Individual Teachers looking for mentorship and pedagogical support.
School Administrators seeking professional development solutions for their staff.
Department Heads wanting to align their team’s curriculum with NGSS standards.
Meet Our Coaches
Explore the diverse expertise of our team members who will be leading the session.
Juliette Guarino Berg
Elementary General Science
Sharona Kahn
Mathematics
Paul Feffer
Physics, Computer Science
Tracy LaGrassa
High School Biology, Science Research
Eric Walters
High School Physical Science
Zhanna Glazenburg
General Science, Physics, Engineering, Mathematics…
Leton Hall
Middle School Science, Biology, Physics
Evonnia Smith
Middle School Science, High School Biology
Manjula Nair
High School Mathematics
Daniel Leo Buckley
Design Thinking, Innovation, Entrepreneurship
Carolina Castro-Skehan
High School Earth Science
Keeshia Lambert
Middle School Science
Kate Macaulay
Elementary General Science
Glen Stuart
Environmental Science, Climate Change, Evolution…
Tchnavia Merrick
Upper Elementary and Middle School General Science…
Michelle Velho
Elementary General Science, Computational Thinking…
Carlos Hualpa
General Science and Mathematics
Kimesha Reid-Grant
Middle School Science
Jason Sullivan
Elementary General Science, Secondary Physical Science
Kara Luce
High School Chemistry
Juliette Guarino Berg
Grades K-5th
Expertise: Elementary General Science
Juliette is currently pursuing her Ph.D. in Science Education at Teachers College, Columbia University. She has served as a STEM educator, curriculum developer, coach, and professional development leader in New York City and the surrounding metropolitan area for almost two decades. Juliette received her B.A. in Biological Sciences and Comparative Literature from Binghamton University in 2008 and her M.S. in Childhood Education from Hunter College in 2012. She holds New York State Professional Certificates in both Childhood Education (Grades 1-6) and Adolescent Biology Education (Grades 7-12). Juliette is an active member of the nonprofit organization STEMteachersNYC and is currently serving as the chair of its Board of Directors. Her research interests include teacher professional development in the STEM subjects as well as the implementation of computational thinking curriculum in the elementary science classroom.
Mathematics Department Chair at Berkeley Carroll School. Over 15 years designing equitable, hands-on learning experiences; focused on deep mathematical understanding. Involved with STEMteachersNYC since 2017, leading workshops on standards-based feedback and assessment. Siegel STEM Fellow recipient; member of Academy for Teachers; finalist for Rosenthal Prize. Holds BA in Mathematics & Dance (Barnard) and MA in Mathematics Teaching (Marygrove).
Chair of Science Department at Storm King School since 2013, teaching physics and computer science. Leads robotics team, manages observatory, and coaches tennis. Led Modeling-based physics and programming workshops with STEMteachersNYC; AP reader for physics and computer science.
Biology and science research teacher since 2014. Focuses on authentic student research, student agency, and equitable classroom communities. Formerly worked in patent law and cell biology.
Eric Walters
Grades 9th-12th
Expertise: High School Physical Science
Eric currently serves as the Director of Creative Technology at Marymount School of New York and Coordinator of the RSHM Global Campus. As an Apple Distinguished Educator and a Google Certified Educator, Eric believes that transformative teaching and learning occur when students (and teachers) construct their own knowledge, collaborate with peers, and represent that knowledge and understanding in ways that are meaningful to the learner, all of which requires receiving authentic, relevant, robust, and holistic feedback.
Eric is the faculty moderator for the Tech + Social Media Club, which plans the annual STEMxYouth Summit, coordinates research in girls and teens in social media, and provides resources and webinars for faculty, administrators, parents, and students on teen social media use from the user perspective.
He also has a B.S. in Meteorology from UMassLowell; an MS in Atmospheric Science from SUNY-Albany, a professional certificate in online education from UCSD, and a certificate in television writing from UCLA.
Expertise: General Science, Physics, Engineering, Mathematics, Integrated/Interdisciplinary Course Design
Leton Hall
Grades 6th-8th
Expertise: Middle School Science, Biology, Physics
Leton is a NYS Master Teacher and also a Math for America Master Teacher. In his classroom, he engages in teaching practices that reflect culturally responsive pedagogy, using relevant labs that stretch students critical thinking in science, and designs the curriculum each year directly for the students he teaches that year. He came to teaching through the NYC Teaching Fellows and currently still teaches in the Bronx. He currently teaches Biology at Pelham Gardens Middle School and serves as an adjunct professor at Lehman College, where he supports early-career teachers in developing NGSS-aligned curriculum and effective lab practices within the physics classroom. He is an avid pursuer of educational opportunities such as speaking at events, facilitating professional developments, mentoring teachers, advocating for policy changes that affect teacher diversity in STEM and how to engage multilingual learners and students with disabilities better.
Now in her 23rd year as an elementary science specialist at Hunter College Elementary School in NYC, she is continually working to develop a science program that nurtures students’ natural curiosity and sense of wonder, while building specific knowledge and skills they can apply to real-world phenomena. Grounded in the principles of the Next Generation Science Standards (NGSS), her teaching emphasizes hands-on investigation, inquiry, and creative and critical thinking. The Engineering Design Process is an essential part of her program. Students love design challenges that invite them to problem-solve, test ideas, and iterate like real engineers.
In addition to her work at Hunter, she has taught computational thinking for teachers as an adjunct at Brooklyn College and collaborated with educators from Cornell Tech and the American Museum of Natural History. Most recently, she has been working with teachers, locally and abroad, to strengthen inquiry-based learning and computational thinking in STEM.
For the last eight years, she has been a leader in the STEMteachersNYC Elementary Initiative, leading workshops focused on elementary STEM teaching, building community, and computational thinking. She has also served as a Board Member at STEMteachersNYC for the past three years, contributing to our mission to empower teachers and improve STEM education through teacher-led professional development.
Expertise: Environmental Science, Climate Change, Evolution, System Thinking, Panarchy, Biology
Tchnavia Merrick
Grades 4th-12th
Expertise: Upper Elementary and Middle School General Science, High School Chemistry, High School Earth and Space Science, Environmental Science, Physical Science
Michelle Velho
Grades K-6th
Expertise: Elementary General Science, Computational Thinking, AI Literacy, Micro:bit, Data Literacy, Inquiry-Based Science
Carlos Hualpa
Grades K-2nd
Expertise: General Science and Mathematics
Kimesha Reid-Grant
Grades 6th-8th
Expertise: Middle School Science
Jason Sullivan
Grades K-12th
Expertise: Elementary General Science, Secondary Physical Science
Kara Luce
Grades 9th-12th
Expertise: High School Chemistry
Ready to Transform Your STEM Teaching?
Join us on Zoom to ask questions and meet the team.