Greg Toppo:

If educators want to shrink the number of students who drop out of high school each year, they must greatly increase the number who can read proficiently by the time they’re in fourth grade, a key non-profit children’s advocacy group says in a new report.
The findings, out today from the Baltimore-based Annie E. Casey Foundation, echoes research on reading proficiency going back decades, but it’s the first to draw a direct line between reading and the nation’s long-term economic well-being.
“The bottom line is that if we don’t get dramatically more children on track as proficient readers, the United States will lose a growing and essential proportion of its human capital to poverty,” the authors say.
Ralph Smith, the foundation’s executive vice president, says recent research shows that dropouts “don’t just happen in high school” but that students give clear indications as early as elementary school that they’re on a “glide path” to dropping out. Among the clearest signs: difficulty reading and understanding basic work that becomes more detail-oriented around fourth grade.

Valerie Strauss has more.