Yvonne Tryce, the director of the Portola Valley Nature Center, has taught science in both the Los Altos and Portola Valley School Districts. She is a graduate of Stanford University having received her bachelor’s degree in biological sciences. She received her teaching credential from San Jose State University.

Mrs. Tryce is also a licensed Clinical Laboratory Scientist with laboratory work experience at Stanford Hospital and Menlo Medical Clinic.

As Director of the Portola Valley Nature Center since 1992, she has provided hands-on experiences in science and nature for hundreds of local children.