it's a story that made national headlines. schools across the country are facing huge budget deficits. kansas city recently announced its plan to close 26 public schools. and just this week detroit followed suit with a proposal to shut down 45 schools. but as allan chernoff reports, there are some school success stories in detroit that could be used as a model for districts around the country. >> reporter: violin lessons for everyone begin in third grade. mandarin chinese is mandatory beginning in kindergarten, and individualized computer challenges reinforce what's taught in the classroom. in a city plagued with academic underachievement cornerstone schools, one private and two charter schools that are part of the private system, are overachievers. students on average test a year