Your normal teaching volume should be low and clear. When you raise your voice, the difference should be obvious. Reduce the volume to normal as soon as possible after a strong order. So yelling can be a sign of malpractice.
But it can also be used by teachers who are very effective, who care deeply and show it. It's also a bad idea for a teacher to raise her voice to a particular student when everyone else is sitting quietly. He has served as Charleston County Teacher of the Year, Walmart Teacher of the Year, and CEA runner-up as National Educator of the Year. If a teacher cries out of frustration or anger, then that teacher needs to reflect on the effectiveness of this tactic.
So what happens to that teacher if he forbids shouting? That wonderful, magical teacher who holds a class in the palm of his hand but occasionally rants and roars to keep them there? It contains some valuable insights from teachers who have experimented with how their tone of voice affects the functionality of their classrooms. But if it's true and your child's teacher routinely raises his voice, it may be something he wants to mention to the teacher. It must be a frustrating year for you to have to raise your voice so often that it can go a long way in alerting the teacher to how her actions are perceived both inside and outside the classroom. Making your teacher's voice heard is a simple way to transform behavior without costly training plans or resources.