Holden Tutoring and Mentoring Center

Serving Orinda, Lafayette, Moraga, and the greater Bay Area

Orinda High School Tutor

Why Choose Holden:

Holden tutors are full-time classroom teachers with years of teaching, tutoring, and mentoring experience.

Holden teachers help their students positively change their relationship to learning. We mentor, work one-to-one, and engage in small class instruction.

  • Open to high school and community college students
  • $75/hour for all subjects; $400 for 6 sessions or $100/hour for Learning Specialist Support
  • $75 flat rate for proctoring of online course exams (i.e. BYU Independent Study; call or email for details)
  • M-F 4-7 pm

Call (925)254-0199 or email: office@holdenhigh.org and ask about our introductory offer: Try Holden! First session half price.


    • Test prep: SAT, ACT, PSAT
    • College admissions and essay writing
    • Executive functioning and organizational skills and techniques
    • Life skills and future planning
    • English: all levels
    • Math: all levels, including all levels of Calculus
    • Science: Biology, Chemistry
    • History / Social Science: all topics related to world and U.S., including U.S. Government
    • Languages: Spanish
    • On-line learning  / course support

Learning Specialist Support

    • One-to-one tutoring with a credentialed education specialist
    • Helps students with mild to moderate disabilities access and respond to material within their abilities
    • Works with students where they are at, building on students’ strengths and targeting specific skill deficits
    • Helps students figure out the best executive functioning strategies for their learning style to help them plan, organize, self-monitor, and become more independent with their school work

Our Tutors

Kate Knox

Kate graduated from San Francisco State University with a self-designed BA in English with a focus on education. In addition to teaching academic and elective classes and tutoring, Kate supervises the academic teachers and is the CFO of Holden. She is also a certified personal trainer and serves on the educational advisory board of UC theatre concert career pathways. Actively involved in the punk scene since 1979, Kate is a founding member of B.O.B., a collective that organizes international punk rock concerts. Kate has been at Holden in various capacities since 1987.

Abby Tuttle

Abby graduated from Holden High School in 1993 and has a BA in Humanities with an emphasis in Education from New College of California. She has an MA in Special Education from San Francisco State University and a Mild to Moderate Education Specialist Credential. She directs Holden’s Learning Support Program and is a member of the Council for Exceptional Children. Outside of Holden, Abby enjoys nature, yoga, dance, and spending time with her friends and family.

Rikki R. Edelman

Rikki teaches US Government, Biology, and electives. Rikki is also one of Holden's Transition Counselors, helping students envision and prepare for life after high school through internships and jobs. She has a BA in English Language Arts and Anthropology, a Teaching Credential in Secondary English, and an MA in Education all from University of California at Berkeley. She also holds a certificate in Horticulture from Merritt College and has done continuing education in Permaculture and Green Building. Her outside interests include parenting, writing prose and poetry, folklore, gardening, environmental sustainability, health food, and social justice. She is a member of the Mycological Society of San Francisco and the Bay Area Writing Project. She is a parent and step-parent of children of different ages and abilities.

Katherine Montgomery

Katherine teaches math, chemistry, history, and a number of rotating classes for Holden. She also acts as Holden’s college transition counselor and runs the Holden chapter of Girls Who Code. She holds a bachelor’s from University of Michigan and a master’s from the University of Colorado at Boulder, and has been teaching students at the high school and undergraduate level for over 10 years. She has extensive experience teaching and developing standardized tests. In addition to teaching, she has sung professionally and is a published writer and reviewer. She lives in the Canyonlands with her husband Peter.

Ally Sawyer

Ally teaches English Composition, World Studies, Journalism / Yearbook, and a class titled Identity and Diversity in Comics. She holds a BA in English Literature from the University of Connecticut, with a concentration in Cross Cultural and Ethnic Studies. Her outside interests include comics, video games, reading, and her dog. She is a member of the AmeriCorps Alumni Association and the City Year Alumni Association.

Kiersten Yount

Kiersten teaches English Fundamentals, U.S. History, and Geometry at Holden. She holds a B.A. from U.C. Santa Barbara in Psychology and an M.A. from San Francisco State University in Creative Writing. Kiersten has over 10 years experience teaching all ages and subjects, in both public and private institutions in the Bay Area. In her free time, Kiersten enjoys spending time with her family and friends, reading and watching or playing baseball.

Libby Vega

Libby teaches Metaphor and Meaning, Pre-Calculus with Trigonometry, and Spanish at Holden. She earned a BA in Liberal Arts from St. John’s College in 2002, followed by an MFA in Staging Shakespeare from Exeter University. Libby began tutoring at seventeen, and has been working with students on academic achievement full time since 2010. She is also the co-founder and producing artistic director of Those Women Productions, an independent feminist theater company based in Berkeley. In her free time, Libby enjoys knitting, reading, cycling, and spending time with friends and family.