NEWS.

WASHINGTON – President Barack Obama started the school week Monday with a call for a longer school year, and said the worst-performing teachers have "got to go" if they don't improve quickly.Bemoaning America's decreasing global educational competitiveness, Obama sought in a nationally broadcast interview to reinvigorate his education agenda. At the same time, the president acknowledged that many poor schools don't have the money they need and he defended federal aid for them. But Obama also said that money alone won't fix the problems in public schools, saying higher standards must be set and achieved by students and teachers alike.Asked in an interview if he supported a year-round school year, Obama said: "The idea of a longer school year, I think, makes sense." He did not specify how long that school year should be but said U.S. students attend classes, on average, about a month less than children in most other advanced countries.