gladys Doty Award for Outstanding Contribution to the Profession


  Shirlaine Castellino, Director

Shirlaine has B.A. and M.A. degrees from Silliman University in the Philippines. She holds an additional MATESL from the University of Illinois at Urbana-Champaign. In addition to four years of teaching at Silliman University, Shirlaine was Composition Coordinator and Teaching Associate at the Intensive English Institute, University of Illinois for three years. After moving to Colorado, Shirlaine worked as the ESL and Day-Treatment Coordinator at the Asian Pacific Center. Shirlaine and her family love to travel and have visited over 70 countries.

    Andy Pulford, Assistant Director

Andy holds an M.A. degree in Intercultural Studies and Teaching English to Speakers of Other Languages from Wheaton College and a B.A. Degree in Biblical and Theological Studies from Williams Baptist College. In addition to teaching with World Relief DuPage, College of DuPage, Elgin Community College, American Cultural Exchange, and Arkansas State University, he served as the Program Director for the American Cultural Exchange Language Institute at Arkansas State University before joining the Spring International Language Center team. He is happily married and spends a great deal of time with his wife and two children.

  Susan Polycarpou, Academic Coordinator

Susan is a native of Colorado. She majored in German Literature at Colorado College and received her M.A. degree in teaching English as a second language at the University of Arizona. After studying and teaching in Germany, she lived in Cyprus, where she taught English to junior and senior high school students. For the last twenty years she has been teaching in intensive English programs in Colorado. Susanís interests include reading, movies, hiking, and skiing. She is the co-author of a writing text and a reading text for beginning levels.

    Colleen McGovern, Curriculum Coordinator

Colleen has many years of experience teaching and administering ESL programs both in the United States and abroad in Hungary, Tunisia, and the Democratic Republic of the Congo. In the United States she has taught at the University of Denver, the Economics Institute, Boulder, and the International English Center at the University of Colorado. She has an MFA in Writing and Poetics from Naropa University in Boulder; an M.A. in International Studies from Ohio University, and a B.A. in English from the University of Northern Iowa.

            O F F I C E   S T A F F  
    Nicole Esteve, Executive Assistant, DSO

Niki has a B.A. degree in Sociology from Mesa State College. Before Spring, she was an International Student Advisor and Registrar at another Intensive English program. Prior to that, she taught English in Madrid, Spain for four years. Her hobbies include photography, snowboarding and travel.

    Missy Hull, Housing Coordinator

With an A.S. degree from Arapahoe Community College and a B.S. degree from Metropolitan State University of Denver in Administration of Justice, Missy has worked in a counseling center for troubled adolescents and volunteered with a program for developmentally disabled persons.  Her hobbies include exercising in the gym, riding her road bike, traveling and watching her son Ben play ice hockey.  She lived in Egypt for four years and has traveled in Europe and the Middle East.


Debby McBride, Office Administrator

Debby has studied at the University of Idaho and Arapahoe Community College.  She was the executive assistant at Spring International when it began on the Auraria campus.  She currently hosts students for Spring at Arapahoe and is a Sales Director with Mary Kay Cosmetics, a direct sales company.

            T E A C H I N G   S T A F F  
    Lisa Blackburn has been teaching English as a Second Language for 13 years, both in public and private schools. She has an M. Ed. from Regis University, a B.A. from Simon Fraser University, and an ESL certificate from the University of Saskatchewan. This is Lisa's second turn at teaching at Spring International Language Center and she is very glad to be back. In her free time, Lisa enjoys reading, walking her dog, and making her garden bigger and stranger.  
    Susan Blahut has a B.A. in Intercultural Communications and finished two years of graduate studies in Linguistics at the University of Kansas. After having lived and worked in Germany for 11 years, she has recently moved back to the U.S. Although she enjoyed her time in Europe and teaching primarily German students, she is excited to be back in the international classroom after so many years.  
    Karyl Chalfin earned her BS in Education from Lesley College in Massachusetts and her MA in Reading and Language from the University of Massachusetts. She has obtained her TESOL certificate from CU Denver. She has taught elementary school and Developmental Studies Reading and Writing classes at Arapahoe Community College. Her interests include: reading, hiking, yoga, and traveling.  
    Susan Feringer-Coury has a BA in History and Education from the University of Washington. Upon graduation, she moved to Boston where she taught high school and received her Master's Degree in Education. Susan worked in Tokyo, Japan for eight years teaching at Linguaphone English language center as well as tutoring Japanese government officials and businessmen in English. She studied Chinese in Beijing and traveled extensively throughout 36 countries. For over twenty years, she has hosted students in her home from all over the world. Currently, she is finishing up her TESOL Certificate at the University of Colorado Denver.  

Tom Rohrbach, IT Coordinator, received his M.A. degree in Education from the University of New Hampshire in 1978 and a B.A. degree in English from Muhlenberg College in 1976. Tomís overseas experience includes two years of teaching in Japan. He has been teaching with Spring International at both Colorado locations for many years.

*2009 Winner of the Presidential Award for Outstanding Contribution to CoTESOL

    Alice Roussel has an MA in Applied Linguistics from Edith Cowan University in Perth, Australia, where she lived and worked as an ESL teacher before moving to Denver. She has taught General/Academic English, Business English and IELTS exam preparation for over 8 years in Canada, China and Australia. She enjoys traveling, cooking (and eating!), and meeting people from other cultures.  
    Sarah Siddique is from North Carolina. She received her B.A. degree in Psychology from The University of North Carolina at Charlotte, and an M.A. degree in TESOL from the School for International Training Graduate Institute in Vermont. She absolutely loves working with students who are learning and studying English and has taught in adult language education programs throughout the United States, as well as in Cambodia. She enjoys all things outdoor related, in addition to traveling, watching movies, eating delicious food, and building friendships with people from all over the world.  
    Kristine Wallace holds a B.A. from University of Colorado and M.A. from Grand Canyon University. She has studied at the University of Guadalajara, Mexico, and in Cadiz, Spain. She also enjoyed teaching English while living in Mexico. Kristine has taught elementary school in the Denver area, as well as working with children in Mexico. She enjoys running, traveling and playing with her children.  
    Parmelee Welsh holds a B.A. in English, an M.A. in TESL from the University of Southern California, Rossier School of Education, and a Cambridge Certificate in English Language Teaching to Adults. She taught in England and at the University of Akron, Ohio before joining Spring International Language Center. Her enthusiasm for teaching ESL comes from a strong interest in the students and their cultures. She has traveled to over 36 countries, but she also likes being home in Colorado enjoying outdoor activities with her family and friends.  


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