Teachers & Staff

Principal Rosette Costello

Ms. Costello says that her goal is to create “a school that resonates with the beauty, the talents and the diversity of our students, parents/caregivers and staff.”  Ms. Rosette Costello, principal since 1996, is dedicated to building a strong academic program that also addresses the needs of the whole child.  She is committed to collaborating with parents, students and staff, and works hard to obtain outside resources for staff development, art and music instruction, and mental health services.  She holds a master’s degree in language and literacy from UC Berkeley, as well as degrees in developmental education and art.


2014/2015 Staff


Rosette Costello, phone (510) 597-4967

Main Office

Jan Seagren, School Secretary, phone (510) 654-7365

Classroom Teachers


Ann Arbogast (Room 102)
Cassie Powell (Room 103)

First Grade

Pam Lucker (Room 104)
Stephen Davis (Room 101)

Second Grade

Diane Colquon (Room 106)
Ann Larsen (Room 105)

Third Grade

Elisabeth Bandy (Room 108)
Marie Stewart (Room 109)

Fourth Grade

Susan Killebrew  (Portable B)
Ana Thomas (Portable C)

Fifth Grade

SarahJayn Kemp (Portable E)
Jill Rogers (Portable D)

Support Staff

Paul Andrews, Custodian
Darryl Cobb, Noon Supervisor/Mentor
June Edwards, Noon Supervisor/Instructional Assistant/Mentor
Diana (Elaine) Everman, On-Site Substitute
Daniel Harris, Resource Specialist
Jonathan Hasak, Resource Specialist
Coach Jonathon/Physical Education Leader
Sonia Kreit-Spindt, Librarian/GATE Teacher/Title I Assistant
Bonnie Lockhart, Music Consultant
Trena Noval, Artist-in-Residence (digital)
Ellen Oppenheimer, Artist-in-Residence (visual)
Sonia Perez, Mentor/Spanish Teacher
Danesse Price, Noon Supervisor/Mentor
David Tidball, Instrumental Music Teacher
Sherice Tyler, P.E.A.C.E. Program Site Coordinator
Asha Washington, Noon Supervisor/Mentor
Q B Williams, Music Consultant
Charlezetta Wilson, Custodian/Mentor