Preschool Staff

Our teachers have many gifts, but the best quality our teachers have is that they love each and every child as their own. Our experienced staff has an average of 13 years at our preschool. Each teacher is certified in CPR and First Aid, completed background checks, and receives continuing education annually.

Mrs. Tasha: Preschool Director

Tasha Harrell has been part of the Covenant Presbyterian Preschool family since 2022. During her time here, she has served both as an aide and as a lead teacher in the nursery classroom. In 2025, Mrs. Tasha was excited to step into a leadership role as the Director of Education, where she continues to support both students and staff in creating a nurturing and engaging learning environment.

Mrs. Tasha recently completed her Bachelor’s degree in Child Studies and has a deep passion for early childhood education. She is dedicated to fostering the growth and development of each child, celebrating their milestones, and encouraging their natural curiosity through meaningful learning experiences.

Outside of the classroom, Tasha enjoys expressing her creativity through her small business, where she designs and creates custom t-shirts, cups, and other personalized items. From baby onesies to unique coffee mugs, she loves helping people celebrate life’s special moments with thoughtful, custom designs.

Tasha and her husband, Roy, stay busy raising their five children and caring for their lively household that includes seven chickens, three dogs, a rabbit, and a cat. She is also a proud sports mom, with kids involved in football, soccer, and gymnastics, so you will often find her cheering them on from the sidelines.

Tasha believes strongly in the power of education to shape young lives and in encouraging others to pursue their passions. Covenant Presbyterian Preschool is grateful for the dedication, creativity, and leadership she brings to our program.

Mrs. Brooke: Assistant Director and Lead Nursery Teacher

Brooke Ward brings more than 10 years of experience working with youth and is a compassionate and dedicated infant teacher in our nursery room. She is committed to providing a nurturing and stimulating environment for our youngest learners. With a strong passion for early childhood development, Brooke creates a safe, supportive space where infants and toddlers can grow, explore, and thrive.

During this school year, Brooke stepped into the role of Assistant Director and has already made a positive impact on our school community. Her leadership, organization, and heart for children and families help strengthen the program and support both staff and students each day.

Outside of the classroom, Brooke is a loving wife and mother who values time with her family. She is also continuing her education at Grayson College, where she is pursuing a degree in Child Development. Brooke’s ability to balance her roles as a teacher, leader, wife, mother, and student reflects her strong work ethic and her commitment to both personal and professional growth.

Ms. Talon: Infant Room Teacher

Talon is a dedicated Infant Room teacher with four years of experience in early childhood care. She has a true passion for watching children learn and grow and loves being a part of their early educational journey. Talon creates a warm, nurturing environment where our youngest learners feel safe, loved, and encouraged to explore.

It is not uncommon to find Talon sitting right on the floor in the infant room while the babies climb, play, and happily soak up all the love and attention she gives them. Her gentle, patient approach helps build strong bonds with each child in her care.

Outside of the classroom, Talon is a proud mother to two wonderful daughters. When she isn’t teaching, she enjoys spending time with her family, reading, and a little shopping.

Ms. Alexis: Toddler Room Teacher

Ms. Alexis joined Covenant Presbyterian Preschool this year, and we are thrilled to have her on our team. She brings a wonderful, positive energy to the classroom and quickly builds meaningful connections with the children in her care. Alexis is known for her patience, kindness, and genuine love for working with young learners, helping create a warm and encouraging environment where children feel safe and supported.

Alexis is currently enrolled at Grayson College, pursuing her Child Development Associate (CDA) credential. Her dedication to continuing her education reflects her commitment to growing as an early childhood educator and providing the best possible care and learning experiences for children.

Before joining our preschool, Alexis taught cheer and gymnastics to young students, gaining valuable experience working with children while fostering confidence, teamwork, and physical activity.

In her free time, Alexis enjoys helping her sisters prepare for and compete in cheer competitions. She also loves spending time with her boyfriend and her dog, making the most of time with the people (and pup!) she loves.

Mrs. Kim: Toddler Room Teacher

Mrs. Kim is new to the field of early childhood education and is excited to learn and grow as part of the Covenant Presbyterian Preschool team. She brings a positive attitude and a willingness to learn, along with a genuine desire to support and care for young children.

She especially enjoys creating cozy, sensory-rich spaces where toddlers feel comfortable exploring and discovering. With a naturally artistic side, Mrs. Kim loves designing engaging classroom environments and hands-on activities that spark creativity, curiosity, and play.

Outside of the classroom, Mrs. Kim enjoys spending time with her husband and son, along with their dogs. Whether at home or at school, she values creating warm, joyful spaces where everyone feels welcome.

Mrs. Robbin: 2-Year-Old Teacher

Robbin Rankin is a passionate and dedicated early childhood educator who has specialized in teaching two-year-olds for more than 25 years. With a nurturing spirit and a wealth of experience, Robbin creates a warm and engaging classroom environment where toddlers feel safe, loved, and encouraged to explore the world around them.

Throughout her years in early childhood education, Robbin has developed a deep understanding of child development and the unique needs of young learners. She approaches her classroom with patience, empathy, and creativity, designing hands-on activities that encourage curiosity, social interaction, and language development. Her goal is to help each child grow in confidence while building a strong foundation for future learning.

At Covenant Presbyterian Preschool, Robbin is known for her caring heart and her ability to connect with both children and families. Her dedication to nurturing young learners helps create a classroom where two-year-olds can flourish and discover the joy of learning.

Outside of school, Robbin is a devoted wife, mother, and grandmother. She married the love of her life 34 years ago and enjoys spending time with her family whenever she can. In her free time, Robbin loves traveling, hiking, and spending time outdoors.

Ms. Marie: 2-Year-Old Assistant Teacher

Marie Schillerwein is a seasoned professional with over 10 years of experience working with children. Specializing as a teacher’s aide in our two-year-old classroom, she brings a wealth of knowledge and expertise to her role. In addition to her duties as a teacher’s aide, Marie is also the culinary specialist for our preschool-aged children, emphasizing the importance of healthy eating habits and sensory experiences in early childhood development.

Marie is dedicated to providing a nurturing and stimulating environment where toddlers can learn and grow. Her experience and creativity allow her to assist the lead teacher in developing engaging and age-appropriate activities for the children in her care. Outside of her professional life, Marie enjoys exploring new recipes and spending time outdoors with her wonderful dog “Whiskey Girl”, horseback riding and hiking. She has also received many awards through the American Heart Association. Her passion for working with young children shines through in her commitment to their well-being and education.

Mrs. Misty: Lead Teacher of 3 Year Olds

Misty is a loving Mother, Grandmother, Aunt, Sister, Wife, Teacher and best of all Women of God. The most amazing part about her is that in her spare time she works at Covenant Presbyterian Preschool in Sherman Texas (our preschool) as a substitute. Misty is a kind-hearted and nurturing substitute teacher known for her compassionate approach to education. With a warm smile and a genuine love for children, Misty creates a welcoming atmosphere where students feel valued, supported, and inspired to learn. Misty’s driven passion for making a difference in the lives of young learners is undeniable. Her journey as a substitute teacher began with a desire to bring joy and positivity to classrooms, even in the absence of regular instructors.

Ms. Tayler: Assistant Teacher of 3-Year-Olds

Early childhood educators play a vital role in shaping young minds, and at Covenant, Mrs. Tayler has seamlessly become an integral part of our community. With a strong background in childcare and early childhood development, she brings dedication, warmth, and a nurturing approach to her students. As a devoted mother of three boys, Mrs. Tayler understands the unique needs of three-year-olds and incorporates empathy and patience into her teaching.

Assisting Mrs. Misty in the 3s class, she helps create engaging, age-appropriate activities that promote individualized learning and social development, ensuring each child feels valued and encouraged.

Outside the classroom, Mrs. Tayler enjoys photography, music, football, and the outdoors. You can often find her on the sidelines cheering loud and proud for her boys during whichever sport season is in full swing. Her hobbies and experiences enrich her teaching, bringing creativity, teamwork, and a sense of adventure into every lesson.

Ms. Maggie: 4/5 Year Olds Teacher

Ms. Maggie became apart of Covenant Presbyterian Preschool after volunteering with Covenant Summer Camp in 2021. She has earned an Associate Degree in Sociology, a Bachelor’s Degree in Rehabilitation Studies and a Master’s Degree in Rehabilitation Counseling. Throughout Ms. Maggie’s time in high school and college, she has spent many hours volunteering in schools, as well as, being a mentor to many school-age children. One of her greatest inspirations is her mother, who has taught school for thirty plus years in the local school district. She enjoys spending time with family and friends, watching the Dallas Cowboys, SEC Football, and watching the Hallmark Channel. Ms. Maggie is truly a blessing to our amazing Covenant Presbyterian Preschool Team.

Ms. Maggie believes that “No task is too hard and no dream is too big.”

Ms. Tamie: Teacher’s Aide of 4/5 Year Olds

Tamie McCulley dedicated to her role as a pre-K aide teacher. With a nurturing spirit and a wealth of knowledge, she assists in creating a positive and engaging learning environment for young children. Tamie’s passion for education is evident in her interactions with her students, as she strives to support their growth and development.

Beyond her professional endeavors, Tamie is a wonderful grandmother, bringing warmth and love to her family. Her experience as a grandparent enhances her understanding of the unique needs and joys of childhood, further enriching her work with young learners. Tamie’s commitment to both her role as an educator and her family life demonstrates her dedication to fostering a bright future for the next generation.

Mrs. JoAnn: Teacher’s Aide/Bookkeeper

Joann Stegman is a dedicated educator and meticulous bookkeeper who has devoted over 32 years of her life to serving her Covenant Presbyterian Preschool community in both roles. With a passion for both numbers and nurturing young minds, Joann has made a significant impact on the lives of countless students and colleagues throughout her career.

Joann’s journey in education began over three decades ago when she discovered her love for teaching and her talent for managing finances. Combining her dual passions, she embarked on a career path that allowed her to make meaningful contributions both inside and outside the classroom.

As a teacher, Joann’s commitment to her students goes beyond the curriculum. She believes in creating a supportive and engaging learning environment where every child feels valued and encouraged to reach their full potential. Whether teaching mathematics or imparting valuable life lessons, Joann’s dedication to her students’ success is unwavering.

In addition to her teaching duties, Joann also serves as a trusted bookkeeper, meticulously managing the financial affairs of our school with precision and integrity. Her attention to detail and strong organizational skills have earned her the respect and admiration of her colleagues, who rely on her expertise to keep the school running smoothly.

Throughout her career, Joann has remained a constant source of inspiration and support for her students and colleagues alike. Her tireless dedication, kindness, and professionalism have left a legacy that extends far beyond the classroom.

As Joann reflects on her years of service, she remains grateful for the opportunity to make a difference in the lives of others and looks forward to continuing her journey of impact and growth in the years to come.