The early childhood program provides a safe, nurturing, and engaging environment for the youngest Principians. The Acorn Infant/Toddler program is for parents and their child up to the age of three. The Pre-School program is comprised of nursery, and junior and senior kindergarten classes for children ages three to six. Both programs provide rich learning opportunities that balance teacher-directed and child-centered activities.

At school, teachers strive to understand each child’s needs and help overcome anything that would stand in the way of the development of his or her infinite capabilities. Using a spiritual view of character education, parents and teachers work together to help the children grow in confidence, responsibility, and selflessness. After completing senior kindergarten, the children are well prepared to enter first grade in the Lower School.