Metro:

Take off at Orange Line, Dunn Loring/Merrifield station, take Fairfax Connector 402, southbound to Fairfax Hosiptal direction.
the 3rd Stop will be Luther Jackson Middle School

Map

Drive: 
Luther Jackson Middle School
3020 Gallows Road
Falls Church, VA 22042

the red arrow on following map show you how to drive in/walking in to the school.

Parking:
You can park at the Great Wall supoermarket parking lot.
or, parking at the Dunn Loring metro  (free weekend parking), then take a 402 bus to the school

following map, the blue area is suggested parking area