Undercroft Montessori School is the first and only Montessori program in Oklahoma to be accredited by the American Montessori Society and AdvancED. Founded in 1964, Undercroft provides an authentic Montessori learning experience for students age 3 to 8th grade. This unique learning approach was developed over 100 years ago by Dr. Maria Montessori and incorporates specially-designed learning materials to illustrate a full spectrum of education concepts. This proven method results in an exceptional level of understanding and retention in students while instilling an authentic love and passion for learning that lasts a lifetime. Undercroft’s students develop and thrive through an extraordinary balance of self-direction, individual attention and academic accountability that begins at a very young age. The campus is purposefully designed to be warm, peaceful and inviting - both inside and out. Undercroft’s playground is truly unique, featuring Tulsa’s only natural Playscape and expansive Sand Canyon, which encourage imaginative play and creative collaboration.