Daniel Lemke teaches ENGLISH II, WORLD STUDIES, ADVANCED ALGEBRA, BASKETBALL and a music class titled MINOR FRET here at Holden. He is studying Mathematics and Computer Science at San Francisco State University, and music (jazz and classical guitar) at the San Francisco Community Music Center. He has been teaching at Holden since 2006.

Jason Leach teaches LIFE MATH, SCIENCE: NUTRITION, ENGLISH IV and CREATIVE WRITING CIRCLE. He has a B.A. in Women & Gender Studies from San Francisco State University. He is passionate about bicycles and enjoys vegan cooking and making experimental music.

Rikki R. Edelman teaches ENGLISH III, BASIC ALGEBRA, US STUDIES, PERMACULTURE, and AMERICAN SIGN LANGUAGE and is involved in Holden’s community garden project. She has a B.A. in English Language Arts and Anthropology, a Teaching Credential in Secondary English, and an M.A. in Education all from UC 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..