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High School Faculty

Defne Caldwell, English and Drama

BA, Literature, Boston University; MA, Teaching, Fairleigh Dickinson University.

Before joining the Green Meadow faculty full-time in 2006, Defne taught English and Humanities for six years at Ramapo Indian Hills High School in Franklin Lakes, NJ, and taught literature, college writing, and creative writing courses at Ramapo College in Mahwah, NJ, for four years.

Defne teaches high-school English and Drama. She is the High School Chair, serves on the Collegium Committee, the Curriculum Development Committee, and the Social Health Committee. Defne served on the Green Meadow Board, as the English Department Chair, and as a class advisor for the classes of 2011 and 2015. Her eldest daughter graduated from Green Meadow in June 2016.

Alix Christofides, Humanities and Drama


BS, Art History/Design/Film, Empire State College, NY; MAT, English, Manhattanville College. Alix has taken various courses and trainings at Sunbridge College, Bard College, NYSAIS, and AWSNA, and is certified to teach art and English in New York and New Jersey.



Alix has taught English and reading in Grades 3-12 at GMWS. She also has the great privilege of teaching the high school Art History and Architecture blocks. Alix was a co-advisor for three classes. She has been teaching at Green Meadow since 1998, and is the parent of two GMWS alumni.

Christian Davis, History

BA, American Studies, Eckerd College, Waldorf Teaching Certification, Sunbridge Institute

Christian teaches high-school History and co-advises the class of 2016.

For 12 years before coming to Green Meadow, Christian worked to develop the Suncoast Waldorf school in Florida, as the lead teacher for the first graduating class. In this pioneer school, he had an opportunity to teach many subjects, but has found his passion in teaching History.

Previously, Christian had worked as a counselor for at-risk youth and troubled adults at the anthroposophically inspired Gheel House. He studied permaculture in Hawaii and even travelled with the circus. In his spare time, Christian enjoys playing and building fine mandolins. His eldest son attends Green Meadow.

Harlan Gilbert, Mathematics

Undergraduate education in mathematics and natural science at Yale University and Reed College, and in architecture at the Boston Architecture Center. Waldorf teaching certificate, Emerson College, England; Eurythmy training, Eurythmeum Zuccoli, Dornach, Switzerland; Master's in Education, Sunbridge College.

Harlan serves on the school-wide Math Curriculum Committee. Several of his articles, including "Rhythm in Nature," have been published in Lilipoh, in the Waldorf Education Research Institute Bulletin, and in Golden Blade yearbooks. Harlan's book, At the Source: the Incarnation of the Child and the Development of a Modern Pedagogy, was published by AWSNA Press in 2005.

Harlan has been teaching at Green Meadow since 2002. He has a son who graduated with the Class of 2016 and another child in the school.

Lisa Krogh, Mathematics and Computer Science

Lisa began her professional journey after achieving her Honors BMath (Computer Science) degree at the University of Waterloo. She designed and developed business computer systems for corporations (introducing new technology to adults) while living in Canada, Europe, and the US, eventually launching her own consulting practice.

While raising her three children, she entered the world of Early Childhood Development and attained her MSc in Education from Niagara University. She taught at Montessori, public, and private schools before beginning her journey into Waldorf Education. She is a graduate of Foundations of Anthroposophy, and the certificate for Waldorf High School Teaching, from the Center for Anthroposophy in Wilton, NH.

Lisa began Waldorf teaching as the Third Grade class teacher at the Aurora Waldorf School in West Falls, NY, and most recently taught middle-school and high-school mathematics and life science for five years at the Emerson Waldorf School in Chapel Hill, NC.

Lisa joined Green Meadow to be part of strong and well-established faculty, and help grow the middle-school and high-school math and computer science offering. Her son Niels is completing high school in Europe, daughter Sophia graduated with the Class of 2016, and her youngest, Ana, still attends Green Meadow.

Jeana Lee, Chemistry and Mathematics

BA, Chemistry, Smith College; Waldorf Teacher Certification, Center for Anthroposophy, Wilton, NH.

Jeana taught in the Geography Department at the University of Colorado-Boulder before beginning Waldorf teacher training in 2012. She served as a guest teacher at both Shining Mountain Waldorf School and Tara Performing Arts High School in Boulder, CO. Previously she worked in environmental science and data management.

Jeana is an avid hiker and enjoys the alchemy of cooking.

David Lowenthal, English as a New Language (ENL)

BA Psychology, SUNY Buffalo; MAT ESL, Fairleigh Dickinson University


David recently retired from teaching ENL at Ramapo High School after 32 years. He was also an adjunct professor at Bergen Community College for over 15 years. David enjoys martial arts movies and practices Tai Chi. His two children are Green Meadow graduates. 

Patrick McCarthy-Nielsen, High School Support

BA, St. John's College in Annapolis, MD; MS Ed. Sunbridge College and the University of Illinois. 

Patrick first came to Chestnut Ridge in 2006 to join the full-time Waldorf teacher training program at Sunbridge College. Since 2004, he has worked as a tutor and instructor for English writing and for SAT/ACT/GRE test preparation. Currently, he is working toward a Waldorf High School teacher certification from the Center for Anthroposophy. In 2015, he returned to Chestnut Ridge with his wife, Ashlee, to join the Green Meadow faculty.

Joanne Monteleone, High School Guidance Counselor

BA, Therapeutic Recreation, San Francisco State University; MA Educational Theatre/Directing, Emerson College, MS School Counseling, Long Island University

 Joanne has worked as a Counselor, Theater Director, Drama Teacher, and Recreation Therapist for the past 24 years. She began her career in San Francisco, working as a Recreation Therapist in both educational and clinical settings with various populations, including youth at risk, brain injured patients, and AIDS patients. Her work in the theater includes both professional and academic directing credits, with plays produced at Manhattanville College, Manhattan College, and Ramapo College, where she also worked as an adjunct professor, teaching classes in all areas of drama and speech communication. She has also worked as an assistant editor on Youth Theatre Journal and has co-authored drama education curricula for young adolescents.

After completing extensive internships in guidance counseling at Suffern Middle School and Spring Valley High School, Joanne received her Master's degree in school counseling in May 2010. She is an active member of the National Association for College Admission Counseling (NACAC) and the Westchester, Putnam, Rockland County Association of Guidance Counselors (WPRCA).

Joanne is the Chair of the Green Meadow Drug and Alcohol Committee and oversees the senior internships and Senior Projects. Joanne looks forward to continuing her study of anthroposophy.

Angela Nusbaum, English

BA, St. John's College, Santa Fe, NM.

Angela has taught high-school English and history at the San Francisco and Chicago Waldorf schools. Previously, she worked with young adults at Job Corps, teaching math, and led interdisciplinary seminars for grades 6-12 in Anchorage, AK. She has two children at Green Meadow.

Maskit Ronen, Life Sciences

B.Sc., Environmental Biology, Columbia University. B.Sc., Management and Computer Science, Open University,Tel Aviv, Israel. Maskit received her teacher training in the Israeli Defense Force, where she taught in a prestigious programming course. She completed Foundation Studies in Anthroposophy at Sunbridge College (2008) and joined the fifth cycle of the Applied Arts Program at the Fiber Crafts Studio. 


Maskit teaches earth science and life science in the high school and serves on the Social Responsibility Committee and the Diversity Committee. She enjoys doing handwork, strives to live holistically and sustainably, and is interested in herbal medicine. Maskit's four children attend the school.

Jim Rowe, Mathematics and Physics

BA, Chemistry, Williams College; Current student in Waldorf High School Teacher Training, Antioch University New England, Wilton, NH

Jim began teaching physics, chemistry, and math in 2002 at The Marymount School in New York City, where he was also the softball coach and the founding moderator of the set design club for drama production. In 2007, Jim opened a bar and restaurant in Brooklyn, which is still in operation. He has tutored middle school, high school, and college students extensively since 2003 for academic physics, chemistry, and math as well as SAT subject tests, AP exams, and the SAT.
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