Why Curriculum Alone Isn’t Enough to Improve Retention or Child Outcomes

Summary of Insights

To sustain a program’s investment in research-based curriculum solutions, teachers need ongoing support from a comprehensive system of professional development and coaching. Coaching, in particular, has a strong impact on program fidelity by providing teachers with support through the whole implementation process and the daily duties that make it challenging to establish new practices. A support system helps ensure that a curriculum produces better outcomes and positive experiences for children.

• Ongoing coaching helps teachers implement curriculum and assessment solutions with confidence and consistency.
• Sustainable fidelity is built through long-term mentoring relationships, not just one-time training sessions.
• When teachers are supported through curriculum, professional development, and coaching together, programs—and children—benefit from changes that stick.
• Research from the NIEER study on The Creative Curriculum shows that aligned systems that include coaching and professional development improve teacher retention, educator well-being, classroom quality, and child outcomes.

A Great Curriculum Won’t Fix Outcomes on Its Own: Here’s What’s Missing

If you’ve worked in early childhood education long enough, you’ve probably seen this happen: a program invests in a strong curriculum, teachers attend professional development, and everyone leaves energized and hopeful about what implementation could look like. And then reality sets in.

Teachers return to classrooms filled with competing priorities, changing needs, staffing challenges, and the very real demands of working with young children every day. Even with the best intentions, implementation can start to feel inconsistent or overwhelming over time.

Teachers need support in all aspects of their work. They need the right tools and curriculum, meaningful professional development, and ongoing coaching that helps them apply what they’re learning in ways that feel achievable and sustainable.

The Real Challenge Is Supporting Implementation

Most leaders today understand the importance of investing in research-based curriculum and professional development. Those investments matter, and they absolutely make a difference. But implementation science reminds us that adoption is only the beginning.

The real challenge happens after rollout, when teachers are trying to translate new learning into daily classroom practice while balancing the everyday responsibilities of their role. Even the strongest professional development has limits without ongoing opportunities to reflect, ask questions, refine practice, and receive support over time.

In sports, even elite athletes with talent, skill, and deep knowledge of the game still rely on coaching. They need someone helping them strengthen execution, adjust strategy, and continue growing over time. Early childhood educators deserve that same kind of support, because a whole-child approach to teaching is complex work, and growth happens through reflection, feedback, and practice.

Curriculum, Professional Development, and Coaching Work Best Together

Sometimes these conversations get framed as curriculum versus coaching or professional development versus implementation support. But in reality, strong outcomes come from how those pieces work together.

Curriculum provides direction and shared goals. Professional development helps educators build knowledge, strengthen practice, and deepen understanding over time. Coaching helps teachers apply both in ways that are responsive, intentional, and sustainable in real classrooms.

When one of those pieces is missing, sustaining implementation is more difficult.

We’ve all seen classrooms where materials are available, but instructional practices vary widely, or where assessment data is collected consistently, but teachers aren’t always sure how to use it to guide instruction in meaningful ways. That isn’t a reflection of educators not trying hard enough. More often, it reflects systems that expect implementation without building the support structures needed to sustain it. Over time, that can take a toll on educators themselves.

What the NIEER Study Reinforces

Recent findings from a study conducted by the National Institute for Early Education Research (NIEER) reinforce something many leaders and coaches have observed firsthand for years: educators are more successful when they are supported through connected systems.

The study examined the implementation of The Creative Curriculum within a broader ecosystem that included aligned professional development, ongoing coaching, additional professional development supports, and assessment practices designed to work together.

The findings were significant: programs that combined curriculum, professional development, and ongoing coaching saw a 59% increase in teacher retention across participating schools and child care centers. Children in those classrooms also demonstrated stronger growth across every developmental domain measured, including social–emotional, language, and cognitive development and mathematics and literacy learning.

That’s important because the results weren’t tied to curriculum alone. They reflected what happened when educators had access to strong instructional tools and sustained support while implementing them.

Coaching Helps Implementation Become Sustainable

One of the biggest misconceptions about coaching is that it’s an “extra.” In reality, coaching is often what helps all the other investments become sustainable.

It’s what helps teachers move from initial exposure to confident implementation. It creates space for reflection, problem-solving, and growth in the middle of real classroom challenges, not just during professional development sessions.

And, perhaps most importantly, coaching reminds educators that they are not expected to figure everything out alone.

That matters more than we sometimes realize.

When implementation starts to feel like compliance instead of support, educators feel it. But, when coaching is embedded into the ecosystem, implementation becomes more collaborative, reflective, and achievable.

Supporting Educators and Improving Outcomes Go Hand in Hand

Sometimes conversations about instructional quality and educator well-being get separated, as though they are competing priorities. But they’re deeply connected.

Teachers are more likely to stay, grow, and thrive in environments where they feel supported, valued, and capable of success. And children benefit when educators have the time, tools, relationships, and guidance needed to implement curriculum with confidence and intentionality.

That’s why leaders who are focused on long-term impact are increasingly thinking beyond one-time solutions. They’re thinking about supporting systems.

At the end of the day, strong outcomes for children and positive experiences for educators are deeply connected. When teachers have access to strong curriculum, meaningful professional development, and supportive coaching along the way, implementation becomes more sustainable, classrooms become more intentional, and the work feels more achievable for everyone involved.