An important aspect of a teacher's communication skills is that she have a positive, motivated attitude that generates interest in the students. A teacher should make her students enthusiastic and make them not feel intimidated by the material.
Teachers are the focal point of the class's attention most of the time and therefore communicate with their entire bodies. A teacher's body language should be positive and dynamic, not passive or nervous.
A teacher should have a good sense of humor but know how to use it appropriately. A sense of humor can put the students at ease, but a teacher who jokes too much can give the impression of not being serious. Teachers should also avoid jokes that are inappropriate or at the expense of students.
The teacher should not be the only one talking in the classroom. Build in questions and group discussions to allow the students to talk and engage in a dialogue with you. Take students' contributions and opinions seriously and do not simply dismiss them.
Teachers should stay up-to-date with communication technology such as PowerPoint and websites. These can be great ways to improve communication skills, but teachers need to take the time to learn the technologies and utilize them to their fullest potential.