Here’s what I think, and I came up with quite a list! Do these things work for you? What would you omit, modify or add?
From my experience and observations, a dedicated, effective language instructor…
is the one who sets the tone for the class
creates a positive, open, friendly, fun-loving atmosphere in the classroom
inspires many or most of the students to want to learn the language
maintains control of the class firmly and gently
is flexible when necessary
treats each student with respect and dignity
makes learning interesting and fun
makes students feel welcome
makes students have such a positive experience that they want to come to class
gets to know each student by name (in time!)
gets to know each student’s capabilities, limits and needs (if possible!)
tries to insert humor into the lesson whenever possible
encourages each student to do his or her best
never mocks, berates, criticizes, belittles, ignores, or punishes students
never takes out his or her personal problems on the students
is lavish with praise
shows (appropriate) love and concern for every student