One of the most important elements that determine the success in the preparation process for the exams is that the student tested himself in real examination conditions. As Infinity Mathematics House, the trial exams, which we regularly apply every week, allow students to reinforce their knowledge, improve time management and get used to exam psychology. These trials are performed with special content compiled from selected publications for TYT, AYT and LGS format. After each exam, detailed analysis is done by our teachers. In which issues are achieved, in which areas of error is made and the reasons for these errors are shared with the student. If necessary, the courses are planned again in line with these analyzes and the deficiencies of the student are instantly resolved. Thus, the development process is not only by teacher observation; It is monitored with a data based system. This method allows the student to clearly see where he stands according to both the individual and class average. It is an active part of learning and development. With these exams, students strengthen not only their knowledge, but also their strategies, durability and exam reflexes.