Defne Caldwell


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

Defne graduated from Green Meadow in 1987. 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.  She also taught literature, college writing, and creative writing courses at Ramapo College in Mahwah, NJ for four years. Defne completed independent Foundation Studies under Signe Schaefer at Sunbridge College and is a certified high school English teacher.

Defne teaches high school English and drama, and is co-advisor to the Class of 2019. She serves on the Curriculum Development Committee and the Social Health Committee. Her older daughter graduated with the GMWS Class of 2016, and her younger daughter attended Green Meadow through 7th Grade.  

Alix Christofides


BS in Design, Empire State College, NY; MAT, English, Manhattanville College

Alix has taken courses and training through Sunbridge College, Bard College, NYSAIS (the NY State Association of Independent Schools), and AWSNA (the Association of Waldorf Schools of North America) and is certified to teach art and English in New York and New Jersey. She was mentored in Waldorf education at GMWS by David Blair, David Sloan and John Wulsin.

Alix taught at Bergen Community College and SUNY Empire before joining GMWS in 1997, starting out teaching English and reading in Grades 3-8. In addition to currently teaching high school English, art history, and drama in Grades 9-12, she has co-advised three classes and is currently with her fourth, the Class of 2019. She is a member of the Parent Alumni Committee and the Teacher Development Committee, and has served as faculty advisor for the high school literary magazine, The Burning Bush. She is the parent of two GMWS alumni.

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Christian Davis


BA, American Studies, Eckerd College; Waldorf Teacher Certification, Sunbridge Institute; Master's degree, Liberal Studies, City University of New York

Christian teaches high school history and co-advises the Class of 2021. 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 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 traveled with the circus. In his spare time, Christian enjoys playing and building fine mandolins. His eldest son attends Green Meadow.

Harlan Gilbert


Harlan's undergraduate education in mathematics and natural science took place at Yale University and Reed College. He received his Waldorf teaching certificate from Emerson College, England, his Master's in Education from Sunbridge College, and his PhD in Transformative Studies from the California Institute of Integral Studies. Along the way, he also studied eurythmy for three years at the Eurythmeum Zuccoli in Dornach, Switzerland.

Harlan serves on the schoolwide 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. One of his sons graduated with the GMWS Class of 2016, and and the other with the Class of 2018.

David Lowenthal

English as a New Language (ENL)

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

David 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. 

Kemal Lowenthal



BFA, Ceramics and Sculpture, Minor in Art History, School for American Crafts, Rochester Institute of Technology

M.Ed., Waldorf Elementary Education, Antioch University of New England

Kemal attended GMWS for 14 years and graduated in 2007. After completing his undergraduate degree, he taught for five years at the Maine Coast Waldorf School in Freeport, ME; subjects included woodwork, math, literature, art, 6th grade Geology, 7th grade Algebra, high school electives, drama (and Middle School Ultimate Frisbee coach). He also served as the elementary grades (1-8) Faculty Chair and sat on the Leadership Committee and the College of Teachers. 

Kemal was married in 2014 and celebrated the birth of his son in
December of 2016. He enjoys woodworking and practicing the system
of Reiki at the second level.

Joanne Monteleone

HIGH SCHOOL guidance

BA, Therapeutic Recreation, Theatre, San Francisco State University; MA, Educational Theatre, Emerson College, Boston; 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, and she also worked as an adjunct professor of drama. She has also worked as an assistant editor on Youth Theatre Journal and has co-authored drama education curricula.

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 Guidance Counselor Association (WPRCA). She is the chair of the Green Meadow Drug and Alcohol Committee and oversees senior internships and senior projects, in addition to continuing her study of anthroposophy.

Angela Nusbaum


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 and co-advises the Class of 2020.

Maskit Ronen


BS, Environmental Biology, Columbia University; BS, 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 and was part of 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 is the High School Chair. She also serves on the Social Responsibility Committee and the Diversity and Inclusion Committee. She enjoys doing handwork, strives to live holistically, and is interested in herbal medicine. Three of 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 taught physics, chemistry, and math at The Marymount School in New York City, where he was also the softball coach and the founder of the production set design club. 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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Joshua Samot

HS Mathematics

BA, Business Administration, Boston University

Before teaching at Green Meadow, Joshua taught all levels of high school math and SAT/ACT test prep at a private high school in Morristown, NJ. In the afternoons, he teaches the Algebra I, Geometry, and Algebra II regents curricula at a high school in Monsey. Additionally, Joshua has worked with many Green Meadow students over the past four years, providing extra support for math and test prep.