Oak Grove’s expanded early childhood program emphasizes the emotional and academic benefits that can take place when parents and children learn together. Three facets make up the early childhood program at Oak Grove School. They include parent-infant and parent-toddler classes, a developmental preschool for three- to five-year-olds, and a transitional kindergarten program.

Observation, interaction and trust provide a foundation for Oak Grove's infant-parent and toddler-parent programs. Children and parents come together to learn, play and observe. Facilitated by an early childhood educator, these gatherings give parents and children the opportunity to connect with other families in an enriching, safe environment and ask questions about child development. Infant-parent classes (newborn to 18 months) meet weekly for an hour, with approximately four infants per group. Toddler-parent classes meet one or two times each week for a two-hour period and include approximately eight toddlers per group.

At Oak Grove's preschool program, an environment is created where learning takes place naturally and intellectual growth flourishes, but is never forced. Through stories, art, nature, indoor and outdoor activities and movement, children are supported as they explore their world and become more independent. Emphasis is placed on healthy peer relationships and peaceful conflict resolution skills. See the admissions section for an overview of early childhood program tuition fees.

The Oak Grove kindergarten classroom provides a balance of small group, whole group, and individual activities, which nourish a sense of wonder and reverence for all life. The children experience a balance of active exploration and periods of quiet work in small classes of approximately 15 children. The curriculum goals are appropriate to the developmental level of the child, beginning with the manipulation of concrete objects and moving toward more abstract skills. A solid relationship between the kindergarten and the elementary school curriculum provides a gentle transition to the elementary school.