The training goes beyond locking down schools and keeping students in rooms.
"I also, I feel unsafe when I don't know what's going on", Winslow said. During the national walkouts, students went to the football stadium and placed their backpacks on the field. They walked for 17 minutes total, one minute for each of the 17 students killed in Florida one month ago.
"We've lost innovators, inventors", he said.
New surveillance footage has been released of the Valentine's Day school shooting in Parkland, Florida, in which 17 people were killed.
"We do need some sort of gun laws, some sort of screening", says student, Lily Rakow.
Paul Ryan, the Republican speaker of the House of Representatives, said the chamber would pass school safety legislation on Wednesday. "We were encouraged to talk about it beforehand, and to make sure that the kids were respectful to one another, that there was no peer pressure to do it, and that people took it very seriously", he said, "and from my perspective, that was honored by the students".
Because schools statewide were closed due to snow, students gathered at St. Paul's Cathedral on Tremont Street at 11 a.m.to march to the State House.
Will they follow the same protocol if students want to protest abortion or racial equality? National organizers already have more events planned. The recent shooting replaced the 1999 Columbine High School massacre as the deadliest school shooting in America.More news: Now, UK to invest £48m in chemical weapons defence after spy poisoning
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In suburban Atlanta, one of Georgia's largest school systems announced that students who participated might face unspecified consequences.
Woodbury High School students' calls for action ranged from stricter regulations and more thorough background checks to outright bans on guns. Many say they're now looking at new ways of getting involved - volunteering for political campaigns and participating in local caucuses.
At the end of the 17 minutes the students converged from their semi-circle for a big group hug.
"Change never happens without backlash", said Kara Litwin, a senior at Pope High School in Cobb County. "In compliance with the District's policy "... to protect the exercise of students' and employees' free speech rights, [while] taking into consideration the educational objectives and responsibilities of the School District", the sign was moved to non-school grounds.
Celebrities, students from Marjory Stoneman Douglas High School and other Twitter users voiced their support for the teenager.
Heritage principal Carrie Wells said, "I think that [the protests were] within the parameter of students' rights to free speech".
We can't really blame Mr. Hoyt or school officials for the way they handled Wednesday's walkout.
WSMV reports that Antioch High School's protest turned violent when students tore down the American flag and brawled, while WKRN adds that students threw water bottles into the crowd and jumped on a police vehicle before eventually being stopped by teachers.