So 3 kids witnessed another kid cheating on a test. There are not that many tests each grading period so the tests count a lot (30% of you grade or so). The teacher obviously didn't notice anything. They want to know if they should turn the kid in or not. The teacher gives hard tests and curves the test so other people's scores do affect how much of a curve there will be. This is middle school level. Would you tell them to turn the student into teacher, just tell the kid they saw her cheating without telling the teacher or say nothing and just let spread rumors like junior high kids are good at doing?