ALBUQUERQUE, N.M. (AP) — While students across the country plan walkouts to protest gun violence, teens at a New Mexico high school still reeling from a deadly shooting in December have organized a "walk-up" to help unify a rural campus with varied ideas on school safety.

Students at Aztec High School asked administrators if they could gather around the flag pole Wednesday to honor the 21 students killed in recent months in school shootings — 17 in Florida, two in Kentucky and two of their own.

They also will be kicking off a campaign centered on 21 pledges, which will try to engage students a...