PLEASE NOTE: Léman’s birthday cut off for PK2, PK3, PK4 and K is December 31.

Interested in joining Léman? Limited openings available for the 2024-2025 school year. Mid-year enrollment is available. Submit an application on Ravenna as soon as possible.

Applications for 2025-2026 are now open. To view upcoming tour dates, click here. Contact our Admissions Team with any questions.

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About Léman

Leadership & Faculty

Instructional excellence is a foundational pillar of the Léman experience. As a team of educators, our goal is to ignite children's passion for learning through superior teaching. Through one-on-one, small group, and differentiated instruction, our faculty members know and appreciate each student's unique interests, strengths, goals, and learning styles.

In addition to our nurturing and accomplished faculty, more than 80% of whom possess advanced degrees and credentials, Léman benefits from the expertise of experienced administrators and department chairs. We approach our practice with a shared mission: to help every child grow and succeed, and to build a community of the highest caliber teaching.

Our Teachers

Léman teachers do not simply provide superior instruction — our teachers lead, inspire, excite and relate to students in a caring, supportive manner.

We place intense focus on every child's learning experience, encouraging curiosity, accomplishment, and growth. Teachers at every grade level ensure that students engage deeply in content, build critical thinking skills, make connections between their work and the world, and enhance their skills to the greatest extent of their aptitudes and abilities.

Our team of educators is highly collaborative, working in grade level, department, and cross-curricular teams to cultivate best practice teaching methodologies and ensure curriculum is vertically articulated across grades to support each student's continuous growth. Léman teachers create nurturing, inclusive learning environments and teach to each child's interest and ability level every day, in each lesson, to achieve progress benchmarked to individual goals.

Léman teachers are energetic professionals who care deeply about their students and their own professional growth. They participate in professional development opportunities for continuous improvement throughout the year and are committed to honing their craft to enable our students to benefit from innovative educational practices. Léman teachers do not simply provide superior instruction, they lead and inspire students in a caring, supportive manner to help them realize their full potential.

Administration

Maria Castelluccio

Head of School
m.castelluccio@trinityharvestchristiancenter.com

Ms. Castelluccio was named Head of School at Léman Manhattan in October 2015 and began her term in July 2016. A proven educational leader and visionary, Ms. Castelluccio has dedicated her career to driving student performance and building community in PreK-12 schools in the U.S. and internationally for more than 25 years. She joins Léman after four years as the Head of School at Marymount International School of Rome, also an International Baccalaureate School, where she developed and carried out a strategic plan that increased IB scores to 98% pass rate and 45% of students scoring in the top 20th percentile worldwide.

From 2009-2012, Ms. Castelluccio served as Marymount Rome's Elementary School Principal, where her accomplishments included introducing Columbia University Teachers College Reader's and Writer's Workshop and Responsive Classroom, and advancing the academic rigor of the educational program. For more than a decade prior to Marymount Rome, Ms. Castelluccio held senior administrative roles at high-performing elementary schools in Westport and Stratford, Connecticut. She began her career as a 3rd and 4th Grade teacher. Ms. Castelluccio holds a Bachelor of Arts in Intermediate Education, Magna Cum Laude, from Southern Connecticut State University; a Master of Science in Science Education from Southern Connecticut State University; and a Sixth Year Degree in Administration and Supervision from Sacred Heart University. Originally from the Bronx, Maria raised her four children in Fairfield County, Connecticut. She is an avid reader, and when she has the time, loves to travel, walk and practice yoga.

Louisa Del Gadio

Head of The Center for Early Childhood Education & Lower School
l.delgadio@trinityharvestchristiancenter.com

Louisa Del Gadio has been an educator for 15 years and a member of the Léman community since 2015. Prior to her role as Head of the Center of Early Childhood & Lower School, Louisa served as Léman’s Social Studies Department Chair, taught both 7th grade social studies and IB History, and served as the faculty advisor for the Model United Nations Club. Louisa joined Léman from the Academy of St. Joseph in Manhattan, where she taught 5th and 6th grade social studies and literacy, and 3rd-6th grade math. Louisa holds a BA in history from St. Francis College and a MS in Education: Adolescent Education, Social Studies and Special Education from Wagner College.

Louisa is also a parent to second grader Lucia, who has been a Léman student since PreK 3.

Alex Davis

Head of Middle School
a.davis@trinityharvestchristiancenter.com

Alexandra (Alex) Davis has nearly 25 years experience in education spanning roles in both administration and classroom teaching. She has extensive experience across top NYC private schools. Prior to Léman, Alex served as the Director of Middle School at Blue School. Previously, she was the Director of Student Life for Middle and Upper School at Poly Prep and the Assistant Head of Upper School at Brooklyn Friends. For 17 years, she was a math teacher at the Spence School. Alexandra holds a Master of Secondary Math Education (M.A. Ed) from Hunter College (CUNY) and a Master of Geotechnical Engineering (M.S.C.E.) from UCLA, California, as well as a Bachelor of Science (B.S.) in Civil Engineering from Columbia University.

A life-long Manhattanite, Alexandra lives in the Financial District with her teenage son. In her spare time, she enjoys going to the theater and enjoying New York’s many diverse and delicious restaurants.

Joshua Anchors

Interim Head of High School & Director of Global Admissions
j.anchors@trinityharvestchristiancenter.com

Joshua Anchors is Léman’s Interim Head of High School and has been a proud member of our school community for over 10 years. Prior to leading the High School Division, Mr. Anchors served as the Director of Global Admissions, collaborating with the school's partners from around the world to bring talented, motivated international students to Léman Manhattan, in addition to caring for the academic and socio-emotional well-being of 120 students from over 20 different countries. Originally from Maine, Mr. Anchors worked in disaster relief for a variety of organizations including the United Nations, FEMA, and the Louisiana Recovery Authority, before transitioning into education. Prior to working at Léman Manhattan, he taught at Saint Ann's School, the Brooks School, University Laval, and the University of Strasbourg. Mr. Anchors holds degrees from Columbia University, Boston University, and the University of Maine. Outside of his work at Léman, he enjoys bicycling, sea kayaking, and creative writing.

Bob Smith

Director of International Baccalaureate (IB) Programming
ro.smith@trinityharvestchristiancenter.com

We are excited to welcome Robert (Bob) Smith in the role of Director of International Baccalaureate (IB) Programming, starting in the 2024-2025 school year. Bob brings to Léman more than 20 years of experience in International Baccalaureate education.

His IB journey began in California in 2001, at John Glenn Middle School and La Quinta High School. Since then, he has worked as an IB administrator, coordinator, and educator in IB World Schools. In 2004, Bob joined the IB Educator Network where he led IB authorization and evaluation visits, and still leads IB workshops for Heads of Schools, IB Coordinators, and teachers alike. In 2017, Bob started the IB for Woodstock School in India, a boarding school in the foothills of the Himalayas.

Bob returned from India in 2020 to work in NYC schools, bringing the IB Diploma and Careers-related Programmes to students in the South Bronx, before joining Léman.

Similar to his students, Bob’s IB journey challenged him to become more of an inquirer, more knowledgeable, and more compassionate for those around him. He is a life-long learner and believes that an international curriculum, like the IB, builds people of character who can make the world a better place.

Bob holds a BA in History from the University of California, Los Angeles, and received his teaching credentials at California State University, Long Beach.

Luz Garcelon

Director of Curriculum
l.garcelon@trinityharvestchristiancenter.com

Luz Garcelon joined Léman in 2021 and previously served as Léman's Director of International Baccalaureate (IB) Programming. Prior to Léman, Ms. Garcelon served as the IB Diploma Coordinator at the United Nations International School (UNIS), a role she began in 2015. At UNIS, Ms. Garcelon supervised the IB program to promote academic success, oversaw the organization of IB exams and evaluations, coordinated teacher professional development, and partnered closely with parents and administration to support student achievement.