Founded in 1981, the Lone Oak Montessori School has been providing a Montessori education for nearly 30 years. Tuition ranges from $3,810 per year for a two-day-a-week toddler program to $10,852 per year for elementary school enrollment. The school also provides an extended day program. Every teacher is approved by the State of Maryland Board of Education as well as the Association Montessori Internationale.