iScott, Set the tone for the class with a well prepared syllabus that outlines the expected behavior for the class. Reinforce this behavior as you do class introductions and the welcome. When the behavior occurs ask to talk with the individual privately. Talk with the individual and ask for his/her cooperation in the class. This will generally result in better behavior and performance. It this doesn't work then put the student on a behavior contract which outlines the expected behavior with a specific time frame set out for the change in behavior. During all of this keep your administration informed so they will support you if you have to dismiss the student from class. No student has the right to disrupt and interfere with the learning of others. Dismiss the student from the class and focus on reaching the remaining students. Removing the mis-behaving student sets the tone for the rest of the class and you will be able to get back to teaching. Gary Dr. Gary Meers