Gabrielle Emanuel

New York's John F. Kennedy International Airport is among the busiest in the country: More than 1,000 flights touch down and take off each day. More than 50 million passengers hurry through its gates each year.

But something else is happening, too.

Not far from the waxed floors of the terminals and the automated voice proclaiming the end of the moving walkway, there's a school. And a classroom that has six wheels, two wings and a tail. It is a Boeing 727, parked on the tarmac near the hangars and warehouses.

Part of NPR's Your Money And Your Life series

"How many of you guys have $1,200 in your pocket right now?"

Victor Robertson's voice echoes through the auditorium at Ballou High School in Washington, D.C., where 700 students are taking their seats.

Robertson is from the city's Summer Youth Employment Program, which connects 13,500 young adults with summer jobs at places like CVS and the Department of Parks and Recreation.

On a quiet street in Detroit, light pours into the back windows of the Kirksey home. In the back of the house the walls are lined with textbooks, workbooks and multicultural children's books. It's a home — but it's also a classroom.

Brandon, 8, is wearing pajamas and a paper crown from Burger King. He heads into the back room and pulls a large laminated world map off the bookshelf.

"This is the whole entire map! Michigan," he says enthusiastically pointing to his home state. His two siblings, Zachary, 3, and Ariyah, 1, echo him.

Standing at the foot of Mount Wachusett's slopes, Ray Jackman bends over and hoists Robbie McAllister out of his wheelchair and onto two neon yellow skis.

The teenager squeezes into a thick plastic seat mounted just above the skis.

"OK, there are a bunch of straps," says Jackman as he buckles the crisscrossing seatbelts.

Jackman is a program coordinator at the Massachusetts Hospital School, a state-run facility. It's half school, half pediatric hospital, and all 85 students are patients, with serious, long-term conditions.

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