Students walked out of more than 30 Miami schools on Friday, some chanting "Justice for Trayvon," in a sign of solidarity with the 17-year-old black student who was killed by a neighborhood watch volunteer last month in Sanford, Fla.
Protesters numbered more than 1,000 at some schools, others fewer than 100. Some teachers and principals gave their tacit approval.
The first walkout was at Carol City High School, where Trayvon Martin was a student last year. Hundreds of his old schoolmates walked out in the middle of the school day.
"When I think about that boy, I think about my own kids" and that "if I had a son, he'd look like Trayvon," President Obama just said when asked about the death of 17-year-old Trayvon Martin and the national discussion it has reignited about race relations in America.
Without commenting on what happened in Sanford, Fla., on Feb. 26, when 28-year-old George Zimmerman shot Martin, the president said it is "absolutely imperative that we investigate every aspect of this" to determine "exactly how this tragedy happened."