It is inappropriate for a teacher to yell at children and slam doors into their faces. This is because it is a form of verbal abuse and can have a negative impact on the child's emotional and psychological well-being. Yelling can make children feel scared, humiliated, and worthless. It can also lead to anxiety, depression, and low self-esteem. Slamming doors can also be a form of intimidation and can make children feel unsafe.

In addition to being harmful to the child, yelling and slamming doors can also create a negative learning environment. When children are constantly being yelled at, they are less likely to be engaged in learning and more likely to be disruptive. This can make it difficult for the teacher to teach and for the other students to learn.

Finally, yelling and slamming doors can set a bad example for children. Children learn by watching the adults in their lives, and if they see their teachers yelling and slamming doors, they are more likely to do the same. This can lead to a cycle of violence and abuse.

If you witness a teacher yelling at children or slamming doors into their faces, you should report it to the school principal or another administrator. It is important to remember that teachers are in a position of authority and should not be abusing their power.