Last night, I started reading the New York Times extraordinary series, The Invisible Child, about a homeless middle-school student named Dasani, her family life and her school. I couldnt stop reading it. I stayed up past midnight. One thing that kept me up later: an increasing number of children share her predicament. Last school year, there were an estimated 26,ooo homeless K-12 students in Washington, 1,324 in the Seattle School District.