How to Structure a Three-Year Preschool Programme: Plan Backwards From Six, Build Forwards From Three
Picture a preschool where each year was written by a different person at a different time. The Level 1 plan came from a founding teacher. Level 2 was inherited and patched over several years. Level 3 was replaced last year with a school-readiness workbook because parents were anxious about primary school. Each year works on its own. Nobody can explain how they connect.
This is more common than it sounds. The Montessori Foundation, after decades of consulting with schools, reports that many Montessori schools have no clear curriculum policy or formal scope and sequence, and rely on teachers’ own lesson albums instead. The same gap appears in many other settings. The three years exist, but the programme does not.
What Does a Well-Structured Three-Year Preschool Programme Look Like?
A well-structured three-year preschool programme starts from a clear picture of what children should know, do and be like by around age six. It gives each year a distinct developmental job and revisits key skills and concepts in more depth each year. It also plans the transitions into preschool and out to primary school. The three years should read as one journey, not three separate courses.
This article is about the year-to-year architecture. Balancing domains within a week and choosing themes are separate decisions, covered in balancing learning domains in preschool curriculum[Blog 31] and how to choose themes for an early years curriculum[Blog 32].
What the Research Says
Singapore sets the endpoint first. Its Nurturing Early Learners (NEL) framework defines learning goals for the end of Kindergarten 2 (around age six). These goals are pitched so that most children can reach them, while some will keep working towards them in primary school. The framework recommends a spiral approach, where teachers introduce concepts simply and revisit them with growing breadth and depth. It also stresses that executive functioning skills develop rapidly between ages three and six, so these skills deserve deliberate space across all three years.
Montessori builds around a three-year cycle. The Montessori Foundation describes its curriculum as an inclined spiral: concepts are introduced concretely in the early years and revisited at higher levels of abstraction. It separates core skills (targeted for mastery by 85–90% of children) from inspirational content that is not expected to be mastered.
Structure matters more as children get older. A 2024 research summary from the Georgia Family Connection Partnership reviews why some pre-K gains fade in primary school. One factor it points to is a shift from hands-on learning towards teacher-led, large-group instruction. Its recommendations include focusing on language, executive function and social skills rather than rote skills, and aligning pre-K quality with early primary.
Many systems still split the early years. Europe’s 2025 Key Data report finds that all European systems now issue official curriculum guidelines for early childhood. But in a quarter of them, curricula only cover children aged three and over, with care and education split by age.
Play still works at the classroom level. A 2025 action-research study in an Iowa preschool found that structured, intentional play raised engagement and peer interaction over just two weeks, especially for children who had struggled to participate. It was a small study, but it adds classroom-level support to the policy findings.
Source: Eurydice, Key Data on Early Childhood Education and Care in Europe, 2025
The graph shows that approximately 75% of European education systems have curriculum guidelines covering the whole early childhood education and care (ECEC) phase, while about 25% provide guidelines only for older children. This highlights the importance of curriculum continuity, where learning is planned as a connected developmental journey across the early years rather than as separate age-based stages.
Three Decisions That Shape the Whole Programme
1. Define the endpoint before writing Year 1. Ask what a child leaving at around age six should be able to do across language, maths, inquiry, social-emotional skills, creativity and physical development. Every year is then a step towards that picture. Without it, Year 3 tends to become whatever the local primary school seems to want.
2. Give each year a distinct job. The three years should not be the same programme repeated with harder worksheets. Each needs its own developmental focus and its own balance of play and guidance.
3. Decide what spirals and what doesn’t. Some things should return every year at greater depth: oral language, number sense, emotional vocabulary and inquiry. Others may appear once. The spiral should be designed deliberately, not left to chance.
Here is one way to picture the three years working together:
| Year (approx. age) | Main job | Balance of play | What children carry forward | Warning sign |
| Year 1 (3–4) | Belonging, security, language, sensory exploration | Mostly child-led and guided play, strong routines | Confidence, early vocabulary, trust in adults | Formal seated tasks appear too early |
| Year 2 (4–5) | Inquiry, early skills, working with others | Guided play plus short teacher-led moments | Curiosity, early phonics and number sense, cooperation | Year 2 is just Year 1 with more worksheets |
| Year 3 (5–6) | Applying skills, reasoning, independence, readiness for primary | Structured play, projects, some explicit teaching | Independence, early reading and maths, self-regulation | Play disappears in the name of “school readiness” |
Singapore’s NEL framework describes this movement as a continuum of purposeful play, from child-directed through co-directed to teacher-directed. It encourages teachers to move along that continuum depending on what the learning needs. Over three years, the balance shifts. It should not flip completely.
The Year 3 Trap
Year 3 is where many programmes lose their shape. Pressure from families and primary schools pushes the final year towards drills, long seated sessions and pages of practice. It feels like preparation. The evidence suggests it may be the opposite.
The Georgia review notes that fade-out in pre-K gains may be linked to that exact shift away from hands-on learning. So the question for curriculum leaders is:
If Year 3 looks more like Grade 1 than like the two years before it, what is it actually preparing children for?
A stronger Year 3 raises the level of thinking without dropping the ways young children learn. Projects get longer. Questions get harder. Children explain their reasoning. Play stays, and it gets more purposeful.
Plan the Transitions at Both Ends
A three-year programme has two edges, and both need design. At the start, children arrive from home or from infant and toddler settings with very different experiences. Singapore handles this with two linked frameworks: one for birth to three and one for ages four to six. It asks educators to use both so learning feels continuous.
At the end, the goal is a handover. What will Grade 1 teachers know about each child? Which developmental progress[Blog 3.1] evidence travels with them? A programme that ends with a strong portfolio and a shared language with the primary school is structured for the child, not just for the calendar.
Where KODEIT Pre-K Fits
KODEIT Pre-K is built as three connected levels, each with a clear job. The table below shows how each level is framed in the curriculum overview:
| Level | Stage name | Key learning approaches |
| Level 1 (ages 3–4) | Exploration & Early Foundations | Play-based exploration, sensory learning, music and movement, storytelling |
| Level 2 (ages 4–5) | Building Understanding & Inquiry | Inquiry-based learning, hands-on exploration, dramatic play, cross-curricular integration |
| Level 3 (ages 5–6) | Preparation for Primary Learning | Critical thinking, collaborative learning, structured play, real-world application |
The catalogue describes the progression through three shifts:
- from concrete to representational to early abstract thinking
- from oral language to print and writing
- from noticing to reasoning to explaining
The scope and sequence maps seven domains across all three levels on a spiral model, so language, maths, inquiry, social-emotional learning, creative arts, physical development and digital awareness each return with more depth every year. Level 3 still keeps structured play as a core approach, which directly addresses the Year 3 trap described above.
One Programme, Three Chapters
A three-year preschool is not three separate products. It is one story told in three chapters, and each chapter only makes sense because of the one before it. The most useful test for any curriculum team is simple: can a Level 3 teacher explain exactly what a child learned in Level 1, and why it matters now? If not, the structure is not there yet, however good each year looks on its own.
Frequently Asked Questions
Q: Should a three-year preschool programme use mixed-age or single-age classes?
A: Both can work. Montessori uses a three-year mixed-age cycle where children revisit skills over time. Single-age programmes need a written scope and sequence to create the same continuity. What matters is that progression is planned, not the grouping itself.
Q: When should formal reading and writing start?
A: Frameworks like Singapore’s NEL set early reading and writing goals for the end of preschool, built on listening, speaking and fine motor readiness. The foundations run through all three years. More explicit teaching usually belongs in the final year, delivered through play and meaningful contexts rather than drills.
Q: How different should Year 3 be from Year 1?
A: Different in depth, independence and reasoning, but not in how children learn. Play, hands-on work and conversation should continue. Research on pre-K fade-out suggests that replacing them with teacher-led instruction may weaken long-term gains.
Q: What should be written down to hold the structure together?
A: At minimum: the endpoint goals, a scope and sequence across the three years, the job of each year and a plan for aligning assessment with learning objectives[Blog 5.1]. Without these, each year tends to drift on its own.
Q: Can the same themes appear in all three years?
A: Yes, if they return at greater depth each time. This is a spiral, not a repeat. See how to choose themes for an early years [Blog 32] curriculum for how to tell the difference.