Ms. Jan Redinger Northwest High School Child Development Lab 13501 Richter Farm Road Germantown, MD 20874 Tel: (301) 601-4636 For Montgomery County Public Schools Policies and Procedures for Child Development Laboratory Programs, please contact Montgomery County Public Schools 850 Hungerford Drive Rockville, MD 20850-1747 Tel: (301) 279-3438 Since teachers only work ten months, call us before June 15th or after September 1st.