Teachers can be loving, involved, and caring. But some can be unfair and egotistical. A good teacher should make her students excited to come to school each day. A good teacher should respect her students, make them feel comfortable in the classroom, and be consistent.
A good teacher will make their students comfortable. They will not snap back if a student asks a question. If they do, the student tends to not ask more questions. Then that causes them to fade out. Students like a teacher's room to be bright and full of projects or artwork that they have done. It gives the room a positive/happy look. A teacher should never discipline the students to the point to where they are afraid of her. That makes them not open to class discussion and other things.