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Meet the Administration

Principal Cheryl Foster

Ms. Foster has been an educator with SFUSD for 20 years at all levels, including high school English teacher, reading specialist and instructional reform facilitator (teacher coach) and administrator. She studied both English and psychology at the University of Arkansas before moving to San Francisco. She received her Masters of Arts in Education from the Principal Leadership Institute at UC Berkeley. This is her 9th year as Wallenberg's principal.

She believes in educating the whole child, high expectations for both academics and behavior and providing a well-rounded educational experience for high school students that includes rigorous core classes, visual and performing arts, and career technical education, such as biotechnology and computer science.  

She loves the honesty, intelligence and compassion of Wallenberg students and believes we have the best students in the City!  

In her free time, Ms. Foster enjoys reading, gardening, bird watching, hiking and traveling.


Assistant Principal Staci Kavanagh

Ms. Kavanagh is a San Francisco native.  She has been a teacher for over 16 years.  She was the Art teacher at Raoul Wallenberg High School for the past 6 years, where she also held the positions of Teacher Leader and Department Chair for the Visual And Performing Arts Department (VAPA), and became National Board Certified.  She is an advocate for social change, striving to close the achievement gap and ensure success for all students.  She spearheaded the Advanced Placement Diversity Action Plan, working with the counselors to recruit and support underrepresented students into Advanced Placement classes and helped Wallenberg become an AVID school, implementing AVID strategies to better support struggling students with organizational and note-taking skills

Ms. Kavanagh enjoys spending summers camping and hiking with her family.  She has two boys, ages 5 and 7. They have two furry family members: cats Sebastian and Harry “Sneaky Paws”.


Assistant Principal Chris Rosenberg

Mr. Rosenberg is excited to be part of the team at Wallenberg!   He comes our school with many years' experience in various teaching and administrative roles in SFUSD.  Mr. Rosenberg was also a middle school teacher in West Oakland for four years and previously, worked as a high school history teacher in the Bronx.  Outside of school, Mr. Rosenberg enjoys sports and taking road trips with his family.