Manzanita Charter Middle School

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Staff and Board

Dedicated Professionals

Office Staff:

  • James Trombley, Executive Director, has a Bachelor of Science in Industrial Education from Northern Michigan University, Masters in Educational Leadership from Eastern Michigan University and an MBA from University of Phoenix. Jim served as the Vice Principal for West Contra Costa Adult Education from January 1999 through June 2010 where he was responsible for ESL, Parent Education, Community fee and Career & Technical Education leading a staff of 70+ teachers at eight campuses. His background includes 7 years teaching high school industrial arts and 2 years for the county jail in Michigan, 20 years part time for community colleges, universities and corporations in the Bay area. Jim brings 20 years of business management experience (manufacturing, engineering, finance and contracts) and likes just about everything: sports, musicals, movies, and especially school.

  • Mandy Mauerman, Data Systems Assistant, studied Early Childhood Education at Diabolo Valley College and worked with elementary age children as a teacher for over 10 years. As the Administrative Assistant at Challenge Day, she managed the office and coordinated adult workshops both locally and abroad. Mandy has also worked as a Personal Assistant for professional coaches and families in times of transition.

  • Adriana Ramos, Bilingual Secretary, has been a parent volunteer ever since her children started attending school and also served as a teacher's aide at Wilson Elementary. She is a mother of three children, including Ernesto and Jovanny who are recent Manzanita graduates. Adriana brings knowledge in Microsoft Office and other computer skills to her work in the Manzanita front office. In her spare time she loves to bake desserts.

  • Colleen Thomas, School Systems Administrator, has worked with educational institutions for over 20 years including Redwood Day School, Lakeshore Children's Center, and Children's House Montessori. Her focus is to create connection and deepen community. Colleen's background also includes domestic violence advocacy, art-house box office theatre management, and membership coordination for SAG-AFTRA. Colleen earned her BA in Chinese Language from Grinnell College and her Masters in Religious Studies from Naropa University.

Academic Staff:

  • Carl Alexander, IT Consultant/Introduction to Computers Teacher, is Microsoft and Cisco certified with over 35 years of expertise in the Information and Communications Technology (ICT) sector. His extensive experience includes service in the private sector through employment stints with Sprint, Kaiser Permanente, Visa International, and the Federal Reserve Bank. In the public realm, he has provided ICT support to county government and to educational institutions at the district level and worked for two years with the San Francisco Sheriff's Department and San Francisco Unified School District as a Digital Literacy instructor.

  • John Bibb, PE Teacher, has a Bachelor of Science Degree in Health and Physical Education from Stillman College in Tuscaloosa, Alabama, where he played collegiate football. He has 10 years of PE instruction and coaching experience at multiple grade levels in the Los Angeles area. To go along with his love for the teaching profession, he has acquired skills as a head varsity high school football coach as well as boys and girls basketball coach at the middle school level. John is a sports enthusiast, and spends his leisure time exposing and engaging his two sons, ages 6 and 2, in physical and sports activities.

  • Bob Capune, 6th Grade English and History Teacher, has a BA in History from the University of California, Berkeley. Bob worked for two decades at the Lawrence Hall of Science, a hands-on children's museum. Although he likes Science, his true passion is the Humanities. He thoroughly enjoys teaching English and History instead of quadratic equations. An avid world traveler, Mr. C has visited every continent (except Antarctica). He brings photos, stories and artifacts from these trips to his classroom to share and enhance curriculum.

  • Natalie Chase, 7th and 8th Grade Science Teacher, has a Bachelor of Science in Cellular and Molecular Biology from San Diego State University. It was there that she developed her desire to teach while volunteering in third grade classrooms. After leaving San Diego, she worked in Pasadena with 3rd-5th grade students and volunteered at the local high school. She continued her education at Loyola Marymount University to obtain her teaching credential. Prior to working at Manzanita, Natalie worked with Summit Public Schools. When she is not teaching, Natalie enjoys spending time outdoors, camping, photography and traveling.

  • Kimberly Fields, Resource Specialist, has been in the Special Education field for the last 15 years. She graduated from University of The Pacific with her BA and went on to earn a MA in Special Education along with a multiple subject and mild moderate teaching credential. She has 3 beautiful children in college and considers herself a "connection specialist". Connecting inter-personally with students and parents creates self-confidence and a desire to learn. She values good communication, good interpersonal interactions and loves changing lives. She has a passion for teaching and loves to see her students meeting their potential. When she is not teaching, Kimberly enjoys singing and signing in her church group called "Signing Hands". She also enjoys Zumba, and spending time with her family. She really looks forward to getting to know you!

  • Heikki Koskinen, Music Teacher, was born in Finland and received his main education there, including private music studies, as well as Master of Science in Civil Engineering from Aalto University. After receiving scholarships to study music at the Berklee College of Music in Boston, Heikki moved to San Francisco in 1977. Heikki has over 35 years experience in teaching music in the Bay Area, as well as performing and composing from albums and multi-media events to scoring for film. Besides classroom and private teaching, he composes music for all media and leads his own jazz groups. Heikki's latest CDs, "Midnight Sun", "Full Moon" and "Northern Winds and Voices" feature Latin/Jazz arrangements of original and Finnish songs. His two children have graduated from college. Heikki is looking forward to bringing exciting music making to Manzanita.

  • Wendy Liu, Mandarin Teacher, was born and raised in China. She she graduated from Xiang Tan University where she obtained a Bachelors degree of Arts in Linguistics and Literature. She also obtained a certificate from UC Berkeley Extension in Teaching Chinese as a foreign language. Wendy began teaching Mandarin in 2009, she not only had a good time with her students who were of different ages, but also, she worked hard in preparing and studying various teaching materials. After completing The California Subject Examinations for Teachers - Mandarin Subtest I, II, III - in 2013, she felt more confident about her teaching background and her pre-professional knowledge of Chinese.

  • Tanya Mailangi, 7th & 8th Grade English Teacher, has served students in the Ravenswood District as an ELA tutor for over five years. Growing up an ESL student taught Tanya to value and perceive reading and writing effectively as a powerful means that opens doors, shatters glass ceilings, and empowers one to overcome societal stereotypes, surpass expectations and become the best that one can be. Tanya holds a BA in Divinity (Tonga), MA in Theological Studies, and a MA in Teaching from Liberty University in Lynchburg, VA. Her hobbies include spending time with her family, traveling, listening to music, and being engrossed in a good book. She is excited about this new academic year and looks forward to its unique challenges and experiences, and most of all to learning and growing alongside her Manzanita family-colleagues, parents and students.

  • Annie Malekzadeh, 6th Grade Math & Science Teacher, obtained a BFA from California College of the Arts in Oakland, CA in 2010. While working as an artist, she discovered a love of teaching through guest teaching and volunteer positions. Originally from Ventura, California, Mrs. Malekzadeh moved to Eastern Tennessee to attend East Tennessee State University, a university which began over 100 years ago as a small teacher-preparatory college. After obtaining a graduate degree and a multi-subject teaching license, she worked for Bristol Virginia Public schools teaching 6-8th grade remedial math. Recently returned to the Bay Area, she is ecstatic to be part of the Manzanita staff teaching 6th grade Math and Science.

  • Baby Raff, Speech and Language Specialist, has worked in the field of education for over 30 years. She holds a BA in Liberal Arts from Grambling University in Louisiana, a BA degree in English from George Mason University in Fairfax, Va., MA degree in Speech, Hearing and Language Pathology from the University of San Francisco, a Pupil Services Counseling degree from LaVerne University, LaVerne California, and an Administrative Services Credential from California State University at Hayward. Baby started her career in the WCCUSD as a Speech and Language teacher at Ellerhorst Elementary and from there to Nystrom Elementary as a Special Education NSH teacher and counselor. She later moved to the Special Education Program Administrator's position and subsequently principal of Transition Learning Center. She is currently retired, but continues her zest for education as the Speech and Language Specialist at Manzanita.

  • Haley Ralph, 7th & 8th History Teacher, has a passion for all things history! She calls herself a professional student because of her never ending desire for learning. She hopes to bring this passion into the classroom and pose history as a wonderful adventure for all her students. She enjoys visiting historical sites in her spare time and hopes to broaden her travels to the international level. She is originally from a small town outside of South Lake Tahoe. Haley moved here when she was 18 to further her education and immerse herself in the melting pot we call the San Francisco Bay Area. She graduated with honors and now holds a Bachelor of Arts in History from San Francisco State University and two Associate Degrees from Contra Costa College. In the past some of her volunteer work includes tutoring in English as a second language to primary school children and working with Oakland Children's hospital as a volunteer for their annual Rubber Ducky Derby. Haley strives to show today's youth how to set and accomplish goals through hard work and dedication. She hopes that they will set goals throughout all aspects of their lives and continue to implement this philosophy after high school. "I want them to reach for the stars, and know that someday they can and will get there!"

  • Sofie Siegmann, Art Teacher, is a committed artist and art educator with 18+ years of teaching experience. Originally from Germany and Switzerland (she graduated from Zurich University of Art and Design), she has called the Bay Area her home for over 20 years. Sofie finds her inspiration and art materials wherever she goes: Exhibits, Nature, on sidewalks and in parks. Besides fine arts, Sofie likes to incorporate elements of design and science into her teachings. Get ready to create authentic and original artwork this coming year!

  • Ernesto Umaña, 7th and 8th grade Math Teacher, has a Bachelor of Arts in Political Science & International Affairs from UC Riverside and a Master in Public Policy from Harvard University. Before joining Manzanita, Ernesto spent the summer teaching summer school in San Jose with Summit Public Schools. He is originally from Los Angeles, California, but considers himself a world citizen having travelled to 13 different countries. When he is not teaching math, he is busy planning his next trip.


If you are a substitute and need information on the school, please call our School Office.

Board Members:

  • Board Chair: Cruz Castillo
  • Board Secretary: Christina Fernandez
  • Fiscal Manager: Jennifer Sandkuhler
  • Board Member: Cristal Banagan
  • Board Member: Mayra Corleto
  • Board Member: Lisa Gillispie
  • Board Member: Tiffany Harris
  • Board Member: Francisco Ibarra

Board members may be contacted through the School Office.

461 33rd Street, Richmond, CA 94804 | 510-222-3500 Phone | 510-222-3555 Fax

Copyright © 2000-2017 Manzanita Charter Middle School. All rights reserved. Manzanita is a 501(c)(3) non-profit, tax-exempt organization.
Donations are tax-deductible to the extent allowed by law. Tax ID #68-0450000.

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