Welcome to La Tercera!

  • La Tercera Elementary School is the first elementary STEM school in Sonoma County. As a STEM (science, technology, engineering, math) focused school, we are creating the next generation of innovators. We offer your child different ways of learning with a "hands-on” approach to learning. With pride, energy, engagement, perseverance and ownership of learning, our La Tercera students prepare for the future using out-of-the-box thinking to do amazing things as a student in our learning community. We offer a dedicated science lab and science teacher funded by our ASK Foundation. With project based learning, and Pearson Project STEM deeply embedded in our classroom core curriculum, our teachers and staff have created a learning community that is preparing students for 21st Century careers and college readiness.

    Our vision for our students is bold and bright. La Tercera graduates will be independent and collaborative solution seekers who are resilient, respectful, academically successful and responsible citizens of the world. We accomplish this mission because we have committed professionals, from teachers to campus aides, who are passionate about their calling. School is not just a place where we work, it is a place to change the world by impacting the lives of the children in our care. At La Tercera, we value the close bond we have with parents. We understand that home and school relationships are essential to student success. Parents in the classroom, parents on field trips and parents as members of PTA; your child knowing you are an active collaborator in their learning community is very important.

Headlines & Features

  • La Tercera Participates in the 2nd Synopsys-Sonoma County STEAM Showcase

    Our first and second grade STEM Eagles were among 750 students from 70 school districts who demonstrated innovative, engaging learning projects that came from teacher created project-based learning units this last report card period at La Tercera, a STEM Elementary School. Friday, March 2nd, Mrs. Galster, Mrs. Schulz and Mrs. Wilson took 10 of our students. Here is what Mrs. Jolly had to say about the event, " My students were thrilled and the microbit they coded and programmed will be an asset

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  • At LT, We are proud of our Heritage: Join us for our Cinco de Mayo Fiesta for Everyone!

    La Tercera, the first STEM elementary school in Sonoma County is proud to be a school that represents the strong immigrant history of our great nation. Upwards of 30 percent of our students speak English as a second language at home. On any given day, you might hear Spanish, Vietnamese,Punjabi, Madarin, Cevuano and Japanese spoken in the quad! We have

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  • PEF Helps La Tercera Soar Through A Series

    La Tercera students are Soaring Through A Series with over $10,000 awarded by the Board of Directors of the Petaluma Educational Foundation to support our book series initiative, book lending stations and Lucy Calkin Units of Study for Teaching Reading. This grant supports our Local Control Accountability Plan (LCAP) work in reading comprehension and provides us additional tools and ways to reach our site and district reading goals for every student in our care.

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  • Registration Has Begun: First Cut-Off is February 28th

    Please call our friendly office staff at 707-765-4303 anytime between 8:30-3:00pm to schedule a tour of La Tercera, a STEM Elementary School. Tours are on Tuesdays and Thursdays at 9:00am. La Tercera will hold a Parent Information Night in our state-of-the-art Science Lab on Tuesday, January 30th, from 6-7:15pm. Please come meet our PTA, teachers and principal who will share with you our curriculum, community events and dynamic STEM focus with a tour of our makerspace available if you are interested. Important information for you: Students who turn 5 years old on or before September 1, 2018 are eligible to attend Kindergarten for the 2018-2019

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  • Girls on the Run Coming starts 2/12th - Interested in Helping out?

    Using the power of running and being active, girls learn important life skills such as teamwork, leadership, goal-setting, conflict resolution and healthy decision making. Beginning September, young girls can participate in an exciting, new running program at La Tercera. Girls on the Run is a fun after-school program for 4-6 grade girls that meets two times per week for 10 weeks. At the end of the program, all girls participate in a non-competitive 5K (3.1 mile) run/walk event as a final personal challenge for the season. Many girls unable to run one lap at the beginning of the program

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  • STEM Art Mural Project Beautifies La Tercera Campus

    A special Art Mural project kicked off the 2017-18 school year at La Tercera with art that engages all our students and enhances our school’s creative environment. Panels give visual voice to “everything we love about STEM” and reflect real learning activities/approaches undertaken in the classroom: focus is life-science. Class by class,

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