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  Sheryl Ahrens Staff
  Gabriela Alvarez (925) 377-2091 Counselor
  Ms. K. Anderson (925) 377-4239 ELA Teacher
  Mr. Benton Teacher
  Mr. Blalock (925) 377-4250 Science Teacher
  Julie Carlson Library Media Specialist
  Catherine Cespedes (925) 377-2092 Learning Center Teacher
  Ms. Contreras (925) 377-4246 Spanish Teacher
  Ms. Cortright (925) 377-4238 Core Teacher
  Mrs. Danilson (925) 376-7206 Principal
  Ms. Detter (925) 289-8035 ELA Teacher
  Alberta Falcone (925) 377-4255 Textbook Coordinator
  Olivia Flint (925) 255-5476 School Psychologist
  Ms. Gavello (925) 377-4247 French Teacher
  Mr. Gilbert (925) 377-2092 Learning Center Teacher
  Mr. Gruen (925) 376-8743 PE Teacher
  Mrs. Gruen (925) 377-4241 Core Teacher
  Annette Herbert (925) 377-4223 Student Support
  Genevieve Huttman Learning Center Teacher
  Mr. Kamian (925) 377-4228 Math Teacher
  Katy Keough Staff
  David Lanuza (925) 377-4217 Assistant Principal
  Mrs. Lezak (925) 377-4241 Science Teacher
  Ms. Lichti (925) 377-4245 ELA Teacher
  Ms. Lockett (925) 377-4252 Science Teacher
  Mr. Lorie (925) 377-4233 Math Teacher
  Margaret Rosso (925) 376-7206 School Secretary
  Mrs. Marin Math Teacher
  Mrs. McDevitt (925) 377-4226 Social Studies Teacher
  Mrs. Navarro (925) 376-8743 PE Teacher
  Leann Nixdorff Teacher
  Linda O'Brien Staff
  Noriko O'Neal Staff
  Alisa Oliver (925) 376-7206 School Secretary
  Marie Olson Speech/Language
  Mrs. Shimer (925) 377-4236 Math Teacher
  Quinn Silberman Staff
  Susanna Siu Staff
  Mrs. Standring (925) 377-4248 Science Teacher
  Ms. Steelman (925) 377-4234 Math Teacher
  Robert Todd Music Teacher
  Ms. Tondi (925) 377-4249 Science Teacher
  Virginia Vu (925) 377-4225 ELL Teacher
  Hongmei Wang Mandarin/MathTeacher
  Ms. Warmboe Social Studies Teacher
  Mr. Wayne (925) 377-4230 ELA Teacher
  Ms. Moose Wesler (925) 377-4254 Visual Arts Teacher
  Ms. Wire Learning Center Teacher
  Scott Wysocki (925) 377-4237 ELA Teacher




Mrs. Ahrens is a Learning Center Assistant for 6th/7th/8th grade at JM. She grew up in Moraga and attended JM and Campolindo High School. She has undergraduate degrees in English Literature and Spanish Language and Literature from the University of California at Santa Barbara. Mrs. Ahrens also has a Master’s Degree from San Francisco State University in Broadcast Journalism. Prior to having children, Mrs. Ahrens worked at KGO-TV and in Silicon Valley in the high tech public relations industry.  Mrs. Ahrens has been working for the Moraga School District in Special Education for the past 6 years. She enjoys working with children, traveling with her family and watching her kids sporting events.  


Gabriela Alvarez is our school counselor at J.M. Gaby received her teaching credential and masters degree in Education at Stanford University  and served as an intern Spanish teacher for 1 year at James Lick H.S. She was a Spanish and ELL teacher for 3 years at Chatsworth H.S. and a Spanish and Enrollment Coordinator for 1 year at Leadership Public Schools. She later obtained her a masters degree in Counseling at San Francisco State University and was a counseling intern at LPS and Presidio M.S. where she later became the 8th grade counselor. She will help run various programs here at J.M. including the WEB team, SSA, conducting lunch and after school groups, 504 meetings and providing individual academic and emotional support to students who are in need.  For fun Gaby enjoys swimming, going camping and snow boarding in Tahoe and spending time with her family especially her two twin boys.




 Julie is thrilled to be working at JM as the library media specialist.  She's lived in Moraga for over 20 years and has two sons in college.  Julie has a B.A. in English from UCLA, and an MBA from Santa Clara University.  After college, she taught high school English for the Peace Corps for two years.  She also worked as a investment analyst for over a decade.  In her spare time, she loves to write, garden, and go for walks with her two beagles. 


Born and raised in the Bay Area, Joan received her Bachelor of Arts degree in Theatre Arts from San Francisco State University. After receiving her Single Subject in English and Physical Education from San Francisco State University, she spent ten years at the high school level teaching drama and dance. During this time, Joan entered into leadership roles and returned to school to earn her Administrative Credential and Masters in Educational Leadership from California State University, Hayward. After four years as a high school assistant principal and eight years as a middle school assistant principal, Joan joined Joaquin Moraga Intermediate School as a principal in 2010.  On a personal level, Joan is married with three children.  They enjoy weekends on the soccer field, winters skiing and summers boating.  She is committed to the success of all students and working in partnership with families to ensure their success.


This is my tenth year as a teacher.  My teaching experience has been primarily in the Oakland Unified School District, where I taught multiple subjects in grades 3 through 5, 7th grade English, and specialized reading instruction. I live in Walnut Creek with my husband and have two college-aged daughters, as well as three cats and a dog. I am an avid reader and movie-goer, and a novice horse rider.


Olivia is excited to be the School Psychologist at Joaquin Moraga. This is her 16th year of working in schools and with children. She taught in Osaka, Japan, Philadelphia, Pennsylvania and Mill Valley.  She has experience doing counseling and psych-educational assessment in schools in Berkeley, San Leandro, and San Ramon. Olivia has worked with children between the ages of two and twenty, and most recently, was a Transitions Counselor at Orion Academy in Moraga. She is passionate about disability rights and making sure that all children are supported and welcomed at school. She loves collaborating with teachers and parents to this end. 

Olivia has a BA in English Literature and Psychology from Smith College, an MS Ed in Elementary Education from the University of Pennsylvania, and is currently completing her PhD in School Psychology at the University of California, Berkeley. 

Olivia lives in Berkeley with her husband and son. She loves reading mysteries and adventure novels, watching comedies, and singing silly songs with her toddler (and anyone else, really). 


Jerry Gruen teaches Physical Education at JM, and  has led the eighth graders of Joaquin Moraga to Washington D.C. since 1996.  Before coming to Moraga, he taught in the West Contra Costa Unified School District and at Fairmont Private School in Anaheim.  Mr. Gruen received both his Bachelor’s Degree, in Kinesiology, and his Master’s Degree, in Applied Physiology, from Long Beach State University.  His teaching credential was earned at Chapman University.

He enjoys working with his wife, Lisa Gruen, who is a sixth grade Core teacher at JM.  In his free time, Mr. Gruen enjoys coaching, reading, running, and exploring with his family.


Lisa Gruen is a Sixth grade Core teacher at Joaquin Moraga. She is happily married to one of JM’s Physical Education teachers and mother of two sons.  She is an energetic, artistic, and gentle Hawaii-raised woman who is a perfect example that the Aloha spirit can live outside the islands. She focuses on the whole child in her classroom enjoys partnering with parents to nurture her students.

Lisa attended Marymount College and Saint Mary’s College where she earned her Bachelor’s degree in Developmental Psychology and Pre-school-8th grade Multiple Subject Teaching Credential.  She has taught first second and sixth grades. In her free time, Mrs.Gruen enjoys nature, photography, travel, volunteerism, and cooking. As long as her family is with her, Mrs.Gruen is happy.


Genevieve Huttman is a Bay Area native and has been teaching at Moraga for three years. She received her Bachelor’s degree at DePaul University in Chicago and her Education Specialist credential at St.Mary’s. In her free time she enjoys bike rides, reading, art, and spending time by the water. 


I was born in Berkeley and raised in Lafayette.  I attended UCLA for my undergraduate studies where I earned degrees in Scandinavian Literature and National and International Business Administration.  I also completed the pre-medical curriculum.  I did all of the work for my teaching credential in mathematics at St. Mary’s college.  I taught high school math for six years, and I have been teaching math at JM since the year 2000.  In my spare time, I enjoy playing golf, fishing, hiking, camping, and swimming.  I am passionate about teaching, and I am proud to serve the community my family has lived in for three generations.


David Lanuza grew up in the suburbs of Chicago and moved to San Francisco with his wife 28 years ago.   David earned his B.A. in Psychology from Beloit College in Wisconsin, an M.A. in Adolescent and Child Psychology from JFKU, and a Learning Specialist credential from San Francisco State University.   Early in his career he worked as a counselor in group homes while completing his graduate degree; during this time he determined he could be most impactful by working in schools. David taught at Campolindo High School as a learning specialist for 13 years while concurrently teaching graduate students at San Francisco State University. He worked at the Acalanes Union High School District as a Special Education administrator for 4 years before accepting the position of Assistant Principal at Joaquin Moraga Intermediate School in 2017. David loves collaborating with staff, teachers, and parents to optimize student achievement. David has 2 children, age 11 and 13, and a dog named Pickles. He is passionate about his family and spends most weekends watching his children play basketball, soccer, and lacrosse.  His personal interests include surfing the waves of Ocean Beach, yoga, basketball, and indulging in the wonderful cuisine of the Bay Area.


Ms. Lockett has been teaching at JM since 2001. She grew up in Los Angeles and has one sister. She moved up north for college, attending UC Berkeley. She was a double major in Integrative Biology and Environmental Science. She worked a few different jobs with the YMCA after graduation and then went back to UC Berkeley to get her Masters in Education and Teaching Credential at the same time with a specific focus on science education. During that program she student taught at JM and then was fortunate to get a job here upon completion of her degree. She also volunteers with the YMCA and is involved in a program called Youth and Government. She enjoys traveling and photography which has helped her teach the Yearbook class since 2010. She enjoys working with all the students and teachers collaboratively in the ECO club and helping to provide opportunities for others to truly make a difference for our future. 


Jessica McDevitt is excited to be teaching history at JM to 7th and 8th graders. Before coming to JM, Jessica taught world and U.S. history at private high schools. She earned her master’s in history and her teaching credential at San Francisco State University and did her student teaching at Berkeley High School’s International Baccalaureate School. She has a bachelor’s in English and history from the Claremont Colleges. Jessica enjoys sharing her passion for history, politics, and current events with JM students. She lives in Piedmont and has two children in elementary school. 



Leann Nixdorff has been teaching in the Moraga School District for over 20 years.  She has taught 3rd, 4th, 5th and 6th grades.  She is currently teaching 6th grade core.  She lives with her husband and 6th grade twins in Martinez California.  Together, they love taking walks by the waterfront with their dog Chappy, going to the beach and rooting for the Oakland As!


Marie is a speech therapist at JM and LP. She holds a Masters in Journalism and Mass Communication from NYU and a Masters in Communicative Sciences and Disorders from Cal State East Bay.  Before becoming a speech therapist, she worked as a teacher and a journalist and editor in New York and the Bay Area, and she became certified as a yoga instructor. When her oldest child was born with congenital deafness, she decided to change careers and start helping children and adults with communication impairments. She lives in Orinda with her husband, their 3 children ages 11, 9 and 2, and a rather interesting cat.  In her spare time, she likes to cook, hike, read, listen to music and go to her kids' soccer games.


Debbie Standring



Mrs. Standring teaches 6th grade and 7th grade Science at JM.  Mrs. Standring attended the University of California, Davis and majored in Biological Sciences. She grew up in Walnut Creek and went to high school in Oregon. Mrs. Standring lives in Moraga with her husband, Eric. They have three children. In her spare time, Mrs. Standring watches lots of volleyball, as well as other sports, she enjoys her garden and traveling. She loves all her great JM students!






Michaela Tondi has been a science teacher at JM for three years.  After completing her undergraduate degree in Marine Biology from UC Santa Cruz, she continued there for another year to earn her Masters in Science Education. She enjoys learning and teaching about marine ecosystems and conservation biology. Ms.Tondi lives in Berkeley and loves swimming, yoga, hiking and visiting her family in San Diego.



Hongmei Wang grew up in China and came to the United States 18 years ago. She has a master's degree in physics from Peking University. She has been an intensive instructional aide for four years at JM. This is her first year teaching Mandarin. During her free time, she likes to walk and read.


Kerry Warmboe has always had a passion for history; she is delighted to be able to teach both 7th grade World History and 8th grade US History at JM. Kerry grew up on the Central Coast. She received her BA from UC Santa Cruz. Go banana slugs! Then earned her teaching credential at Sonoma State University.  In her free time she enjoys traveling, reading, working on sewing projects, and of course watching Giants games.



Scott Wysocki teaches 7th and 8th grade English at JM. He earned his bachelor’s degree in English from the University of California, Berkeley and his California teaching credential from Sonoma State University. He also has an advanced practitioner certificate in educational therapy from the University of California, Riverside Extension. He has worked in English Language Arts and special education since 2008 primarily in Massachusetts’ public schools. 

Scott believes that students should learn to be independent thinkers who can make their own decisions about what they want in life. He helps them develop critical thinking and decision-making skills, emphasizing their individuality and incorporating their interests into his teaching. He strives to form alliances with students, their families, and providers to maximize student success. 

In addition to teaching, Scott has published articles in a local newspaper in his hometown of Redlands, California, worked as a technical writer for a technology company, and written for websites as a freelance content writer. Scott loves philosophy, Japanese culture and history, computers, electronics, music, jazz, animals, guitar, writing, reading, retro video game arcades, and naps. He wants to own a pet elephant.



Mr. Benton has enjoyed learning about history since he was in the fourth grade.  He has traveled throughout the United States and to different countries in Asia, Africa, and South America to research historical sites and learn more about different cultures.  Mr. Benton has a B.A. in Communications and three credentials in History, English, and Multiple Subjects.   He is proud and honored to be a member of the JM community.  Mr. Benton is passionate about sharing his love of history with his students in an informative and entertaining way that meets the needs of 21st century learners.  In his spare time, he enjoys reading, writing, exercising, and watching historical documentaries.


Mr. Blalock has been teaching at JMIS since 2011. He currently teaches Earth Science, Computer Science, and Drama. After attending Virginia Polytechnic Institute & State University and receiving his BA in Anthropology from San Francisco State University in 2005, he went on to get his teaching credential in science with a focus on the geosciences from SFSU in 2010.

Teaching our young ones the ability to think critically in an increasingly technological world is an imperative of Mr. Blalock’s approach to teaching science. Only by having an educated and discerning citizenry will we be able to choose the right applications of scientific knowledge and ultimately create a more sustainable and just society.

He is proud to have a ten year old son at Cragmont Elementary in Berkeley. His interests include: reading, music, hiking, camping, and nature.


 Catherine Cespedes is a New Yorker who has found her way from the city to sunny California! This is her 4th year of teaching, and 2nd year joining us at JM. Catherine received her Bachelor’s Degree in History from Baruch College and Masters in Special Education from Brooklyn College; both located in New York City. Catherine has co-taught 7th grade English, 8th grade Math, and is an 8th Grade Learning Center Teacher. In her free time Catherine enjoys playing volleyball, watching history documentaries, attempting puzzles that are way too hard, and camping. 









Susanna has been working in the Moraga School District for over five years, first as a TA and then as an one-on-one aide at Camino Pablo.  Currently, she works at Joaquin Moraga as a Special Ed aide.  She loves working with children, and they like to call her Mrs. Gomez or Mrs. G. She has an eighth grader at JM and a tenth grader at Campolindo.

She was born and raised in Hong Kong.  She speaks Cantonese and Mandarin.  She obtained her bachelor’s degree from SFSU and her MBA from Columbia University in New York.  Before focusing on spending time with her children, she was a Marketing Manager at American Express, a Vice President at BNP Paribas, and the Head of Marketing at Fidelity Investments in Hong Kong.


Moving back to the States from Singapore was a "re-entry" experience of epic proportion. Watching our children adjust to Moraga honed my compassion for students coping with all sorts of changes, and prepared me for my 20-year career as the District’s student support specialist.

I work under the supervision of the school psychologists at Camino Pablo, Los Perales and Rheem as the director of Kids’ Connection – our 28-year supportive play room program. I create and implement our kindergarten “Get-Along Gang” problem-solving program.

At JM I provide counseling support; assist with Safe School Ambassadors, WEB, lunch groups, and Peer Tutoring; meet with students in need of academic and emotional help, and support Student Success Team meetings.I am a member of the District’s Wellness Committee and its Student Safety Committee.



Welcome parents and students to my classroom.  I'm looking forward to teaching your child this year and meeting you as well.  First, some background on me. I have been a classroom teacher for 32 years. Twenty one of those years have been here in Moraga, the first 11 in Fairfield.  All 31 years have been teaching 7th and 8th grade English. In addition, I am now in my fourth year of teaching 6th Foods in the Wheel and also teaching the 7/8th Foods Elective Class.  My B.A. is in English, I have a teaching credential from Hayward State, and a masters degree in Humanities from San Francisco State. Second, why I do what I do. I love teaching! Whenever someone asks me what level I teach and I respond middle school, there is always one of two responses, "You're crazy." or "You're an angel."  I just smile. I think teaching middle school is fun, never the same experience twice. From the 6th graders who are getting their feet wet, to the 7th graders who are starting to be independent, to the 8th graders who need help bridging to high school, middle school provides an important learning experience for all.


Entering my 16th year of teaching (all at JM), my excitement levels are just as high as they were on my first day of teaching.  In those days, I had just completed my Master's degree and Teaching Credential at U.C. Berkeley.  Since that time I have worked hard to make math fun, engaging, and challenging.  I have also made a point to give students the opportunity to see other important aspects of life by coordinating field trips to the Monterey Bay Aquarium, a variety of theater shows in San Francisco, and multiple volunteer opportunities, from Glide Memorial Church to programs at Cambridge Elementary School.  I believe that a lot of learning can take place in a wide variety of places.  I look forward to another wonderful year!


Dawn Lezak has been teaching in the Moraga School District since 1991. She earned her B.A. at Mills College in Economics and German Studies, her Teaching Credential and Masters in Teacher Leadership at Saint Mary's College. She began her career teaching elementary school at Rheem, then moved to Joaquin Moraga to teach 6th grade Core and 6th grade Science. She currently is teaching 6th grade Science and the EARTH class. Her hobbies include gardening, hiking, swimming, skiing, traveling, and most of all learning from each day.



Christina Marin loves teaching math. She majored in math at the University of Oregon (Go Ducks!) and received her Masters in Teaching and Teaching Credential at the University of California, Santa Cruz. This is her second year teaching at JM, but her ninth year teaching math. She encourages students to take risks in math and work together to solve problems. She believes in a student centered classroom with discussion and students helping students. In her free time, she enjoys running, exercising, watching baseball and playing outside and going on walks with her two sons, her dog, Archie and her husband. 


This is Stacey Navarro’s fourth year teaching Physical Education. Prior to teaching at JM, Stacey taught in Oakland Unified. She has coached countless kids and young adults for over 20 years in many sports, with positions ranging from the Saint Mary's College Division I Volleyball team to youth camps in Europe and Southern California. Stacey was a professional athlete for 7 years, playing volleyball for teams throughout Europe and the Great Britain National Team. She played volleyball collegiately at Saint Mary’s College where her senior year team advanced to the Sweet 16. Stacey is passionate about living a healthy lifestyle and loves being home in the Bay Area where she can hike, run, cycle in boundless beautiful places. Stacey married Bryan Navarro, a fellow Gael, in March 2018. They love taking road trips, visiting Yosemite, and spending time with friends and family.






Mary Ann Shimer, who teaches Math at JM, strives to foster a love of learning in her students.  After receiving her degree in Math/Applied Science (Engineering) at UCLA, Mary Ann designed data networks for AT&T.  Mary Ann obtained her teaching credential from Cal State East Bay and values the positive collaboration of JM teachers.   With three children who attended Camino Pablo, JM and Campolindo, Mary Ann appreciates the value placed on education in the community.  In her spare time, Mary Ann loves to garden, read, and spend time each summer at the beach in Maine.


Karlene Steelman is a fifteen year veteran math teacher at Joaquin Moraga.  Karlene has been a Moraga resident since the 8th grade and attended both Joaquin Moraga and Campolindo before going to the University of The Pacific to get her degree.  She is passionate about teaching and inspiring students to see the beauty in math. She also teaches the Magic of Electrons elective. In her spare time, when she is not busy with her four children, Karlene enjoys running, reading, and playing basketball.


Moose Wesler has been a practicing artist since she was in her teens. Her art studies have taken her to London and Florence, Italy, and she has an MFA in printmaking and a Masters in Teaching. Ms. Moose loves to see what students come up with, and how each child expresses his/her own creative self. 


Ben Wayne has been teaching 7th and 8th grade English since 2000.  He started his career with San Francisco Unified School District and has recently made the move to the East Bay.   He has a degree in literature from UC Santa Cruz and received his teaching credential from SFSU.  He enjoys the vitality of students in middle school--they are eager to learn and full of energy.  He loves teaching writing and encouraging students to become lifelong learners.  When he's not teaching, Ben enjoys spending time with his wife and three children.  In addition to being a teacher, Ben is a drummer and an avid fisherman.