Since 2012, we have been organizing the CERN International Masterclass (http://www.physicsmasterclasses.org/) event. The event is an international organization held for one day to unravel the mysteries of particle physics, with the participation of over 13,000 high school students from more than 60 countries, including our country. We hold the event twice a year, with the support of the Konya Metropolitan Municipality in Konya and organized by ODTÜ IVMER at ODTÜ in Ankara, where participating high schools are located.

During the full-day event, the first morning session provides participating students with a theoretical foundation in particle physics. The second lesson covers the experimental applications of particle physics, particle physics experiments at CERN, and the latest developments in the field. In the afternoon lesson, students learn how particles are detected from the data collected by the ATLAS Experiment, and the interface and use of the HYPATIA program, which is used to analyze the data, are explained with examples. Then, the practical section begins, and our participating high school students classify particles by evaluating the particle-detector interactions they see using the filtered real data sent by CERN for the event day. After the evaluations are completed, the recorded events are added to the website created by CERN by all schools participating in that day's event, and graphs are created with data from all over the world. Before that, in order to convey statistical information to the students, the data from the participants in the hall is interpreted and discussed in a question-and-answer format. Subsequently, all participants in the event engage in interactive interpretations of the graphs representing all results via a teleconference led by experts from CERN. Our students, who interpret the nature of particle physics using real data from the ATLAS experiment, complete the event and earn a certificate.