given these children's age, laila hussein told us it's likely none of them has ever been outside thishussein: when i meet children in the camp, i notice that they have very limited imagination. >> stahl: and very limited information. >> hussein: i met children. they don't know that the egg coming from a chicken. >> stahl: really? >> hussein: they don't know that the fish live in the sea. it's our responsibility to bring the world inside the camp. we can't, like, take them out. but we can bring the world inside. >> stahl: and bring the world inside their makeshift homes. the i.r.c. runs a home visit program that sends trained volunteers-- refugees themselves like this woman-- to visit 3,000 refugee families once a week, each time with an age- appropriate educational activity. here a home-made picture book for 20-month old belal." bisse," he says. cat. what does the cat say? >> meow. >> stahl: the idea is to teach the child-- and more importantly, encourage essential one-on-one interactions with the parent. belal is one of nine children in this family that was driven from their home in