Coloradoan: Larsen and the school’s principal at the time, Bryan Maddox, worked with education researchers at Colorado State University to implement an earlier version of teaching important life skills to students at Centennial — Positive Alternatives to School Suspension, or PASS — that grew into Discovery, said Dierdre Cook, a teacher at Centennial’s former middle school from 1983 to 1987 who returned as the high school’s principal from 2002 to 2005.

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