Nov10 P.B.I.S CELEBRATION!! TODAY 11TH & 12TH GRADERS!! Posted on November 10, 2017 by Ms. Salsberry P.B.I.S CELEBRATION!! TODAY 11TH & 12TH GRADERS!! PBIS celebration for 11th and 12th graders- today- The criteria for attending this event is 3.0 or higher, less than 6 tardies, and no office referrals.