Educating the Whole Child

A Christian Montessori school for children ages 3 years to 15 years

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Our mission is to provide a Christ-Centered Montessori Education.


Essential to truly educating the whole child is to nourish their spiritual lives. At Coastal Sage Montessori, we believe that each child is unique, made in the image of God and earnestly seeking to understand the world around them, who they are, and what they are made for. Our teachers act as guides helping our students to develop intellectually and spiritually. Each day we start with a devotional time, scripture memorization and reflections. It is our goal to develop servant leaders who are bringing all they have to those around them and into the global community.

Why do families choose Coastal Sage Montessori?

Individualized learning

Lessons are designed and given to each child when they are most ready to learn.

Whole child education

Social, emotional, and physical development is emphasized along with academic skills.

Christ-centered

Essential to truly educating the whole child is to nourish their spiritual lives.

Nature Integrated

Nature and the outdoors are integrated as a natural overflow of the learning environment.

Programs

Nature as a learning environment


At every level of the Montessori education the children work and learn through nature. During the Elementary years the students’ outdoor learning environment includes: a garden they are responsible for tending, nature walks and ongoing nature study.

“Our son came to Coastal Sage Montessori with an IEP and a history of struggling to find a sense of belonging within a typical classroom. Within only weeks of attending the school our son showed immense improvements in all areas of academics and instead of dreading the classroom experience he was excited to attend every day. We watched as he began to see for himself that there was a place for him where he belonged in the world of learning and our son's confidence exploded as he attended and found a learning path that works best for him.”

Parent of 12-year-old son attending CSM

Visit us!


We invite you to visit our school, meet the teachers, and observe the children in their classrooms. We encourage you to ask questions and learn about the opportunities available at all levels of our programs.

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The latest from our blog.

March 10, 2026
At Coastal Sage Montessori, students are encouraged to be servant leaders - both in the classroom and in the community. This month, our students will be participating in service throughout San Diego County! On March 24th, our lower and upper elementary will be participating in a beach clean-up and our adolescents will be supporting the San Diego Food Bank at their new Vista Location. If you would like to join us as a chaperone or support with transportation, please email Grace - grace@coastalsage.org .
March 10, 2026
Signe, our school director and mother of six children, and her husband Juan Castañeda, will be hosting parenting classes. The series will cover topics like screen-time, discipline and what makes a family. The first will take place on March 26th at 6:00pm. Join us and bring a friend! To register, please sign up below. Upon registering, we will email you a confirmation with location details. Stay tuned for more classes!
March 10, 2026
Paddles for a Purpose

The 6 Reasons Montessori Will

 Work For Your Child


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Coastal Sage Montessori admits students of any race, color, national and ethnic origin to all the rights, privileges, programs, and activities generally accorded or made available to students at the school. It does not discriminate on the basis of race, color, national and ethnic origin in the administration of its educational policies, admissions policies, scholarship and loan programs, and athletic and other school-administrated programs.