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Advancing early childhood professional development

Our future will be shaped by the support we provide for our children’s development today.

Whether you’re looking for new skills to boost your career, feel energized or investigate new possibilities, we can help. Our early childhood professional development trainings and events elevate the knowledge, skills, and abilities of the early childhood workforce and meet ever-changing industry requirements with competency-based professional development and technical assistance.


The tools you need to see, feel and be the positive difference in the lives of infants and toddlers.

At ZERO TO THREE, we believe meaningful impacts on the lives of infants, toddlers and their families are dependent on a strong early childhood workforce.

That’s why we are proud to offer a range a professional development services designed to meet your needs, wherever you are in your career. From face-to-face learning workshops and conferences, to live virtual events with leading professionals in the field, to virtual training curriculums and an extensive library of online resources, our goal is to equip you with the knowledge that changes practice and underpins quality care and education. 

Inspire your whole team to evolve, together.

Experience the power of quality practice together – with group training courses designed to challenge, inspire and support your team to implement your learning.

I looked at the baby in my arms and saw that he was looking right at me. He had always been looking at me. I suddenly realized that all the babies I had fed over the years were looking at me and that I had missed those opportunities. I felt so sorry to have missed those moments and vowed to never miss another. Thank you for creating this training that helped me to see this.

Learn from the Best

Get the latest from our experts in early childhood professional development.

We’ve been in your shoes; we know the work and the challenges because our expert faculty averages more than 20 years of experience in educating professionals and in direct service across all early childhood settings and disciplines—from state and national organizations and agencies, higher education, public and private early childhood organizations, early childhood education programs (classroom- and home-based, including Head Start/Early Head Start), as well as home visiting.

Sarah LeMoine

Sarah LeMoine

Sarah fearlessly leads our professional development innovations. She is a thought leader in early childhood professional development committed to innovation, social justice, and a comprehensive PD approach. She is passionate about working across early childhood disciplines and removing barriers for the workforce, and hopes to be as wise and as empathetic as her daughter someday.

Noelle Hause

Noelle Hause

Noelle leads our DC:0-5 and Infant and Early Childhood Mental Health (IECMH) professional development offerings.  Noelle is passionate about identifying opportunities for improving the capacity of caregivers, early childhood professionals, organizations, communities, and systems to provide quality mental health supports and early childhood education for infants and young children. 

Katrina Macasaet Headshot

Katrina Macasaet

Katrina leads our Critical Competencies and The Growing Brain professional development options. In addition to being a bilingual, cake-loving yoga instructor, she is an amazing listener – connecting to trainers, coaches, and educators in the field with compassion, honesty, and real-world solutions.

Kristen Greene Headshot

Kristen Greene

Kristen’s know-how assures our offerings are meaningful and impactful, from instructional design to implementation strategies and evaluation analysis.  In addition to raising two outstanding humans, her deep expertise has been honed through supporting children, families, and professionals in almost every early childhood role possible—special educator, program and state administrator, higher education faculty, consultant, and training and TA specialist.

A graphic promoting the ZERO TO THREE Conference for early childhood professionals.

Professional Development Resources

Don't miss our early childhood conference.

Join us for idea-sharing, actionable takeaways, new inspiration and old friends. Together, we will move the early childhood field forward.