About Us

Jennifer Gumina-Silver – Executive Director

Jennifer Gumina-Silver has co-owned and operated Tiny Giants with her sister, Erin, since January of 2004. Prior to opening the center, she pursued her Bachelors of Science in Child Development at the University of California, Davis. She continued her education at the University of San Francisco where she was awarded a Multiple Subjects Teaching Credential and a Masters Degree in Education. She began working in the Santa Clara Unified School District as a Kindergarten teacher. Jen continued teaching Kindergarten in the Jefferson School District of Daly City after two years, where she remained for another six years. Prior to and during her work as a teacher, Jen taught in an Archdiocese of San Francisco School, owned and operated a summer school program for kids in grades K-8, ran an after school tutoring program, coached athletic teams for children in elementary through high school, and was a nanny. Her experience, combined with that of her sister, and desire to start a school of her own was the perfect formula for the success of Tiny Giants. Jen is deeply rooted to the city of San Francisco. The child of two native San Franciscans and married herself to a San Francisco native, she plans to raise her three beautiful children here in the city. Jen enjoys spending time with her friends and family and has thrown herself whole-heartedly into making Tiny Giants a huge success. Making kids happy and building a solid foundation upon which children can build in years to come is what she strives for when working with children.

Erin Gumina – Executive Director 

Erin Gumina is very excited to be living her life long dream as a co-founder and owner of Tiny Giants Preschool and Childcare Center. She began her career with children after studying Child Development at the California State University at Chico. Erin returned to her native San Francisco after her studies and began working at a multi-age preschool in San Mateo. After one year she became a lead teacher at the Laura Vicuna Pre-Kindergarten in San Francisco’s North Beach District where she taught for six years. In addition to her work as a teacher, Erin has been a swim instructor, a nanny, a tutor, and has run an after-school program for young children. She has always worked with children and continuously strives to provide all children she encounters with positive, safe and fun learning experiences. Erin loves to dance and enjoys music. She has four brothers and sisters who all still reside in the city and is the proud Auntie of eight beautiful nieces and nephews with whom she spends much of her free time. She has a fun loving, carefree spirit and looks forward to a long career in working with children at Tiny Giants.

Jessica Larson – Preschool

Jessica comes from Arizona and attended Arizona State University. She graduated in 2007 with a Bachelor of Arts in Early Childhood Education. Jessica moved to San Francisco in 2010 and joined the Tiny Giants family shortly after. She worked in the full-time program with two to five year olds as one of the lead teachers before moving to the Preschool program last winter.

In her free time Jessica enjoys spending time with her friends and family, traveling, and exploring San Francisco. Ever the sports fan, she is usually cheering for one Arizona sports team or another. She has also coached soccer for many years and enjoys playing from time to time. Jessica looks forward to another fun and exciting year in preschool!

Missy Englehardt – Preschool

Missy was born and raised in Lodi, CA and currently lives in San Francisco. She attended Sonoma State University where she received her Bachelors of Fine Arts with and emphasis in Sculpture and a Minor in Art History. In 2011 she moved to San Francisco and attended San Francisco Art Institute where she received her Masters of Fine Art with an emphasis in Sculpture. Missy has been working with children for many years as a babysitter, nanny, as an art teacher, a summer camp teacher, and teaching/coaching Tiny Tot soccer. She is currently a working artist and children’s book illustrator. She spends most of her free time with family, making art, or babysitting. She is so excited to be part of the Tiny Giants family and is enjoying getting to know all the children and families.


Kim Quinn – Preschool

Kim was born and raised on the Peninsula and currently lives in San Francisco. She attended Sonoma State University where she majored in sociology and minored in child development. Kim loves to spend her free time shopping, spending time with friends and family, playing and watching sports, and rooting for the Giants and 49ers.
In high school Kim realized she wanted to work with kids, while she taught a first grade Catechism class. Throughout college she worked at a preschool in the three and four year olds’ classrooms while she took various ECE classes to further her knowledge in the field. After graduating, Kim worked for the Parks and Recreation Department in South San Francisco as a coordinator for a summer camp and after school program. Kim has worked at Tiny Giants since 2010 and looks forward to the new school year.

Ali Haas – Preschool

Ali was born and raised in Sacramento, CA, and recently relocated to San Francisco.  It was time for a big city change! She graduated in 2012 with a M.A. degree in Counseling Psychology from Sacramento State University. While working towards her degree, she enrolled in classes and learned about early childhood education. Prior to coming to Tiny Giants, Ali worked as a preschool teacher for five years at a Montessori School in Sacramento where she developed a passion for teaching children.  She especially enjoys developing creative art and circle-time activities as well as learning each child’s unique personality.  In addition to preschool teaching, Ali is working on her clinical hours toward licensure as a Marriage and Family Therapist. In her free time she enjoys traveling (so far she has visited 11 countries!), meeting new people, spending time with friends, shopping, event planning, reading, going      to as many concerts as she can, and exploring all San Francisco has to offer!