The main prupose of this study is to examine from the view point of academic staff who participated in the teacher certificate program, the factors which prevents the required behavior of teachers, when communicating with their students. In the research carried by going through nomerous sources a number of 205 " The Required Teacher Behavior" and 20 "The Required, but not Displayed Behavior" have been determined. With the result obtained from the data of the survey, a questionaire was formulated so as to find out factors preventing the required teachers behavior. The polling was conducted among teachers taking part in the teachers certificate program carried out by the Ankara University, Gazi University, Hacettepe Universtiy and Middle East Technical University. To come up with statistic analysis from the data obtained, frequency (f) and percentage (.%) were drawn out of the conclusion. In the caseB when the distribution of figures prove to be meaningful, the chi-square technique was applied to test the results. According to the results derived from questionaires the main causes to stop teachers from showing the required behavior during classes proved to be crowdness of classes and undemocratic behavior of teachers. Furthermore, teachers' lack of self assurance, the nature of student groups, the difference of personalities of teachers and inability of some, are indicated as factors preventing the required behavior of teachers.