About : Team


Cow Hollow School thrives using a combination of professional educators and parent participation. Our strong administrative leadership determines, alongside the extremely qualified faculty (many holding graduate degrees in early childhood education) the curriculum of the school and oversees admissions and operations. Each family at Cow Hollow School shares talents, skills and enthusiasm in many ways—teaching in the classroom, helping with school activities, serving on committees, coordinating fund raising events, and so much more.


Darcy Campbell Darcy Campbell, School Director – Darcy has been directing at Cow Hollow School since 2002. Darcy has over 30 years of experience working with teachers, families and children in the Bay Area. She has more than 25 years of Site Administration experience and has taught and learned from children three months to twelve years old. She teaches early childhood and elementary education courses at San Francisco State University and conducts early childhood training and consultations with families, schools, and educational organizations throughout the Bay Area. She is a strong advocate for children and specializes in reflective, responsive, collaborative teaching and parenting practices. She is an active member of and presenter for the National Association for the Education of Young Children. Darcy holds a graduate degree in early childhood development. (dcampbell@cowhollowschool.org)
Trevor Valentino, Assistant Director – Trevor has been teaching at Cow Hollow School since 2007. Trevor received his B.A. in African American Studies and English at the University of California, Berkeley. He later received an M.A. in early child education from San Francisco State University where he wrote about his collaborative experience with teachers in Kenya.  He comes from a strong constructivist perspective which endorses an emergent curriculum, child-centered approach to education. He is interested in inclusive early childhood programs and the effects such programs have on children’s social consciousness development.  He is currently studying how to support teacher collaboration within early child education settings. Trevor is also the Summer Program Coordinator which he has helped run for the last three years and part time Assistant Director during the school year.(tvalentino@cowhollowschool.org)

photo 4 Leslie Norris, Office Administrator and Director of Admissions– Leslie joined the Cow Hollow School community in 2004 as a parent. Since then, two of her children have graduated from Cow Hollow School with one interning during the CHS Summer Program. Leslie has served on the Parent Association and Cow Hollow School Board as Director of Community Enrichment and Visibility. Leslie began working as the school office administrator and admissions director in 2009. Leslie has taught at Mary Meta Lazarus Child Development Center at the College of San Mateo and The Lyceé Francais in San Francisco. She received her Masters in Early Childhood Education and California Teaching credential from Mills College. (admissions@cowhollowschool.org)


Tim Peak has been teaching at Cow Hollow School since 2011. He graduated from the University of Wisconsin, Whitewater with a dual bachelors focusing on Early Childhood Education and Early Childhood Special Education. He has known since he was very young that he wanted to spend his life teaching and officially started working with children at sixteen. He has worked in a variety of educational setting, including most recently the University of California, Berkeley in their Early Childhood Program and then as a nanny. Tim continue his lifelong journey of teaching and learning, believing that working with young children is the best way to never forget about your own inner child. (garden@cowhollowschool.org)
 Abillante Headshot Alessandra Billante started working at Cow Hollow School in 2015. She has worked with infants, toddlers and preschool age children for the past 4 years. She received her B.A. from California Polytechnic State University and then went on to receive her M.A in Early Childhood Education from San Francisco State University. Alessandra is passionate about early childhood education and motivated by children’s curiosity to explore the world around them. Alessandra is also a postpartum doula and finds inspiration from the relationships formed with the infants and families she’s helped.(abillante@cowhollowschool.org)
Blanche Lonsburry Blanche Lonsbury – Blanche has been part of the CHS community in a variety of capacities since 2011. She has acquired a BA in Child and Adolescent Development from San Francisco State University. Just recently she and other members of the Cow Hollow Team were selected to share research on Children and Citizenship at the California Association for the Education of Young Children. She is inspired by children’s natural curiosity and inclination to learn. There have been a myriad of theorist in her studies of Early Childhood Education who have influenced, inspired, and or shifted some facet of her own pedagogy. First and foremost, some of those theorists are the children with whom she feels privileged to learn from and with. She is excited to be here at Cow Hollow and continue learning with the community- parents, teachers, and children. (blonsbury@cowhollowschool.org)
 2013-08-22 14.18.38 Bryn PotterBryn Potter O’Shea has been working with young children and their families since 2004, and started at Cow Hollow School in the fall of 2007. Since then she has taught in each classroom at CHS. Bryn holds a BA in Studio Art from UC Santa Cruz, a California Master Teacher and Site Supervisor Permit, and an MA in Education with a focus on Early Childhood Education from San Francisco State University. Her 10+ years of teaching experience include working with infants and toddlers in employer-sponsored childcare settings, and with preschoolers and adult student teachers in early childhood lab school  and bilingual settings. In addition to classroom teaching, Bryn facilitates workshops for early childhood educators, with organizations including Headstart, Teach for America, CAEYC, SFSU, and the Innovative Teacher Project. She is proud to have served as Faculty Chairperson for CHS CIVIC committee (Citizenship, Identities, Values, Inclusion, and Cultures; formerly the Diversity Committee) since 2007. In this role she spearheaded CHS’s demographic survey project, and continues to passionately support diversity, equity, and anti-bias education in our school and broader community. (bposhea@cowhollowschool.org) 
Jenna Betterly Jenna Betterly – Jenna has been teaching at Cow Hollow School since 2008. Jenna received her BA in Child and Adolescent Development with a concentration in Young Children and Families from San Francisco State University. While earning her BA, she also worked at the Early Childhood Education center on Campus working with children ranging in ages from 3 -5 years old. Jenna is currently enrolled in the MA program in Early Childhood Development at San Francisco State University.                      (jbetterly@cowhollowschool.org)

Headshot Melissa Rivers – Melissa has been teaching at CHS since 2008. She received her Bachelor of Arts in Child Development from Sacramento State University, where she also ed at the children’s center on campus (a laboratory preschool). She has worked with children ranging in ages from 6 months to 6 years old for 10 years. She is currently enrolled in the masters program in Early Childhood Development at San Francisco State. In 2014, Melissa presented at CAEYC Conference with two of her colleagues on Children as Citizens.  (mgarcia@cowhollowschool.org)
Mica Headshot  Mica Crittendon- Mica started working at Cow Hollow School in 2015. She has worked with young children 4 months to 5 years old for more than 8 years. From a very young age, Mica knew that working with children was her calling. While working towards furthering her education, she worked at a Child Study Center and also at an Arts Enrichment program in the East Bay. Mica received her Bachelor’s Degree in Child and Adolescent Development, with an emphasis in the young child, at San Francisco State University. She is currently enrolled in the Master’s Program also at San Francisco State University, and will receive her MA in Early Childhood Education in spring of 2015. Mica is inspired by children’s authenticity, curiosity, and innate ability to construct their own knowledge and she uses this as a driving force in partnering children and families. (mcrittendon@cowhollowschool.org)

 Minjae Bae Minjae Bae – This is Minjae’s first year at Cow Hollow School. She graduated from Smith College with a B.A. in Studio Art, and received an M.A. in Human Development with a focus on Early Childhood Education from Pacific Oaks College. Minjae spent the last 13 years at Bing Nursery School at Stanford University, 10 of which she has been teaching children 2-5 years old. She loves the power of learning through play, and never tires of seeing the wonder in the eyes of young children as they make new discoveries and connect with the world. (mbae@cowhollowschool.org)
IMG_9732 Petra Fraties – Petra began teaching at Cow Hollow School in 2006, and has worked in the field of Early Childhood Education for 13 years. Petra holds a B.A. in Child Development, a M.A. in Early Childhood Education, and a California Master Teacher Permit. Her Master’s thesis project culminated in researching how to use storytelling to build community in the early childhood classroom. Petra values the relationships built between children, teachers, and families through shared school experiences. Petra has experience presenting at educational seminars in California and nationally. She also enjoys facilitating workshops for parents and educators.. (pfraties@cowhollowschool.org)
Patricia Phillips Photo   Patricia Phillips- Patricia began working at Cow Hollow School in the Spring of 2016. Patricia  was born and raised in Mexico City where she had a terrific childhood. She grew up speaking Spanish and French and traveling. After three years in Paris where she prepared for the Beaux Arts entry competition, she returned to America and earned a Bachelor in Fine Arts with emphasis in painting from the California College of Arts and Crafts. Becoming a parent inspired Patricia to become an early childhood educator. She likes to think that when Victoria, her oldest daughter started preschool, she too started preschool and embarked on a lifelong learning journey. She returned to college to study Early Childhood Education and obtained her Child Development Site Supervisor permit. Patricia feels very fortunate to work everyday in a field where nothing is ever the same, where children and adults alike are open to each day’s experiences, and eager to share what they learn.
photo (8) Jamie Kelty, Teaching Artist – Jamie has been with Cow Hollow School since 2012 and has enjoyed the privilege of sharing art experiences with children since 1992. She works also as an assemblage/collage painter with a variety of mediums which translates well into exploring a multitude of materials with children. She received her B.F.A. in painting and her K-12 art teaching certificate from Fort Hays State University in Kansas. Jamie taught art in schools in Kansas, Missouri, and New York City.  She worked at the The Children’s Museum of the Arts in New York teaching in public programs and in schools, creating programming, and managing the Fine Arts Studio teaching artists. Jamie regularly presents studio workshops for parents and educators through The COLLABORATORY at Cow Hollow School and The Innovative Teacher Project in San Francisco. (studio@cowhollowschool.org)
NinaSaraceno (1) Nina Saraceno, Movement specialist- Nina began her dance training at age four with the Ana Roje School of Ballet.  She also studied and performed as a fourth generation Isadora Duncan dancer with Sylvia Gold and Dicki Johnson Macy.  She eventually went on to teach Duncan technique and repertory to children and adults. As a late teen, she designed and implemented a creative movement program for 5-12 year-olds at Running Brook Day Camp in Waltham, MA. Nina performed professionally with the Boston Dance Company during high school then received her bachelor’s degree in Dance and Psychology from Skidmore College in 2003.  These degrees were put to use in the Boston area with Project Joy and Boston Children’s Foundation’s Rainbow Dance program. She co-developed and led therapeutic playgroups and dance classes in a number of Boston area preschools and Head Start centers.  These programs used music, movement, yoga and imaginative play to promote self-esteem, self-expression, mind-body cohesion and social awareness. She also continued her dance career performing with Anna Myer and Dancers of Boston 2003-2008.  She danced with Ariel Rivka Dance while living in NYC and is a current member of Palanza Dance in San Francisco. She has also participated in projects with Garrett & Moulton Productions, Project Tremolo, Interweave Dance Theatre, Commonwealth Shakespeare Company among others. Nina loves to teach and is fascinated by the human body, its capabilities, intelligence and expressive nature.
samb-headshot Sam Burke, Substitute Teacher- Sam Burke will be substituting this year with us at CHS. Sam received her BA in Human Development with a minor in Early Childhood Education from Sonoma State. She moved to San Francisco to acquire her California Teaching Credential and has taught Transitional kindergarten in the Bay Area for the past three school years. Sam has worked with children ages three months to thirteen years old in a variety of settings but is particularly passionate about early childhood education. She is currently a literacy coach and creates individualized intervention plans for struggling elementary-aged readers. Sam looks forward to joining the CHS family and collaborating with the passionate team of educators.
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Katy Detrick– Katy is just beginning her time with Cow Hollow School as an intern while continuing her education at San Francisco State University. She will be graduating in Fall 2017 with her B.A. in Early Childhood Development. Katy has a genuine passion for early childhood education and for creating strong relationships with children and their families. She is excited and motivated to grow as a teacher, and is excited to learn from the Cow Hollow team.



Teaching Parents – Parents in the Cow Hollow School Community teach in their child’s classroom alongside the teachers and are an integral part of the classroom community. Families in the two’s and three’s classes are scheduled for parent participation days once per month. Families in the four/five’s classes are scheduled for parent participation days 2-3 days per semester.

Parent Association – The Parent Association is committed to developing and strengthening the family-school partnership, and building a strong community to enhance the experience of all children. All CHS parents are members of the Parents’ Association. The Parent Association is led by a dedicated Executive Committee.

Room Parents – Room Parents serve as the liaison between, and partner with, their child’s class, teachers, and Director.