Meet Our Team

Ken Situ

Center Director

Ken is an experienced, results-oriented manager who brings a passion for education to his role of Center Director. His leadership style is shaped by his strong commitment to customer service and student growth. Ken manages our complex schedule, ensuring the best possible student-tutor matches, and oversees Center operations with a sharp focus on quality improvement. Ken earned a BA in Philosophy and Religion from SFSU. When not at Sylvan, Ken enjoys reading, meditating, drinking tea, and gardening. Ken is conversational in both Cantonese and Mandarin.

Lori Livingston

Executive Director

Lori brings a passion for education and a background in executive management to Sylvan Learning of SF.  She has held management positions at Apple Computer and Fidelity Investments, and previously served two terms on her local public school board. Lori has raised four sons, each one benefiting from the individualized support they received to reach their academic potential. She focuses on ensuring a center culture of excellence that allows Sylvan students to have fun and build confidence while reaching their academic goals. She also finds great satisfaction in supporting the professional development of Sylvan team members. Lori is a Phi Beta Kappa graduate of Stanford University and a Harvard Business School alumna. She is an avid skier, golfer, hiker, biker and reader.

Donald Livingston

Director/Business Manager

Donald manages our center business functions and helps oversee center staff.  He gets to know Sylvan students by conducting many of our Sylvan Insight Assessments.  He also conferences with parents to make personalized tutoring program recommendations that help students reach their academic goals. Donald’s patient and empathetic demeanor, analytical prowess and service orientation contribute to the successful operations of Sylvan Learning of SF. He is a Stanford alum, an avid SF Bay Area sports fan, and an expert chess player. A Bay Area native, Donald resides in San Francisco.

Chloe O'Keefe

Education Program Manager

Chloe joined Sylvan as a literacy tutor and is now a member of our full-time team where she serves as Education Program Manager. In this role, she  supports students, tutors and families and handles educational administration duties.  Chloe is Lowell High School alum and a Phi Beta Kappa, Cum Laude graduate of the University of Washington. At UW, she worked as a Writing Center Tutor, guiding students to become more confident, capable writers. She has also worked with SF middle school students as an AmeriCorps member, coordinating mentoring programs to build academic and social-emotional skills. Chloe brings a strong background in mental wellness as well as education to her work at Sylvan. In her free time, she enjoys rock climbing, video games, and hosting tea parties.

Alex Roznovsky

Education Program Manager

Alex joined Sylvan as a tutor and is now a member of our full-time team where she serves as Education Program Manager,  supporting students, tutors and families and handling educational administration duties. Alex has a strong academic background and experience working with students in enrichment settings. A Phi Beta Kappa, cum laude graduate of UCLA, he earned his B.A. in Linguistics with a minor in Geography. Alex served as a Senior Resident Assistant at Johns Hopkins University’s Center for Talented Youth, where he supported and mentored advanced middle and high school students in a residential learning environment. Known for his patience, communication skills, and enthusiasm for learning, Alex brings curiosity and creativity to his work at Sylvan. A San Francisco native and alum of Galileo High School, Alex enjoys trivia, crossword puzzles, and taking long walks around the city with friends.

Pasutorn Chinwanno

Teaching Assistant

Pasutorn is our center’s Teaching Assistant, working to support tutors and students while keeping our instructional floor running smoothly.  With a B.A. in Communication Studies from SFSU and a strong foundation in critical thinking and interpersonal communication, Pasutorn brings both academic and practical strengths to his role. He has direct experience tutoring students, helping them with homework, study strategies, and building academic confidence. He also contributes some additional language skills to our center team as he speaks both fluent Thai and conversational Japanese!

Jacob Krimston

Office Assistant

Jacob brings a strong academic foundation as well as excellent administrative, communication, and customer service skills to his work as our center’s Office Assistant. When you enter Sylvan of San Francisco, that’s Jacob saying hello at the front desk! Jacob earned a B.S. in Cognitive Science from UC Santa Cruz, where he also served as a research assistant in the Collective Memory Lab. With extensive experience as a behavior interventionist and program leader, he is highly skilled at supporting diverse students, managing materials, and handling parent inquiries. Jacob is committed to providing an organized, positive, and excellent customer service experience for all Sylvan students and families.

Dana Sargenti

Tutor and Instructional Manager

Dana is an expert reading, writing, math and HSPT tutor and also supports our Saturday team as Instructional Manager. Dana is a teacher and Assistant Principal with the Bay Area Archdiocese Elementary Schools.  She graduated with a Physical Education Degree and completed credential coursework at SFSU.  When not teaching at Sylvan or in her classroom, Dana enjoys reading, playing tennis, and yoga.

Chloe Caneday

Tutor

Chloe’s educational and professional background is a great fit for our reading and writing students. She graduated Summa Cum Laude from San Francisco State University with a BA in English Literature and a minor in Classics, and is currently pursuing her Master’s in English Literature at SFSU. Her prior experience as a gymnastics coach makes her a pro at engaging children in dynamic learning environments like Sylvan. Friendly, personable, and approachable, Chloe is committed to fostering a positive and enriching educational experience for her students. In her spare time, she loves to read, write, and explore the city.

Cheyenne Garretson

Tutor

Cheyenne is an experienced reading, math, and writing tutor with a strong academic foundation in the sciences and education, and a proven ability to connect with students of all backgrounds. She studied Biochemistry and Cell Biology at UC San Diego and earned a BA in Pharmaceutical Sciences and a Doctor of Pharmacy (PharmD) from the University of Hawaiʻi. Cheyenne is currently pursuing an MS in Clinical and Epidemiological Research at UC San Francisco. Formerly Head Instructor at The Tutoring Center in Honolulu, she is skilled at motivating students through positive encouragement and reinforcement, helping them build confidence and achieve academic success. We are excited to welcome Cheyenne to San Francisco and thrilled to have her on our tutoring team!

Lauryn Snyder

Tutor

Lauryn is one of our superstar math, science, HSPT, SAT and ACT tutors. She holds a Bachelor’s in Physics from Moravian College and is currently earning her Masters in Physics at SFSU. Lauryn has worked as a teaching assistant both at the college and graduate student level. She has also worked with younger students, doing science demos for elementary students through her college Physics Club. In addition to being an expert in math and science, Lauryn loves to read and knows sign language, too!

Daniella Alaverlo

Tutor

Daniella is an experienced language arts tutor who helps Sylvan students of all ages build skills in writing and reading. Her tutoring sessions foster confidence, creativity, and critical thinking in a supportive and engaging environment. A dual-degree graduate from Georgetown University in Linguistics and English, Daniella completed senior honors theses for both degrees. She has extensive tutoring experience, including supporting college students at Georgetown University’s Writing Center and working with elementary and middle school students at 826 Valencia in San Francisco. In her spare time, Daniella enjoys reading and going on walks to explore the city.

Rohan Srinivasan

Tutor

Rohan is a friendly, engaging, and versatile tutor who supports K–12 students in reading, writing and math. He holds a B.A. from the University of Southern California, graduating with a 4.0 GPA and University Trustee Honors. A published author of a literary fiction novel, Rohan brings deep expertise in writing, storytelling, and analytical thinking. He also along with hands-on experience teaching writing and math in both one-on-one and group settings. Known for his strong relationship-building skills and encouraging approach, he tailors instruction to each student’s needs while helping learners build confidence and curiosity. As a dedicated fiction writer, Rohan spends much of his spare time writing in SF neighborhood cafés.

Sarah Evenson

Tutor

With her strong academic background and approachable teaching style, Sarah makes math engaging and accessible for Sylvan students. Sarah earned her B.S. in Physics with a minor in Music from UCSB and later completed a Data Science Certificate at UC Berkeley Extension. She discovered her passion for teaching at UCSB, where she worked as a Learning Assistant guiding group discussions and supporting students in problem solving. She has also mentored and trained others in her professional roles, bringing patience, encouragement, and clear communication to every interaction.  A SF native, Sarah also loves the mountains and especially enjoys camping, hiking and backpacking.

Grace Casserly

Tutor

A lifelong avid reader, Grace brings both passion and skill to helping students strengthen their literacy. Grace earned a B.A. in English from Santa Clara after attending St. Ignatius College Prep in SF.  She has hands-on teaching experience leading students in classroom activities through the SproutUp! youth program. Her background in creative writing, peer editing, and academic analysis equips her to support students of all ages. Grace even enjoys standardized tests and is skilled at helping students approach them with confidence.. Grace’s favorite leisure activities include reading manga, playing video games, doing yoga and baking with friends.

Ian Doyle

Tutor

Ian enjoys helping students strengthen their reading, writing, and critical thinking skills through curiosity-driven learning. A UCSC graduate with a B.A. in History, Ian earned multiple awards for excellence in research and writing, including the UCSC Chancellor’s Undergraduate Award and the UCSC Deans’ Undergraduate Award. He has experience creating high school curriculum materials, mentoring student interns, and leading educational initiatives through the Watsonville Is in the Heart community archive project. Ian also developed his teaching skills as an Explainer at the Exploratorium in San Francisco, where he facilitated hands-on learning for visitors of all ages. In his spare time, Ian loves to play music and read.

Boone Mayer

Tutor

Boone brings a strong language and literacy background to his work as reading, writing and history tutor at Sylvan. He holds a B.A. in Intensive History from UC Santa Cruz, graduating cum laude with consistent Dean’s Honors recognition. His tutoring experience includes providing one-on-one and group instruction at the college level, where he developed interactive lesson plans to boost engagement and comprehension. Boone’s additional experience teaching chess to elementary students and working in high-pressure customer service roles demonstrates his ability to manage classrooms, communicate effectively, and adapt to diverse learners—key skills for supporting our Sylvan language arts students!

Scott He

Tutor

Scott draws on his impressive academic background to provide expert math and science tutoring for Sylvan students. He graduated from Lowell High School and went on to earn a dual B.S. in Electrical Engineering and Mathematics and an M.S. in Electrical Engineering, all from UCSD. His studies have included chemistry, physics and high level mathematics. As a Teaching Assistant at UCSD, he supported students through office hours, grading, and project help. Scott’s strong technical background and clear communication skills make him well-suited to support and motivate students seeking math and science tutoring.

Keyur Ranka

Tutor

Keyur is a thoughtful and engaging tutor with a strong foundation in mathematics and economics. A dual-degree graduate from UC Davis, he earned a B.S. in Applied Mathematics and a B.A. in Economics. Keyur believes that mathematics isn’t always intuitive, so he approaches each topic in a way that makes concepts clear and accessible. He enjoys connecting lessons to real-world examples and sharing the fun, memorable parts of math to help students stay curious and confident in their learning. In his spare time, Keyur enjoys playing the harmonica, visiting museums, and spending time with friends.

Mario Martinez

Tutor

Mario is a knowledgeable and patient math and physics tutor who supports students across all levels, from foundational math through Calculus. He holds a B.S. in Mechanical Engineering from San Francisco State University, bringing strong analytical skills and real-world problem-solving experience to his teaching. While working at SFSU’s Tutoring and Academic Support Center, he supported students with coursework, studying, and homework in both one-on-one and group settings. He is especially skilled at breaking down complex math and physics concepts into clear, manageable steps, helping students build confidence, accuracy, and a deep understanding of challenging material. Mario enjoys video games, rock climbing and walking the city.