My students know that it is a rule in our classroom that they must raise their hand and wait to be called on before they speak/answer. But there are students who consistently call out while I am speaking or other students are speaking. I have tried telling them that I cannot call on them unless they raise their hands (that would be the natural consequence) but they get their answer out whether I call on them or not, so it hasn't made much impact. I have tried talking to the class about how frustrating it is whwen othert students do not get to speak, and when they cannot learn because others are calling out. (one student, after raising her hand, was about to speak, when, yet again, she was interupted by a classmate. She finally threw her hands up in the air, and frustrated, said " I hate when they DO that!!!) I acknjowledge when they are doing what is expected, raising their hand... When any another behavior gets out of control, I would normally be calling parents, but it happens so often, I don't want to call parents so often about something like this. Is this just a compulsive behavior of normal 6 year olds? How do you enmcourage handraising? What consequences qould you suggest for this bewhavior?