Callie Glanzer: Callie has owned, operated and acted at the director of LTEC Bozeman since 2007 and is Partner of LTE Madbury. She is a certified Infant and Toddler Teacher from the North American Montessori Center.  Prior to owning LTEC Bozeman, Callie was the Head Teacher of the Twos Classroom.  Callie has an incredible vision and understands what is takes at the classroom level to make the program successful. With her passion and a great team, LTEC Bozeman is the premier school for infants and toddlers.

In addition to being a great leader, Callie is an athlete. Callie ran her first marathon in 2012 and she also enjoys hitting the slopes at Big Sky. Callie has a BA in Graphic Design from Montana State University. Callie has a daughter and they enjoy frequent trips to visit family in South Dakota.


Sarah Greenshields: Sarah serves as Owner and President of LTE Madbury. Sarah was first introduced to LTEC Bozeman as a parent in 2005. Both Greenshields children attended LTEC Bozeman from 6-weeks to 3-years. Although young, Sarah's children do remember how rich their educational experiences were at LTEC Bozeman. Sarah has served as the finance and operations consultant for LTEC Bozeman since 2005. In 2010, Sarah and her family relocated to New Hampshire to be near family. Sarah and Callie missed working together on a daily basis and decided that they needed to continue to spread the magic of Little Tree by opening another location.

Sarah is also a partner of The Natural Baby Company and GroVia - one of the country's largest and fastest growing cloth and biodegradable diaper companies. Prior to moving to New Hampshire, Sarah served as the COO. Sarah continues to work in the eco-space by working with Revolution Energy - New Hampshire's largest solar power owner. Sarah also continues to offer business consulting services in finance and operations. You can find Sarah and her family skiing and snowboarding in the winter, and stand-up paddle boarding in the summer. Sarah has degree in Business Management with a minor in Entrepreneurship from Montana State University.   


Bevin Smith: Bevin is the Director of LETC Madbury.  Since adolescence she has dreamed of becoming a teacher and making a difference in the lives of many children. Over the years she has had the opportunity to work with children ranging in age from birth to age eight in a variety of educational settings such as summer reading camps, public elementary schools and child development centers.  Her great passion for working with young children brought her to Keene State College where she earned a Bachelor of Science Degree in Early Childhood Education and Developmental Psychology in 2006.  She had the great privilege of completing her educational field work at KSC’s Child Development Center where she was mentored by an amazing, knowledgeable and highly professional staff of teachers in the field.  After completing her degree she began working fulltime at the Bright Horizons Timberland Children’s Center in Stratham, NH as an infant teacher, working closely with many families over seven years. In 2012 she enrolled at the North American Montessori Center where she earned her Montessori teaching accreditation for infants and toddlers (0-3). Most recently, Bevin's commitment to professional development has also earned her a NH teaching credential through the Human Services and Child Development Bureau as an Early Childhood Administrator, Level 1.

Bevin grew up on the NH Seacoast and has lived in Lee, NH with her husband and young son, Caleb. Bevin believes the depth of social, emotional, physical and cognitive development that infants and toddlers go through is incredibly fascinating and complex.  She believes that it is a critical time in a human’s life and is fundamental in shaping the person they will become in their childhood, adolescence and adulthood and should be honored and cherished by all those who are lucky enough to work with children.