Addison was founded in 1925 on land originally intended for a high school. The original building was two stories with wings at either end. The two wings still exist—Room 1, 2, 3, 8, and 9. These are the oldest existing elementary school classrooms in the district. The central structure, declared unsafe in an earthquake, was replaced by the courtyard rooms in 1968.

Our community school: Where each child is our child,Preparing for lifelong learning,Following curiosity,Meeting academic challenges,Becoming caring, tolerant, and responsible people In and for a larger world.

We are a community of teachers, children, and parents working together to create a rich, stimulating learning environment for each child. We want children to feel a sense of belonging to the whole school community, as well as to the classroom. Our weekly assemblies allow us to recognize accomplishments and share information.

During Heritage Week, children study cultures from around the world in K-5 cross-age groups. Each child has a buddy in another grade, and children also mix into cross-age groups at lunch and on the playground. Our teachers create child-centered classrooms where children work collaboratively as well as independently. Children share core experiences and have the opportunity to build on these foundations in directions that meet their specific needs and interests. Parents are also a visible presence in the classroom, guiding students in small-group activities, preparing materials, and providing one-on-one tutoring, and participating in PTA, Site Council and other decision-making bodies.