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, University of Washington/Empire State College, NY; MAT, English 7-12, Manhattanville College

Alix loves to teach Art History, Drama and English in the Green Meadow High School. This is her 23rd year as a GMWS teacher, preceded by seven years as a GMWS parent. Alix has taken courses and training through Sunbridge College, Bard College, NYSAIS and AWSNA, and is certified to teach art and English in New York and New Jersey. She was trained in Waldorf education at GMWS by David Blair, David Sloan and John Wulsin.

Alix has co-advised four classes, and is proud to be the new advisor of her fifth class, the class of 2022. She has taught guest blocks at the Maine Coast Waldorf School, and has been a consultant at the Seattle Waldorf School. She is a member of the Parent Alumni Committee and is co-chair of the High School. She is the parent of two awesome GMWS alumni, and grandmother of an aspiring GMWS student. Poetry, voracious reading and travel have long been her passions.


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.


Vicki Larson

English as a New Language (ENL)

BA, English, University of Florida; Certificate in Spanish-English Translation and Interpretation, Hunter College; TEFL Certificate

Vicki joined Green Meadow in December 2007. Prior to coming to the school, she spent seven years as Development Director at MADRE, an international women's human rights organization based in Manhattan. Her background is in fundraising, resource development, community organizing, editing, publishing, and teaching English and Spanish. She serves on the Diversity & Inclusion Committee and The Bulletin Committee, and also teaches Practical Math to 12th graders at Green Meadow. 

Originally from New Haven, CT, Vicki discovered Waldorf Education in college, when she worked at the Waldorf School in Gainesville, FL. Her daughter attends Green Meadow.

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.


Lauren Colón

School Counselor

BA, Psychology, Minors Spanish and Political Science, Boston University; MSW, Silberman School of Social Work at Hunter College

Lauren is a licensed clinical social worker who developed her counseling skills through experience in a variety of settings over the course of the past 10 years. She has worked with a range of clients from toddlers to older adults. 

Lauren focuses her work on restoring hope by using a strengths-based approach to building self esteem and developing concrete coping skills for behavioral health symptoms.  In addition to these expertise, Lauren has substantial experience in providing treatment for addiction and substance misuse and working with family members of those suffering from substance use disorders.

Lauren has a strong commitment to cultivating self awareness and personal goal achievement by finding natural balance and rhythm.  She is currently pursuing her Horticultural Therapy Certification with the New York Botanical Garden and incorporates plant life into her practice to promote psychological well-being; exploring themes for wellness that have been embedded in nature since the beginning of time.

Christina Roberts

Life Sciences and Mathematics

M.Ed, Science Education, City College of NY; JD, Brooklyn Law School;  BA, Philosophy, SUNY Stony Brook

Christina taught high school Biology and Earth Science for eight years in NYC before joining Green Meadow.  While teaching, she spent two summers as a visiting scholar at Columbia University, where she worked on a research team under the guidance of Columbia University faculty. She presented research at a national conference during oral and poster presentations, entitled “Defects of the Enteric Nervous System Resulting from Inhibition of the Serotonin Transporter (SERT) During Development,” as well as contributing to peer-reviewed research published in Gastroenterology

Christina has participated in fieldwork exploring the impacts and management of invasive species in the Hudson Valley, and worked on a sea turtle conservation project in Costa Rica. 


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.