Sam Dillon:

As recently as 2008, Locke High School here was one of the nation’s worst failing schools, and drew national attention for its hallway beatings, bathroom rapes and rooftop parties held by gangs. For every student who graduated, four others dropped out.
Now, two years after a charter school group took over, gang violence is sharply down, fewer students are dropping out, and test scores have inched upward. Newly planted olive trees in Locke’s central plaza have helped transform the school’s concrete quadrangle into a place where students congregate and do homework.
“It’s changed a lot,” said Leslie Maya, a senior. “Before, kids were ditching school, you’d see constant fights, the lunches were nasty, the garden looked disgusting. Now there’s security, the garden looks prettier, the teachers help us more.”