Faculty & Staff Directory

School
Department
Sara Marcopulos
Gateway Middle School
Math Interventionist
Biography

Sara was born and raised in San Francisco and graduated from Gateway High School in 2011. After graduating from Gateway, she completed her undergraduate work at the University of San Francisco and obtained her bachelors of science in physics with a minor in astronomy. She is hoping to attend a master's program and looks forward to teaching high school physics in the future. During her free time she enjoys reading and trying new foods throughout the San Francisco area.

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Clara Martinez
Gateway High School
Spanish Teacher
Biography

Clara is a San Francisco native who has been working in education for the past 8 years. Her teaching is informed by her love of theater and movement and her awareness of the relationship between identity, trauma and learning. Clara dances Cuban Salsa, Haitian and West African styles. She also loves to travel the world, learn languages and cultures, cook, meditate and do Yoga. 

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Jenna Marx
Gateway High School
College Counselor
Biography

Jenna has a Bachelor's in Community Studies from UCSC and a Master's in Counseling Psychology from USF. She is a lifelong Bay Area resident who grew up in Belmont in the peninsula and has been in San Francisco since 2010. She has worked with youth in various roles and environments including as a writing coach and mentor, a music instructor, a substitute teacher, an after school program teacher, and in community settings while organizing youth-focused music and arts events. For fun she plays guitar and sings in punk and indie bands, and in the summers she works for the organization Bay Area Girls Rock Camp. She is excited to join the Gateway team as a college and career instructor and counselor!

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Marlies McCallum
Gateway High School
Director of the Learning Center
Biography

Marlies McCallum is a huge fan of Gateway! She began her Gateway career in 2006 as a Learning Specialist, took on the role of Literacy Specialist once she completed her Wilson Reading Certification Training in 2008, and became the Director of Gateway High’s Learning Center in 2011. Marlies graduated from Michigan State University with a bachelor's degree in psychology and received her Special Education Credential at the University of San Francisco in 2002. Before entering the world of education, Marlies enjoyed managing midwestern swimming pools, hockey rinks, and Girl Scout camps.

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Kevin McCoy
Gateway Public Schools
Director of Technology
Biography

Kevin joined Gateway as the Director of Technology in 2002. His college studies varied from commercial flight school to earth sciences and anthropology. After graduating, Kevin moved to San Francisco and was employed by Ziff Davis Media as a Project Leader for the editorial tech labs. At PC Computing Magazine, Kevin was immersed in evaluating the usability and performance of products from computers and cell phones to software and websites. He later worked as a technology teacher for Aim High's summer program, and was then employed by Katherine Delmar Burke School as a multimedia teacher and Support Specialist. Kevin enjoys motorcycles, playing guitar, fixing stuff, and the fine company of his parrot. His first computer was a Commodore 128. 

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Joyce McMinn
Gateway High School
Director of Community Service and Involvement
Biography

Joyce Groom McMinn a Gateway "Founding Mother," teaches the future leaders class and is the Community Service and Outreach Coordinator at Gateway. She graduated from Indiana University with a bachelor's degree and a master?s of science in Education. She grew up in Indianapolis, Indiana and moved to San Francisco after college. For many years she taught and tutored students from kindergarten through high school ages and loves to help students be successful. She is mother to three and grandmother to six. Joyce and her husband love animals and live with a variety of them.

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Madhulikha Muppidi
Gateway Middle School
Math and Science Teacher
Biography

Ms. Muppidi is excited to join Gateway Middle School as the 8th grade math/science teacher. Prior to Gateway, Ms. Muppidi taught 8th graders in Boston, MA and Sunnyvale, CA. Ms. Muppidi studied Business and International Relations at the University of Southern California and completed her teacher training through the Match Teacher Residency. Outside of school, Ms. Muppidi enjoys watching USC football, traveling, and reading. 

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Sharon Olken
Gateway Public Schools
Executive Director
Biography

Sharon is the Executive Director of Gateway Public Schools. In 2000, Sharon joined Gateway’s faculty as a Humanities Teacher. Since then, Sharon has been a Lead Teacher, Dean of Faculty, and served as the Principal of Gateway High School for seven years. During her tenure as Principal, Gateway was recognized as a California Distinguished School and as a top-performing charter high school by the US Department of Education. In 2011, Sharon helped launch Gateway’s second school, Gateway Middle School. Sharon is inspired by the potential of young people and by Gateway’s amazing teachers and staff who help students get on the road to college. Sharon earned her B.A. from Harvard University, where she was captain of the varsity soccer team, and earned her M.A. in Education from Stanford University. Sharon taught a course in the Stanford Teacher Education Program called “Educating for Equity and Democracy,” and worked for Senator Feinstein for two years before beginning her career in education. Sharon is proud of her Bay Area roots, her San Francisco Giants, and her very well behaved dog, Cody Ross.

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