Our kids seem to be very frustrated and angry with each other. We have taught the children to use a GREEN tone of voice most of the time. A green zone voice works the best, and gets the most done. If someone is not listening to you, and you have tried a green voice several times, then you can move to a YELLOW tone of voice. And if that doesn't work, then get a teacher. People's voices should rarely every go to the RED zone. A good example of a red tone of voice for kids is stranger danger; a good time to scream your head off.