Kathi has been teaching at St. Mark's for 14+ years. She grew up in Park Ridge & attended Maine South High School. Kathi graduated from the University of Wisconsin Madison & earned her Master's Degree in Early Childhood Education from National Louis University. She has four children all graduates from BHS & enjoys skiing with all of them! 

Sara has been teaching at St. Mark's for five years, but her adventure here began as a parent & later as a substitute teacher. We just couldn't let her go! Sara has BA in Marketing & Advertising from Columbia University, & an MA in Integrated Marketing Communications, so she is well-versed in helping families from both the classroom & office at St. Mark's. She is well-qualified with early childhood certification from DCFS. Sara embraces the philosophy of St. Mark's as she supports children in their journey to learn, explore, & discover through play, music, art, and lots of movement! Outside of school, Sara enjoys spending time with her family & attending her son's hockey games!

Lisa loves getting to help kids discover the joy of learning-especially through math & science, two of her favorite subjects. She started teaching almost 20 years ago as a preschool teacher in Flower Mound, Texas, & over the years taught everything from kindergarten to middle school. She has also led math & science camps & has done lots of tutoring along the way. No matter the age or subject, her goal is always the same: help students stay curious & excited to learn. She earned her BA in Child Psychology from Hollins University in Virginia, then came back to Texas for a Master's in Social Work from UT Arlington. She worked as a medical social worker in Dallas, then stayed home with her four daughters for nearly nine years. Later, she went back to school (again!) & earned her Master's in Teaching Mathematics from Texas Woman's University, & that's when her full-time teaching journey began! Outside of school, Lisa loves spending time with her husband of 30 years, Dan & their 4 daughters (27, 25, 22, & 21) who are all BIG fans of water polo!

Meg has been sharing her passion for education with children for over 16+ years. Meg has a B.A. in Elementary Education from Michigan State University (GO GREEN!) & joined St. Mark's in 2020. Meg is a caring, compassionate teacher who meets each child where they are at. Not only is Meg a nurturing teacher, but her love for her preschool students is so evident in the way she leads with patience, kindness, & warmth. Outside of school, Meg enjoys traveling, gardening, & spending time with her three children & seven grandchildren. Meg & her husband of 40 years, Mark, live in North Barrington with their two dogs, Ollie & Shuggie. 

Together, we-Kathi Slatter, Sara Morrell, & Lindsay Miller-will be working collaboratively to ensure that every aspect of the Day School flourishes. Each of us brings unique experience, a shared love for early childhood education, & a deep commitment to the mission of St. Mark's.

Kathi Slatter - Leadership Team (Director)
After sixteen wonderful years teaching at St. Mark's & 4 magical years as a St. Mark’s parent, I'm honored to step into this new role while continuing to guide our curious, joyful three-year-olds in the classroom. With a Masters degree in Early Childhood Education & qualifications for a Preschool Director, I will be focusing on staffing & parent communication. St. Mark's is truly a second home to me, & I'm excited to serve the school in this new capacity while staying close to the children who inspire me every day!

Sara Morrell - Leadership Team (Day to Day Operations)
St. Mark's has been my teaching home for the past seven years. Prior to those years, I was a St. Mark's parent for 2 years. It has been a joy to grow alongside our students & programs-especially through the development of our after-school enrichment offerings.  Within our Leadership Team, I will be supporting the day-to-day operations of the school office while continuing to teach.My heart is in the classroom, & I am grateful to be able to blend that passion with the opportunity to help lead our community forward!

Lindsay Miller - Leadership Team (Community Engagement)
As both a parent & former teacher (& former student when I was 3 years old!!) at St. Mark's, this school & community holds a very special place in my life/heart. I currently love being a stay at home mom to my two boys, as I recently took time away from St. Mark's to welcome my second child in Dec. 2024. I hold a Master's Degree (M.Ed) with my major being in Early Education & my minor being in Curriculum & Instruction. My BA from DePaul University is in Relational Communication with a focus in early childhood. Within our Leadership Team, I will be focusing on Community Engagement & Outreach. Helping connect our wonderful school to families in the surrounding area & manage our social media presence to keep our community informed & inspired! You'll most likely see me bopping around St. Mark's taking pictures for our social media platforms, while strolling my 8 month old around & dropping/picking up my 4 year old in the pre-k room!

We are all deeply committed to the values & vision of St. Mark's. As always, our doors & inboxes are open. We look forward to working closely with each of you to ensure that every child & family feels known, supported, & celebrated here at St. Mark's!

With gratitude & enthusiasm,
Kathi Slatter (kslatter@mydayschool.org)
Sara Morrell (smorrell@mydayschool.org)
Lindsay Miller (lmiller@mydayschool.org)
The St. Mark's Day School Leadership Team

Ms. Carol has been encouraging & developing preschooler's natural love of music & movement in the Chicago area since 1998. Children enjoy learning basic music skills & exercise their fine/gross motor skills in her classes. Students also practice self expression & social skills, as they engage with Ms. Carol's guitar & age appropriate props/instruments, & different styles of music! Carol & her husband are empty nesters now & enjoy 'glamping' as much as possible!