The mass shooting at ahas sparked calls for walkouts, sit-ins and other actions on school campuses across the United States aimed at pushing lawmakers to pass tougher gun laws.
Organizers behind the Women's March, an anti-Trump and female empowerment protest, called for a 17-minute walkout on March 14 to "protest Congress' inaction to do more than tweet thoughts and prayers in response to the gun violence plaguing our schools and neighborhoods."
On Monday, while much of the federal government observes Presidents Day, a group dubbing itself "Teens for Gun Reform" planned to stage a "lie-in" for gun reform outside the White House in Washington.
The Network for Public Education, an advocacy organization for public schools, meanwhile, announced a "national day of action" on April 20, the anniversary of the 1999 shooting at Columbine High School in Colorado, in which two students opened fire on their classmates, killing 12 students and one teacher.
The organization is encouraging teachers and students to organize sit-ins, walkouts, marches and any other events to protest gun violence in schools.
"The politicians sit on their hands as our children and their teachers are murdered in their schools," Diane Ravitch, the group's president, and Carol Burris, its executive director, said in a post online.
Thousands gathered at a gun control rally in Fort Lauderdale, some 25 miles from where 17 people were shot and killed at a high school this week. Students spoke passionately during Saturday's rally pleading with lawmakers to change gun laws.
The protest plans circulated widely on social media on Saturday, signaling that the outcry for new gun legislation may not fade away as it has after other recent mass shootings. Many of those shootings, including the deaths of 20 first-graders and six educators at Sandy Hook Elementary School in Newtown, Connecticut in 2012, led to a push for new gun laws, but those efforts stalled in Congress.
"We need to make this moment a movement and to actually make changes that need to happen in this country so that these kinds of weapons, AR-15s, are not in the hands of people who shouldn't have them," said Randi Weingarten, president of the American Federation of Teachers, a union representing teachers and other educators.
Weingarten said she was part of the discussions about the April 20 protest. What gives the Florida shooting more potential to spark change, she said, is that the students themselves got angry really quickly and demanded it.
Teenage survivors of Wednesday's shooting at Marjory Stoneman Douglas High School have become advocates for gun control, sparring with gun-rights activists on social media and calling for safer gun laws at vigils and in television interviews.
Thousands of angry students, parents and residents demandedwhich is about 20 miles from the site of the shooting in Parkland.
Students also shared their plan to hold a march on Washington next month under the banner of a new group called March for Our Lives. S one student of Stoneman Douglas said they hope to spark a national movement.
"March for Our Lives has support from everybody. And at the end of the day this isn't a red and blue thing. This isn't Democrats or Republicans. This is about everybody and how we are begging for our lives and we are getting support. But we need to make real change here and that's exactly what we're going to do," said Cameron Kasky, a student of Stoneman Douglas.
Some people in online posts called for a Civil Rights-era style boycott of schools until gun laws are changed. David Berliner, a professor of education at Arizona State University who also participated in the plans for the April 20 protest, said he would support such a boycott. He recalled watching a television news report about Wednesday's shooting at an airport.
"I'm crying, and I'm watching all the people all around me crying, and I just said, 'This has got to stop,'" he said.
Clare Schexnyder, a mother of a middle-school student in Decatur, Georgia, said she wants moms to take their kids out of school for a day to make a statement.
She said a private Facebook page she launched announcing a meeting of her Stop School Shootings group after the Florida shooting attracted more than 7,000 followers overnight.
Her protest is planned for March 14.
"President Trump talked about the American carnage in the United States. This is the American carnage," she said.