President Obama spoke at the Catholic-Evangelical Leadership Summit on Overcoming Poverty at Georgetown University Tuesday. Andrew Harnik/AP hide caption

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Seventeen-year-old Jairo Gomez lives in a one-bedroom apartment with eight other family members. His school attendance has suffered because he often has to stay home to babysit his younger siblings. Emily Kwong/WNYC hide caption

itoggle caption Emily Kwong/WNYC

Nobel Laureate Kailash Satyarthi has fought to end child labor in India, where 11 percent of the country's children work. In 2010, these children toiled at a construction site in New Delhi. Daniel Berehulak/Getty Images hide caption

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Students Dakota Gibson (left) and Gary Barber with school volunteer Kenny Thompson after their StoryCorps interview in Houston, Texas. StoryCorps hide caption

itoggle caption StoryCorps

Brittiny Spears, 26, is not with the father of her daughter, Zykeiria, 4. "He just still wanted to go out and party and be a little boy," Spears says. Jennifer Ludden/NPR hide caption

itoggle caption Jennifer Ludden/NPR

For some kids who grow up in poverty, the bond developed with Mom is especially important in dealing with stress. iStockphoto.com hide caption

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Students at Garfield Elementary School eat dinner as part of an after-school program in Kansas City, Mo. In the past few years, a federally subsidized school dinner program has spread from six to all 50 states. Charlie Riedel/AP hide caption

itoggle caption Charlie Riedel/AP