Education Week
Cities are pouring millions of dollars into early-education programs, often aimed at their neediest young children. But many of those children aren't showing up.
In 2013-14, a quarter of the preschoolers from low-income families enrolled in the District of Columbia's preschool program missed more than 10 percent of the preschool year, according to a study released in January. That's equivalent to about a month's worth of classes...