Meet our teaching and support staff!

Lety Arroyo – Primary Spanish Lead Guide


Lety holds an AMS (American Montessori Society) Early Childhood Montessori Teaching Credential (2017) from West Side Montessori School - Teacher Education Program, Manhattan. She has an Associate's’s Degree in Elementary Education and worked as an early childhood teacher in her native country of Honduras. Teaching is one of her great loves. She has been working with children in bilingual preschools in Honduras and New York State for 20 years. Lety relocated to the United States in 2007 and began to work with Castle Island's Montessori program in 2012. She loves the experience of teaching at Castle Island and she describes the education here as unique because the child has the freedom to choose his or her work daily. 


Her students, their parents, and her co-workers all describe Lety as an energetic and fun-loving person. She is proud to be a link between the child and the prepared environment in the classroom and her goal is to help children's need to be free, to move, and to experience the atmosphere enjoying their work and play without interruption. She enjoys her role as a great observer of individual interests and needs of each child. As an educator, she is thrilled to be a part of the education of many children, including her own son, at Castle Island; and, to be children's guide within the Montessori philosophy.


Viviana Mora – Primary English Lead Guide


Viviana holds a PAMS (Pan-American Montessori Society) Early Childhood Montessori Teaching Credential (2016) from the PAMS Teacher Training Program (Atlanta, GA) at San José, Costa Rica. She also has a BS in Elementary and Special Needs Education and a MS in Physical Therapy, both from the University of Costa Rica. 


She began working at a Montessori school in 2014 with children ages 2 to 5 years, and realized that this was an excellent method for kids to learn at their own pace and in a practical way. She saw that children acquired knowledge easily and were always motivated for more. The following year she decided to pursue Montessori teacher training. She is a strong supporter of Montessori as a educational method, believing that when children are provided with an environment that allows for freedom and independence as a way for them to learn using their sensitive periods of interest, they reach their potential.

Holli Frazier – Elementary English Lead Guide 

Holli is currently completing an AMS (American Montessori Society) Early Childhood Montessori Teaching Credential (2019) with Montessori Live, an mixed online/on-site MACTE accredited Montessori teacher training institute. A native of Albany, Holli has a BA in Theatre Arts (2009) and a MS in Human Services (2015), both from Liberty University, VA. She completed the NYS Infant and Toddler CDA while working with toddlers and preschoolers at Pineview Preschool, Albany. 


Holli first heard of Montessori education during her Philosophy of Education class in graduate school. She was intrigued by the idea that children could work on their own levels and have a sense of personal autonomy in their educational experiences. Becoming a parent a few years later, Holli turned to Montessori for her daughter's education and sensory needs. 


Luisa Puente – Primary Spanish Assistant Guide

Luisa has an Associates Degree in Office Management and has worked in her country of origin of Ecuador as a teaching assistant to preschool children at the private school, "Academia General Carlos Machado." 

Her interest is to contribute to the integral development of children by becoming a guide that provides an appropriate working environment for the children. By taking care of the specific classroom materials, helping them when they need it, and encouraging their all efforts, she aspires to assist in the development of the children's cognitive skills within an atmosphere of joy, respect, and community. After a year of enriched experience at Castle Island, Luisa can affirm that each child will be able to choose freely through the work they have completed. Luisa believes that this promotes respect and potentates for their abilities, allowing them to develop their own learning and cognitive skills.

















Carlos Menjivar – Elementary Assistant Spanish Guide

                               Primary & Elementary Movement Guide

                               After Care Coordinator


Carlos holds a BA in Early Childhood Education with an emphasis in Special Education at the College of St. Rose (2019). Carlos began working at Castle Island in 2016 working in several positions as an intern. A native of El Salvador, he grew up a bilingual household on Long Island and is a certified English/Spanish translator (2018). Carlos has several years experience working with foster children in a group home setting and enjoys running and playing soccer; he plays and assists with the St. Rose College men's soccer team.

Carlos brings the Spanish curriculum to the elementary community, utilizing Montessori materials to make the meaning of new vocabulary concrete. He facilitates the physical education program at Castle island and is the coach for the school's Just Run team, leading the team of elementary children to the regional fall cross county meet and the spring track meet. The movement program also incorporates the Wild Project which he conducts on site at Washington Park. Finally, Carlos coordinates the After Care program to develop safe and fun activities to wrap-up the children's days at school.

Kim Kauffman – Creative Visual Arts Guide

Kim Kauffman has a BS in Studio Art from Skidmore College, with a focus in painting and drawing. She worked for several years in NYC as a costume designer for artists working in film and sculpture, and later as a weaving instructor and pattern maker for a fiber studio in Brooklyn. After moving to Philadelphia, Kim began concentrating on her own work, doing some freelance illustration, and growing her family. A native of the Capital District, Kim moved back to the Albany area in 2011 with her husband and their three sons.

Kim began sharing her love of art with children several years ago, offering an after school enrichment program at her son’s elementary school in Delmar. This program, called We Are Art Stars!, quickly grew to include other elementary schools and preschools, eventually leading Kim to the Albany Art Room, where she offers several classes, family workshops, and summer camps. A firm believer that every child is an artist, Kim creates a curriculum that honors each child’s ideas and creativity.

Mariah Perdomo - After Care Assistant

Mariah holds a BA in Psychology with a minor in Multicultural Studies from Siena College and is currently pursuing her M.Ed in Clinical Mental Health Counseling at the College of St. Rose. She specializes in mutlicultural counseling and child development as she understands the impact sociopolitical factors can have on identity development. Mariah is originally from the Bronx, and her family origin is Puerto Rican and Honduran. She is bilingual English/Spanish, and has a passion for mentoring and promoting social justice. During her time at Siena, Mariah served as a diversity advocate at the Damietta Cross-Cultural Center where she facilitated training and encouraged dialogues inside and outside of the classroom on social justice issues that including: the impact of microaggressions, acceptance of the LGBTQ+ community, and campus climate for students of color. She values diversity within our community and is focused on creating positive environments for the children she serves.

Sara Mercado Administrative Coordinator

Sara holds a BS in Information Systems Management from York College in Queens, New York, and has over twelve years of experience providing IT solutions to faculty, staff, and students in three local colleges in the Capital Region. Her prior experience in help-desk settings includes providing hands-on technical solutions for Windows and Mac, analyzing training needs, facilitating training seminars, writing documentation and creating/maintaining websites. Sara speaks Spanish fluently, originally from Nicaragua, and has been living in New York since 1982. 

Sara is the staff person who greets parents and visitors in the afternoons; and, besides keeping the books for our school, she work to support institutional development. And, the children are so pleased when she can fill in to substitute in After Care! 

         [PHOTO PENDING]

[NEW STAFF TO BE HIRED] – Facilities Maintenance Coordinator 


Michael Averill –  Bonner Service Leader Intern, Siena College

Pierre Dalce – Bonner Service Leader Intern, Siena College

Samantha Gisleson – Bonner Service Leader Intern, Siena College

Harriet Koblenzer – Bonner Service Leader Intern, Site Leader, Siena College

© 2020 Castle Island Bilingual Montessori

Castle Island Bilingual Montessori is an independent school and does not discriminate in our enrollment policies on the basis of race, color, gender, religion, sexual orientation, nation or ethnic origin.