NaTasha Guerra
NaTasha has her Bachelor's degree in Early Childhood Education and Development from the University of Oklahoma, and an Oklahoma state teaching certificate. She discovered Montessori in 2017 and completed her Montessori certification at The Center for Guided Studies in Early Childhood Education in 2019.
She has been teaching children since 2008 and works part-time teaching adult learners as an adjunct instructor in the Early Care and Education Department at Tulsa Tech. NaTasha will transition into teaching adolescents at Undercroft in the fall of 2024. Her dedication to education and human development prompted her to begin secondary Montessori education in 2024.
She has been married to her partner since 2004 and has 3 children, one of which just graduated high school. In her free time, she is an avid gardener, reader, seamstress, entomophile, chicken tamer, and information seeker.
Donna Vandiver
Donna Vandiver joined the Undercroft middle school team in 2012, bringing over 20 years of teaching experience in both formal and informal education. She holds a Bachelor’s of Science in Middle School Education from the University of Missouri, a Master’s of Science in Human Resource Administration from Southeast Missouri State University, and a Master’s of Science in Library and Media Education from Portland State University. Donna currently holds a lifetime Missouri state teaching license. Donna received her Montessori Secondary I & II certification in December 2014 from CMStep in Cincinnati Ohio. Donna and her husband moved to Tulsa when he accepted the position of Executive Director/CEO of the Tulsa Children’s Museum – Discovery Lab. In Portland, he was the VP of Exhibits at the Oregon Museum of Science and industry. They have one son who attended Oregon State University and works for Denso Corporation as a Mechanical Design Engineer. Donna is excited to be part of the Undercroft community and looks forward to many more years of learning and working with the UMS middle school students and program.
Ashley Dignan
Ashley Dignan brings 7 years of public school teaching experience, as well as community college teaching experience to the UMS middle school classroom. She has a Master's degree in Natural Science from Northeastern State University and a NASA Endeavor Distinguished Educator certificate. She holds an Oklahoma state teaching license.
Ashley's husband drives hazmat chemicals and they have three children. Ashley started her Montessori Secondary Certification training in 2024 and is excited to learn and grow at Undercroft for many years to come.