Montessori and Transitional Kinderg …

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June 28, 2025

Montessori and Transitional Kinderg …

As parents navigate early learning options for their child, we want to provide guidance to help them plan the roadmap for their child’s educational journey. One question that has recently come up is “What are the differences between a Montessori Primary program and the Transitional Kindergarten (TK) program at a public school?”. 

Given the significant differences, here is a breakdown of how a Montessori Primary program is often considered different from the new TK model. At its core, a Montessori Primary program ranges from children 3-6 years old and is a philosophy of education, whereas a Transitional Kindergarten program is a specific school grade.

Montessori is a comprehensive approach to child development, focusing on the whole child—cognitive, social, emotional, and physical—by nurturing their natural curiosity. A key element of the Montessori early childhood classroom is multi-age grouping, called the Three-Year Cycle. In this structure, the oldest children who are in their third year (around age 5-6) take on leadership roles, which helps develop their learning and social skills. This third year, the most critical one, effectively serves a purpose similar to today’s Kindergarten with an enhanced educational environment. As the American Montessori Society notes, A Montessori Early Childhood classroom feels more like a home than a school. You won’t see desks, nor will a teacher stand at the front of the room delivering a lesson to the whole class. Instead, you’ll see children happily working individually or in small groups, at tables or on the floor near small mats that delineate their own space.” These Montessori classrooms prepare children for Elementary school and beyond.

TK is a public school initiative designed to bridge the gap between preschool and kindergarten, making kindergarten more accessible and preparing children for the academic and social expectations of a K-12 public school. 

Key features of a Montessori primary through Kindergarten program include:

  • Montessori Philosophy: Emphasizes independence, self-directed learning, and respect for individual pace.
  • Structured Approach: Offers a structured environment that focuses on academic preparation for Kindergarten.
  • Mixed-Age Groups: Typically includes a mix of children aged 4 and 5, promoting social interaction, confidence, independence and peer learning.
  • Hands-On Activities: Utilizes Montessori materials and activities to foster cognitive development and problem-solving skills.
  • Strong Foundation for Kindergarten: Effectively and methodically prepares children for the academic challenges of Kindergarten.
  • Social-Emotional Development: Fosters independence, self-discipline, and respect for others.
  • Love of Learning: Cultivates a passion for learning and exploration.
  • Individualized Instruction and Attention: Allows children to learn and progress at their own pace. Instead of leading the class, teachers serve as guides, observing each child and working alongside them in a prepared classroom to foster independent problem-solving and a love of learning.


The concept of Transitional Kindergarten as a distinct program is a more recent development in some educational systems, particularly in the United States. It arose to address the needs of children who may be chronologically eligible for kindergarten but not yet developmentally ready for Elementary school. In essence, Montessori’s 3-6 year program inherently provides a Kindergarten-like experience for the older children.

Key features of a Public School TK:

  • The Bridge Program: TK is designed for children who are not yet developmentally ready for the demands of a traditional Kindergarten classroom
  • Structured, teacher-led approach: Curriculum is often more standardized. 
  • Larger class sizes: The average class size consists of 32 students per teacher. May not offer the same level of individual attention as Montessori. 
  • Focus on school readiness: Prepares children for the expectations of kindergarten in a traditional setting. 
  • May involve more worksheets and structured activities: Potentially less hands-on and experiential learning. 

In summary, while a Transitional Kindergarten program provides space for children to bridge the gap between preschool and kindergarten, and a valuable, free early learning option that prepares children for the public school system, the Montessori Primary program is a more comprehensive, long-term educational model. Montessori primary programs are designed to cultivate a child’s independence, concentration, and love of learning over a three-year cycle, preparing them for intellectual curiosity and leadership beyond just the kindergarten classroom.

To schedule a tour to see how your three to six-year-old child can thrive, please visit: http://lajollamontessorischool.com/book-a-tour/