Boston area high school students gather in St. Paul's Cathedral in Boston before a march to the Statehouse, Wednesday, March 14, 2018. (AP Photo/Michael Dwyer)
Students hold up their signs during a rally asking for gun control outside of the U.S. Capitol building, in Wednesday, March 14, 2018, in Washington. (AP Photo/Jose Luis Magana)
Students hold up their signs during a rally asking for gun control outside of the U.S. Capitol building, in Wednesday, March 14, 2018, in Washington. (AP Photo/Jose Luis Magana)
Boston area high school students rally on the steps of the Statehouse in Boston, Wednesday, March 14, 2018. (AP Photo/Michael Dwyer)
Students participate in a walkout to protest gun violence at Lincoln Park High School in Chicago. (AP Photo/Nam Y. Huh)
Students hold up their signs during a rally asking for gun control outside of the U.S. Capitol building, in Wednesday, March 14, 2018, in Washington. (AP Photo/Jose Luis Magana)
Students Rally in front of the White House in Washington, Wednesday, March 14, 2018. (AP Photo/Carolyn Kaster)
Boston area students chant on the Statehouse steps during a rally in Boston, Wednesday, March 14, 2018. (AP Photo/Michael Dwyer)
Boston area high school students rally on the steps of the Statehouse in Boston, Wednesday, March 14, 2018. (AP Photo/Michael Dwyer)
Students from Harvest Collegiate High School form a circle around the fountain in Washington Square Park on March 14, 2018 in New York. (Timothy A. Clary/AFP/Getty Images)
Students from Harvest Collegiate High School form a circle around the fountain in Washington Square Park on March 14, 2018 in New York. (Timothy A. Clary/AFP/Getty Images)
Students sit in silence as they rally in front of the White House in Washington, Wednesday, March 14, 2018. (AP Photo/Carolyn Kaster)
Students Rally in front of the White House in Washington, Wednesday, March 14, 2018. (AP Photo/Carolyn Kaster)
A student holds a sign at Georgetown University in Washington, DC, on March 14, 2018 during a national walkout to protest gun violence. (Nicholas Kamm/AFP/Getty Images)
Students at Yarmouth High School observe a moment of silence in honor of those killed in the Parkland, Fla. school shooting. (AP Photo/Robert F. Bukaty)
Students protest during the #ENOUGH National School Walkout in New York City. (stylistofthelambs/Instagram)
Students protest during the #ENOUGH National School Walkout in New York City. (argelis_deoleo/Instagram)
Students from Miami County Day School walk out of their school to protest gun violence in Miami Shores, Fla., Wednesday, March 14, 2018. (AP Photo/Marta Lavandier)
Students protest during the #ENOUGH National School Walkout in New York City. (efarrelltalbot/Instagram)
Students protest during the #ENOUGH National School Walkout in New York City. (stylistofthelambs/Instagram)
Students protest during the #ENOUGH National School Walkout in Virginia. (rlenard43/Instagram)
Students protest during the #ENOUGH National School Walkout in New York City. (StylistoftheLambs3/Instagram)
Students protest during the #ENOUGH National School Walkout in Indiana. (jessicaloker/Instagram)
Students protest during the #ENOUGH National School Walkout in Montgomery County, Maryland. (Abby Cruz/Montgomery County Sentinel)
Around the country, students are hitting the streets to demand action against gun violence in schools. These are some of the signs they carried.