Why Choose STM?

STM is a safe, nurturing, faith-centered environment serving students in Pre-Kindergarten through 8th grade with a spiritual, physical and emotional whole child approach to academic excellence.

STM offers daily religious instruction, prayer partner activities, singing practice and attendance at weekly student-led school Mass. Close proximity to His Excellency, Bishop Burbidge, provides opportunities to meet and learn from Dioceasan leadership.

STM is a U.S. Department of Education National Blue Ribbon School and recently voted Best Private School in Arlington. Students consistently score in the top 25th percentile on standardized assessments - above the national average.

STM faculty are licensed, highly qualified and passionate. They continue the Immaculate Heart of Mary school legacy and traditions using current research-based teaching methods and hands-on project based learning.

STM challenges its students through differentiated instruction to meet individual learning needs.

STM class sizes are small with an average of 19 in each class and student to faculty ratio of 13:1.

STM actively incorporates STEM into the curriculum and provides a high tech learning environment equipped with interactive whiteboards. Technology instruction is facilitated in the classroom or state of the art Design Lab, which houses equipment including Ozobots, Arduinos, robotics, green screen technology, 3D printers and 1:1 device ratio.

STM was the first elementary school in the world to build, test and launch a satellite into orbit from the International Space Station through an innovative, multi-year Mission Possible science and engineering partnership with NASA.