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GOP presidential candidate Mitt Romney will spend the next seven months convincing us to send him to the White House. To get there, he'll have to make a strong case to one very important voting bloc: women.

A poll out this week by ABC and the Washington Post shows President Obama with a 19-point lead over Romney with women voters. For Romney to win, he's got to make a significant dent in that margin.

How do you measure who is an effective teacher?

More states are wrestling with that question, now that the Obama administration is encouraging schools to evaluate teachers with a combination of student test scores and classroom observations.

The question of whether teacher evaluations are reliable indicators for teacher effectiveness has long been controversial. But New York City reignited the debate when it rated thousands of teachers with test scores alone — and then released those ratings to the public.

Major storms have reached a swath of the Great Plains from Oklahoma City up through central Kansas and into Nebraska. Weekends on All Things Considered host Guy Raz speaks with Chance Hayes, the Warning Coordination Meteorologist at the National Weather Service office in Wichita, Kansas.

From North Korea's failed missile test to one of the biggest scandals unraveling in China, weekends on All Things Considered host Guy Raz talks with James Fallows of the Atlantic about the latest stories in the news.

NPR's Joel Rose has a round-up of the week's news in the Trayvon Martin shooting case. Neighborhood watch volunteer George Zimmerman is in jail and the legal case is moving forward.

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The number of major record labels is down to three. But that's not necessarily a bad thing when it comes to promoting music that's out of the mainstream. A label called Amarrass Records, founded in the Indian state of Rajasthan, is dedicated to exposing and preserving indigenous folk music before it disappears.

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Now that President Obama is in Cartagena, he'll begin the conversations about trade and business opportunities in Latin America. But the Summit of the Americas is not the first meeting this week for President Obama and Brazilian President Dilma Rousseff.

On Monday, Rousseff visited the White House. And after this weekend's summit, Secretary of State Hillary Clinton will head to that Brazil's capital, Brasilia.

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