A great teacher should have the necessary command over the subject matter her or she teaches. This way he or she can be comfortable while explaining things. Teachers with a full understanding of subject matter are able to help students understand, by explaining concepts thoroughly and being able to answer all questions accurately. By displaying competence and interest in a variety of areas, us as teachers set a positive example for our students, and encourage them to explore new areas of knowledge. Although knowledge and skills are important, a teacher who is enthusiastic, compassionate, and patient will create a positive environment in which students feel comfortable learning. Great teachers truly believe that each of their students can succeed, and are dedicated to the achievement of this success.