"If education is protection to life, you will realize that it is necessary that education accompany life during its whole course."
- Maria Montessori







"If education is protection to life, you will realize that it is necessary that education accompany life during its whole course."
- Maria Montessori
Our Staff
Office

Leslie Greene
Head of School
Leslie joined MSC as a Primary lead teacher in 2011 and moved to administration as Assistant Head of School in 2016. In 2023, she stepped in as Interim Head of School before moving into permanent Head of School in December 2024. Leslie graduated from the University of South Carolina with a Bachelor’s degree in Experimental Psychology, Cognate in Child Psychology. She earned her 3-6 Montessori Primary Certification from the Center for Montessori Teacher Education in Raleigh, North Carolina and is completing her Montessori Administrators Certification through The Houston Montessori Center, TX. Leslie is also a level 250 certified yoga instructor for children and adults and enjoys spending time outdoors and with her family.

Sarah McCants
Admissions Coordinator
Sarah attended the University of South Carolina and Midlands Technical College for Psychology. She joined MSC in 2015 and has worked as a Primary Assistant Teacher, Extended-day Teacher, and Summer Program Coordinator and Counselor prior to joining the Administrative team in 2023 to oversee Admissions. Sarah is the proud parent of an MSC alum, Silas, who graduated from the Upper Elementary program in 2025. Before joining MSC, Sarah held positions as a professional Baker and Hydroponic Specialist. She is pursuing a certificate in American Sign Language from Midlands Technical College and is a Notary Public. Sarah loves to cook, bake, organize, and spend time with her family, which includes her three dogs, Birdie, Juniper, and LuAnn.

Brittney Marshall
Chief Financial Officer
Brittney graduated from Midlands Technical College with a degree in Business Management and the University of South Carolina with a degree in Organizational Leadership. She previously worked at USC for 10 years with positions in grant management, budget, human resources, and procurement. Brittney is certified in LEAD professional management, Title IX training, and PCI compliance, which she obtained from USC. She also holds a commercial drivers license and worked in transportation for over 12 years. Brittney joined the MSC Administrative team at MSC in 2023.

Virginia Postic
Administrative Assistant & School Photographer
Virginia graduated from University of South Carolina with a degree in Photojournalism and a minor in Media Arts. She worked as a stringer for the Associated Press for 20 years before becoming a full time freelance photographer. Virginia has been a photographer for MSC for several years and joined MSC’s administrative team in 2021. Virginia runs the school’s social media accounts, has facilitated DSS licensing, and gives a warm welcome to all of those that visit the front office in the morning.

Michael Drennan
Director of Development
Michael attended Colorado College where he received a BA majoring in Chemistry and a minor in Ancient World. He worked as a Financial Planner and Tax Preparer for over a decade before becoming a stay-at-home parent for his twin daughters, now MSC alum. During the eleven years the twins attended MSC, Michael served on the Board of Trustees for six years, five of which he was Chairperson of the Board. Michael joined MSC as Development Director in 2023 and is thrilled to continue to be part of the MSC community.
Primary

Sunshine Gallahar
Lead Teacher - Primary, Cypress
Sunshine has been serving in Montessori classrooms since 2012 and has worked at MSC since 2022. Her career began as a Montessori Assistant Teacher where she began her Infant/Toddler certification. After moving to Columbia and into public Montessori education, she created meaningful change at different schools, having created a mindfulness room and was deemed Classified Employee of the Year at Logan Elementary School. Sunshine began teaching at MSC in 2022, and she attained her Primary Certification from the Houston Montessori Center.

Siquan Snipe-West
Assistant Teacher - Primary, Cypress
Siquan was born and raised in Charleston, South Carolina. She graduated in 2019 with an Associate’s Degree in Education and completed her Bachelor’s in Interdisciplinary Studies in 2023. Siquan has worked in childcare for over five years and joined MSC in 2023 to work in the Primary Cypress Montessori classroom as an Assistant Teacher. Siquan aspires to complete her Montessori Teacher Certification in the future.

Tonisha Higgins
Lead Teacher - Primary, Elm
Tonisha Higgins joined MSC in 2023 and completed her Primary Montessori certification from the Center for Montessori Teacher Education in Huntersville, North Carolina. Before coming to MSC, she earned her Associate’s Degree in Early Childhood Education and taught as a Primary Montessori Assistant Teacher for sixteen years. In 2017, Tonisha obtained her Bachelor’s Degree in Educational Studies.

Janeta Radieva
Assistant Teacher - Primary, Elm
Janeta received her Bachelor’s Degree in Education and Master’s Degree in Pedagogy and Primary Education from the University of Sofia in her native country, Bulgaria. She holds nearly forty years of experience working with children, thirteen of which were spent as a Primary teacher in Bulgaria. After moving to the United States, her focus has been working with Primary-aged children. Janeta has spent over fifteen years teaching in Montessori schools and has worked at MSC since 2016. She is the proud mother of two daughters and has earned her title as “Baba”, or grandmother, to her two grandsons.

Corey Jungclaus
Lead Teacher - Primary, Poplar
Corey earned her Bachelor’s Degree in Social Science from the University of North Dakota. Since graduating in 2011, she has worked as a Montessori Assistant Teacher in multiple schools, a nanny, and a mother. She received her 230-hour yoga certification and loves to practice Ashtanga yoga. Corey began working at MSC in the capacity of Assistant Teacher in 2018, and she has led the Primary Poplar class since 2021. She completed her Primary AMI Teaching Certificate at the Montessori Institute of San Diego.

Tristin Flynn
Assistant Teacher - Primary, Poplar
Tristin graduated high school in 2021 and is a South Carolina native. She has worked as a camp counselor, babysitter, nanny, daycare teacher, and waitress before joining MSC as an Aftercare Teacher in 2022. Tristin quickly fell in love with the Montessori values and began to substitute at MSC often. She now serves as an Assistant Teacher in MSC’s Primary Poplar class and enjoys continuing her education about Montessori. Her goal is to become a Montessori lead teacher after furthering her education.

Vera Kirkwood
Aftercare & Summer Camp Program Director
Vera holds a Bachelor of Arts in Professional English from Claflin University. She also holds a Master’s Degree in Business Administration with a concentration in Human Resources from Strayer University. She served the South Carolina Education System for two years and retired from The South Carolina Department of Corrections after over 22 years of service. Vera joined the MSC community in 2018 and currently coordinates MSC’s Aftercare and Summer Camp Programs.

Micah Sherwood
Assistant Teacher - Upper Elementary, Oak
Micah joined MSC in 2024 and has worked with all age levels at MSC before moving into the Upper Elementary Classroom. Micah graduated from the University of South Carolina with a Bachelor’s Degree in Environmental Sciences. She is passionate about incorporating nature and sustainability into educational spaces. While Micah has served in a variety of educational settings, she has found a home at MSC where her focus on holistic learning, environmental education, and self sustainability can be cultivated.
Elementary

Misty Dickson
Lead Teacher - Lower Elementary, Magnolia
Misty has been teaching for over 30 years. She graduated from the University of South Carolina Honors College with a Bachelor’s degree in Elementary Education and returned to USC for a Master’s degree in Early Childhood Special Education. She taught traditional first and second grades in South Carolina and Indiana. In 2008, she started working at the Montessori School of Columbia where she was an Upper Elementary Assistant Teacher and a Primary teacher. In 2011, Misty completed her Montessori Elementary Certification at Seacoast Center for Education in New Hampshire. She has been a Lower Elementary Lead Teacher for over 14 years.

Sidney Little
Lead Teacher - Lower Elementary, Magnolia
Sidney graduated in 2013 from the University of South Carolina with a Bachelor’s Degree in Journalism and Mass Communication. In 2014, he joined the Montessori School of Columbia as a Primary extended day teacher. From 2015 to 2017, Sidney served as an MSC summer camp counselor, Upper Elementary Assistant and PE Teacher, and Lower Elementary Assistant Teacher. In 2017, Sidney began his Lower Elementary Teaching Certification with Montessori Elementary Teacher Training Collaborative located in Lexington, Massachusetts. He has served as a Lower Elementary Lead Teacher since then. Sidney has completed his Elementary I Certification and is currently pursuing his Elementary II Certification.

Michael Thigpen
Lead Teacher - Lower Elementary, Palmetto
Michael Thigpen earned his AMS Montessori Teacher Certification in Elementary I and II through Lander University, where he also earned an M.Ed. in Montessori Studies. Michael completed his Montessori Lower Elementary training in 2015 and his Upper Elementary training in 2019. He taught in the public school system for ten years before becoming a Montessori teacher. Michael joined the Montessori School of Columbia Elementary teaching team in 2016. Michael also enjoys bringing woodworking classes to our summer campers.

Erin Knox-Boyd
Lead Teacher - Upper Elementary, Oak
Erin is a graduate of MSC, having attended from age 3 to 12. She earned a Bachelor’s degree in Women’s and Gender Studies from the College of Charleston with minors in Studio Art and Latin. After graduating college, Erin moved to Portland, Oregon where she obtained her AMI Elementary Teaching certificate from Montessori Northwest. Erin has worked with all age levels of our school starting with the extended day program, then Lower Elementary, and now leads the Upper Elementary classroom. Erin began teaching at MSC in 2015.

Andrea Rayle
Lead Teacher - Lower Elementary, Palmetto
Andrea graduated from the University of South Carolina in 2016 with her Bachelor’s of Arts in Elementary Education. She attended Sandhills Montessori Institute in Swansea, South Carolina, where she received her Elementary I and II certifications. She has taught in both Lower and Upper Elementary classrooms in the public districts as well as at MSC. Andrea joined the MSC community in 2023. She has worked in both Upper Elementary and Lower Elementary and is pursuing her Montessori Secondary credential. Andrea also volunteers as a guide for MSC’s Yearbook Club.
Enrichments

Jessica Smith
Art Teacher
Jessica has her bachelor’s degree in Studio Art from Winthrop and has worked as an art teacher at The Hive Studio and Gallery, The Art and Play Therapy Center of SC, The Portrait Gallery, and Our Heritage Studio. Jessica is also a yoga instructor for people of all ages and abilities. She is certified in trauma yoga and is now a Yoga Alliance Continuing Education Provider. Jess describes herself as an artist, spouse, mother of two girls, and lover of nature. Jessica is a grandmother and a dog-mom, and she has worked at MSC in several capacities since 2013.

Gabbi Sousa
Physical Education Teacher
Gabbi Sousa is from Matthews, North Carolina and has worked at MSC since 2024. She is in her fourth year of studying Criminal Justice at the University of South Carolina. Gabbi is also a competitive bodybuilder in her free time. She has a passion for health, nutrition, and training. She loves all things involving fitness and teaching others how to be their healthiest, happiest selves and live up to their fullest potential.

Brittany Martin
Music Teacher
Brittany Martin is a passionate music educator and multi-genre performer who has sung around the world as a soloist and ensemble musician. Her work as a singer and music educator is driven by music’s power to connect us more deeply to others, the world around us, and ourselves. As a teacher of music, Brittany strives to unlock passionate creativity, kind confidence, and generous teamwork in all her students. Ms. Brittany graduated from the University of South Carolina in 2023 with a Master of Music in Voice Performance with an emphasis in Community Engagement. Brittany joined MSC in the summer of 2025.

Sarah Barnett
Spanish & Aftercare Teacher
Sarah fell in love with languages at an early age and has studied Spanish for more than ten years. She holds Bachelor’s degrees in Spanish Language and Peace and Conflict Studies from Guilford College, a Masters degree from American University, and AMI Primary Teacher certification from Southwest Institute for Montessori Studies. Sarah’s first experience with Montessori teaching was as an Assistant then Lead Teacher of an English immersion classroom in the Czech Republic. Sarah has been with MSC in capacities of Aftercare teacher and Spanish teacher and has been with the school since 2023.