In this study, the design, implementation and evaluation processes of the 4MAT teaching model activity, which is designed in accordance with the holistic brain model for teaching the graphic representation of data at the 8th grade level and making the appropriate transformations between these representations, are presented in this study. The implementation of the event took place in two village secondary school in the central district of a province in the south of Turkey in the 2021-2022 academic year. The activity was applied to 42 eighth grade students in two separate classes. A student opinion form was created by the researcher to see how the activity was perceived by the students. Content analysis was carried out in the light of the data obtained from the applied student opinion form. At the end of the research, it was seen that the students stated positive statements about the activity such as realizing permanent learning, prompting thinking, finding original ideas, giving various examples, and providing fun and understandable. At the end of the research, students commented on the activity as providing permanent learning, encouraging thinking, allowing original ideas to be found, and providing fun and understandable learning by giving various examples.