Early Childhood Guides

Early Childhood Northwest

Lynnah Hall

Mrs. Lynnah is a graduate of Bishop Kelley High School and Southern Nazarene University and has her minor in Early Childhood Education and her Bachelors in Family Services and Gerontology. Lynnah began her relationship with Undercroft in 1990 at the age of four. During her high school years, she worked for Undercroft’s after care program and ‘fell in love’ with the method and the children and decided to pursue a career in Montessori education. She attended the Montessori Education Center of the Rockies in Boulder, Colorado, in 2006.

Kalee Brightmire

Kalee began her journey to becoming a guide as a Montessori student herself. She attended Undercroft from the early childhood program through 8th grade graduation. She then attended Bishop Kelley High School followed by the University of Oklahoma where she obtained her bachelor's degree in Journalism with a minor in Spanish. While doing freelance work, she decided to substitute teach in a public elementary school. She was offered and took a permanent position with that school, after deciding working with children was her calling. After working in a public school setting, Kalee realized she wanted to e a part of an educational environment that follows the Montessori methods and philosophy that were so meaningful to her. She is currently in the process of obtaining her Montessori early childhood certification through the Center for Guided Montessori Studies.

Early Childhood Northeast

Maiko Kasparek

Mrs. Maiko is originally from Japan and came to the United States at age 19 with a desire to learn about other cultures. After receiving her Bachelor of Arts and Montessori Certification in 2001 from Oklahoma City University, she joined Undercroft as an early childhood guide in 2001.

NaTasha Guerra

NaTasha has her Bachelor's degree in Early Childhood Education from the University of Oklahoma, and an Oklahoma teaching certificate in ages birth through 3rd grade. She has been teaching since 2008 and found Montessori in 2017. From there, she began her Montessori studies with the Center for Montessori Guided Studies and received her Montessori certification in 2019. She has been married to her partner since 2004 and has 3 wonderfully unique children. In her free time, she enjoys gardening, sewing, reading, learning about different customs and cultures, and spending time with nature.

Early Childhood Southeast

Terriann VanDeventer

Terriann graduated from the University of Central Oklahoma in 1996 with a degree in Early Childhood Education and taught Pre-Kindergarten and Kindergarten in private and public schools in Dallas, Texas. She came to Undercroft in 2006 as a prospective parent, looking for an alternative to traditional education for her son. Terriann admits she knew very little about the Montessori method and was hesitant, but says the 30 minute classroom observation changed their lives and her career. Her son began his Kindergarten year that fall and their daughter began her first year of early childhood in 2007. Ms. Terriann began working at Undercroft in 2007 and, in 2009, completed her early childhood guide certification.

Sean Clouser

Sean grew up in Tulsa and graduated from Oklahoma State University with a degree in Psychology. He pursued additional education in Chicago, where he met his wife, Kristin. After starting a family, Sean and his wife decided they wanted to raise their children in Tulsa and moved here in 2019. While researching early childhood programs for their children, Sean observed a Montessori classroom and was impressed by how focused the children were on their work. He has since worked with children in both a toddler and early childhood Montessori environment. Sean is currently pursuing his Early Childhood certification.

Early Childhood Southwest

Mia Gutierrez

Ms. Mia is a graduate of Bishop Kelley High School and the University of Tulsa and has a Bachelor of Arts degree in Elementary Education. She came to Undercroft in 1998 and worked in the nap room and after care program for 2 years before becoming an early childhood assistant in 2000. She received her early childhood training at the Houston Montessori Center in 2002 and has worked at Undercroft as an early childhood guide since 2003.

Shiloh Oliver

Shiloh Oliver holds a Bachelor’s degree in Psychology. She started at Undercroft in 2003 as an Early Childhood Assistant. After 3 years as an assistant, she received her certification from the Montessori Education Center of the Rockies in Boulder, Colorado. Shiloh made the transition to Lower Elementary in 2009 and pursued her teaching credentials for the 6-9 level. In 2012 Mrs. Oliver’s husband, Jeff, took a job relocation and the family moved to Pittsburgh, Pennsylvania. Three years later the family moved again to Denver, Colorado. Life finally brought her back to Undercroft in 2017. She has taught at the Early Childhood and Lower Elementary levels in three different Montessori schools across the country. Shiloh and Jeff have an amazing daughter, Raden, who also attends Undercroft. When she is not at school, Shiloh and her family enjoy kayaking, hiking, and hanging out with their cats.