The current study, designed as a relational research, aims to investigate the views of teachers on private courses and their efficacy levels, affecting these views. Therefore, the case was evaluated from teachers' point of views. 1065 teachers working at different secondary schools in Ankara participated in the study. Data for the present study were collected through Teachers' Views on Private Courses Scale and Ohio Teachers' Efficacy Scale. For the analysis of the data, Independent Samples t Test was utilized to examine the effect of teachers' years of experience, type of the school they work and their background education on their opinions about private courses and their efficacy levels. Results show that teachers have a positive standpoint toward sprivate courses. Accordingly, they think that private courses have fewer numbers of students in a classroom setting where students are of the same level. They also claim that private courses corroborate knowledge obtained at school; thus, subjects are learnt better. All these factors are believed to increase academic achievement. Teachers' efficacy levels are also found out to be relatively high. Moreover, it is seen that the more experience teachers have in their profession, the more efficacious they perceive themselves.