Watch: Video Shows High School Students Protesting Gun Violence During Detention

Forty-six students from Pennsylvania's Pennridge High School served detention over the weekend for participating in last week's nationwide school walkout. A video that has since been widely shared shows the group using the opportunity to protest, sitting in a circle on their cafeteria floor while linking arms and wearing the names of gun violence victims on their shirts.

They are among the 225 Pennridge High School students—known as #Pennridge 225—who faced detention for joining schools across America in calling for gun reform. Last Wednesday, students walked out of their classrooms for 17 minutes, paying tribute to the 17 victims of the deadly shooting at Marjory Stoneman Douglas High School in Parkland, Florida. The walkout took place exactly one month after the school shooting.

The students chose to participate in the national walkout rather than their in-school assembly and faced disciplinary measures.

According to local news outlet The Morning Call, Pennridge sent a notice to students and parents that a remembrance assembly would take place to mark Parkland victims, but also warned that students would face consequences for walking out without permission.

"We were disappointed at our school's response to our peaceful walkout, but we wanted to tell them that we did not feel defeated," Anna Sophie Tinneny, a 17-year-old senior at Pennridge, and the organizer of the detention protest, told Newsweek. "The walkout and the detention were a way to show Congress how many young people are demanding that they take action. And I think it was partly to say, 'If you don't act now, in a few years we'll be in your seats, and we will.'"

Tinneny also told Newsweek last week that students whose parents could not sign them out for the walkout had been given a Saturday-morning detention. Emails and written notes were not accepted.

While her parents were "not completely in agreement with the reasons for the walkout" they still supported her, Tinneny said. Both Tinneny and her mother went with her to the school board meeting to try and persuade students to have the walkout.

"Just to be clear, no student will be disciplined because they expressed any particular viewpoint or opinion," Superintendent Jacqueline A. Rattigan said in a statement to parents and students regarding the school assembly and anyone who chose to walk out. "Rather, the disciplinary consequence will be given for willfully breaking a school rule about leaving the building without permission."

Rattigan said that for the 800 students who did attend the assemblies at the high school, "it was a moving experience."

The 17-year-old organizer said she drew inspiration from past movements involving students. "They always did it peacefully and silently," Tinneny said. "There's a power in silence. There's power in being so silent that you're incredibly loud."

She says the coverage from the detention, which has now gone viral, has given #Pennridge 225 a huge platform, and that she and her classmates "are prepared to use it." "We want gun reform and we want it now," she said.

Other schools across the nation have stirred controversy for serving detention slips as students took part in activism. Districts have said consequences are related to "defying authority, not for participating," but students have said their participation in individual walkouts has outweighed any consequences.

Chicago students called participating in the walkout "a badge of honor," and Kentucky's North Oldham High School students said the rally was something they wanted to "take the fall for" because they believed in it.

Additional reporting by Nicole Rojas.