State School teachers protest against cutback plans in Spanish State Schools, as they hold up banners reading: ''Not to Cutback Plans'', in Pamplona, northern Spain, Wednesday, Sept. 5, 2012. Spain is in a double-dip recession, spurred largely by a real estate crash in 2008. It has been trying to avoid following Greece, Ireland, Portugal and Cyprus in having to ask for an international financial bailout. (AP Photo/Alvaro Barrientos)
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Striking Chicago public school teachers attend a press conference by The Chicago Teachers Solidarity Campaign outside the office of Mayor Rahm Emanuel in City Hall in Chicago on Sept. 17, 2012.
AP / M. Spencer Green
Chicago teachers walk a picket line outside Benjamin Banneker Elementary School in Chicago
Spencer Green / AP
Chicago teachers walk a picket line outside Benjamin Banneker Elementary School in Chicago on Sept. 10, 2012.
Philippe Hugen / AFP / Getty Images
Teachers roll call pupils on September 5, 2011 at the Moulins-Pergaud primary school near Lille, northern France.
Louisa Gouliamaki / AFP / Getty Images
Demonstrating high school students march towards the Greek Parliament on October 3, 2011 . High school students staged a protest march against the austerity measures, loss of jobs by their parents and the lack of books and teachers due to the crisis.
David McNew / Getty Images
Teachers and other protesters demonstrate in Los Angeles as education officials discuss a proposal to eliminate thousands of jobs.
Nathan Bilow / AP
Teachers and approximately 500 elementary, middle and high-school students form the Crested Butte Community School, in Crested Butte, Colorado gather to watch the broadcast of the presidential inauguration.
Scott Olson / Getty Images
Striking Chicago teachers and their supporters attend a rally at Union Park, Sept. 15, 2012.
Scott Olson / Getty Images
Chicago public school teachers picket outside of the William H. Wells Community High School on Sept. 10, 2012.
Sitthixay Ditthavong / AP
Thousands of public school teachers march for the second consecutive day on Tuesday, Sept. 11, 2012 in downtown Chicago.
Louisa Gouliamaki / AFP / Getty Images
Students and teachers protest in front of the Greek parliament on September 22, 2011
Scott Olson / Getty Images
Chicago school teachers demonstrate June 22, 2011 in Chicago, Illinois
Kevork Djansezian / Getty Images
Parents and students joined teachers and other school staffers at a Los Angeles protest against school budget cuts on May 13, 2011.
Bettmann / CORBIS
Concerned parents and teachers protesting the passage of Proposition 13
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Students and teachers mourn the death of six students and one teacher at
Elim Christian College on April 16 in Auckland, New Zealand
M. Spencer Green / AP
Chicago Board of Education General Counsel, James Bebley, left, and CEO Barbara Byrd-Bennett, right, listen as Chicago Teachers Union President Karen Lewis, speaks at a packed board meeting Wednesday, May 22, 2013, in Chicago.
Dario Lopez-Mills, file / AP
In this Friday July 14, 2006 file photo, teachers' union head Elba Esther Gordillo gestures as she arrives to attend a meeting with education workers a day after being expelled from Mexico's Institutional Revolutionary Party in Mexico City. Gordillo, the head of Mexico's powerful teachers' union, was arrested at an airport outside Mexico City on Tuesday, Feb. 26, 2013, for alleged embezzlement.
A child protects candles from the wind during a vigil outside the White House in Washington, DC, following the Connecticut elementary school shooting, December 14, 2012. A young gunman slaughtered 20 small children and six teachers on Friday after walking into a school in the idyllic Connecticut town of Newtown wielding at three sophisticated firearms. AFP PHOTO/MLADEN ANTONOV (Photo credit should read MLADEN ANTONOV/AFP/Getty Images)
M. Spencer Green / AP
Student Edgar Guerra, 10, watches Chicago Public School teachers picket outside Maranatha Church where Mayor Rahm Emanuel was visiting on Monday, Sept. 10, 2012.
John Gress / Reuters
Chicago Teachers Union President Karen Lewis smiles during a news conference in Chicago on Sept. 18, 2012.
Sitthixay Ditthavong / AP
Chicago Teachers Union President Karen Lewis speaks at a news conference outside the union's headquarters in Chicago on Sept. 9, 2012
David McNew / Reuters
Parent Rosa Flores holds a sign in Spanish that calls for punishment of accused teachers outside of Miramonte Elementary school as the investigation continues into a bizarre sexual abuse scandal in Los Angeles, California Feb. 6, 2012.
David McNew / Reuters
Parent Rosa Flores holds a sign in Spanish that calls for punishing the accused teachers at Miramonte Elementary School in Los Angeles on Feb. 6, 2012
Tomas Munita for TIME
Seventh-grade English teacher Najia Zamani is a rarity: only 28% of Afghan teachers are women
Kia Mistilis for TIME
"Gentle means" Teachers from remote communities workshop a scene in Sydney
JEAN CLAUDE MOSCHETTI/REA
RITES OF SPRING: Teachers protest Raffarin's reforms
M. Spencer Green / AP
Students walk through the gates outside Benjamin E. Mays Academy, Wednesday morning, Sept. 19, 2012, after Chicago teachers voted to suspend their first strike in 25 years.
“A voice like yours is heard only once in a hundred years.” — Arturo Toscanini to the American contralto Marian Anderson Born in Philadelphia in 1897, Marian...
As schools across the country review their lockdown procedures, more than 100 teachers and administrators in Alabama took crisis-management preparation a step...
