Our Staff
Director

What does she love most about the Co-op?
Assistant Director
Over twenty years ago, Mrs. LeMasurier signed her oldest son up for the two-day program at the Co-op. She has never left and cannot get enough of the Co-op.
She started as a parent and soon held the board position of Repair and Maintenance; she then moved up to Vice President of Fundraising and lastly, she became President.
When a teaching position opened up in 2005, Mrs. LeMasurier resigned as president to pursue her passion of teaching! Mrs. LeMasurier holds an associate’s degree and enjoys continuing her education by taking classes in Early Education & administration. She feels that you can never stop learning.
Mrs. LeMasurier is always on the lookout for a fun and exciting science experiment. She loves seeing the childrens faces light up during the experiments. Instilling a good educational foundation and love of learning is Mrs. LeMasurier ultimate goal.
Mrs. LeMasurier splits her time between the classroom and administration. Booking field trips, and special events, supporting the Board of Directors, teachers and staff are just a few of her responsibilities.
What is her favorite thing about the Co-op?
“The wonderful sight of seeing a child figure something out for themselves. The light bulb goes off and it’s all through developmental learning!”
5 – Day Lead Teacher
Lynn Piecewicz or Mrs. P. as she is referred to by her students, is returning for her seventh year teaching here at the Coop. Lynn has a Bachelor’s degree in Psychology and minored in Early Childhood Education. Prior to her coming to the Coop Lynn taught for many years at three other schools.
Lynn has lived in N. Chelmsford for about 22 years, and is the proud mother of two wonderful young women. Lynn’s older daughter, Jessica is married and just bought a home in Framingham. Her younger daughter Ashley is a graduate from the University of New Haven in CT. She works as a Pre-School teacher in Acton and will be pursuing her Masters in Education.
4 Day Lead Teacher

5 – Day Teacher
It has been 13 years since Mrs. Holden enrolled her son Hunter in the 3 day program here at the Co-op. The following 2 years her daughter Maggie also attended our 3 day program during which time she served on the Board as Vice President of Fundraising. Not long after followed her youngest sons, Beckett and Wyatt, also attending the 3 day program.
She loves the philosophy and atmosphere of our school so much that when a position opened up in August 2015 for Assistant Teacher she jumped at it! This year Mrs. Holden is a 3 day Teacher and 2 day Asst. Teacher. She loves nothing more than seeing the curious minds of her students become more confident every day! There is magic in the light that shines in the eyes of a student when exploring and learning.
Mrs. Holden continues to take courses and is always searching for something new and exciting to share with her students! There is always more to explore and learn!
Mrs. Holden has lived in Chelmsford her entire life where she resides with her husband Will and four children Hunter, Maggie, Beckett and Wyatt! Her children attend Center School, McCarthy Middle School and Chelmsford High School. You may see her on the soccer or baseball fields or on the dance circuit as her kiddos keep her on the run!
Assistant Teacher
Mrs. Krochune started teaching at the Co-op in 2016. She has a bachelors degree in Psychology and minored in Health Education at Elon University in North Carolina.
After working for many years in Boston, she chose to stay home with her 3 children – 2 of which attended The Co-op. She volunteered a great deal in her children’s various classrooms throughout the years and fell in love with The Co-op. When an assistant teaching position opened up, she jumped at the opportunity.
One of her favorite things about The Co-op is all the different learning opportunities the kids have here. From science lessons and hands on agricultural activities to gaining independence in writing and fostering their own creativeness, it is truly amazing to watch.
3 Day Teacher
Mrs. Grout started working at the Co-op in 2017. Working with children has encompassed most of her entire career since her high school days. She received an Associates degree from Middlesex Community College and went on to Lesley University where she received a B.S. in Human Development and Family Studies and Elementary Education. Being a bit undecided after graduation, she worked in the corporate world, participated in a traveling and teaching program as well as taught preschool. Kristi has been working in an elementary after school program in Lexington for many years. In her free time, she enjoys the outdoors, cooking, listening to music and spending time with family and friends. Mrs. Grout Co-Teaches Mrs. P on MWF
What is her favorite thing about the Co-op?
“My favorite thing about the Co-op is the warm and inviting feel you get when you enter. My favorite event is the Thanksgiving feast when all the classes get together.”
2 Day Teacher

Four Day Assistant Teacher
Tammy Arena Started with the Co-op in 2020 and has be instrumental in keeping the students safe and engaged.