The group to be trained by gamification method; A gamification application was made every week. Points are given in the table prepared for those who are successful in weekly participation in gamification, coming to the lesson with their homework done, participating in the discussions in the lesson, and in the evaluation at the end of the lesson. Every week, the winner was given a gift. At the end of the lesson, the points in the headings of "Leaderboard", "Badge" and "Status", which are the elements of the gamification method, were added weekly. And in the last week, a meeting was held with the students according to all scores and a post-test was applied.

Before the study, videos were found each week that lecture on the relevant subject, videos were shot on the subject, and the videos were transferred to the students via a platform. At the end of each video, they were told to complete the homework on the subject and come to the lesson.

In the lesson, the lesson was processed with activities according to the videos.

Lessons were taught with traditional learning method.

Gamification method group

Teaching Material Motivation Instructional Material Motivation Scale: It was developed to measure the effect of instructional materials on students' motivation. The scale is a 5-point Likert-type scale consisting of 36 items. Each item in the scale will be scored from 1 (Not True) to 5 (Very True) by the students. Accordingly, the lowest score on the scale is 36, and the highest score is 180.

In the Turkish adaptation study conducted by Acar (2009), the reliability coefficient (Cronbach Alpha value) was found to be 0.92 in the reliability analysis of the scale. An increase in the score on the scale indicates an increase in motivation.

Student Interest Scale; Developed by (Mazer, 2013) in order to evaluate its relationship with variables such as learning motivation, effective learning, and level of participation in the lesson, the Class Interest Scale is a 5-point Likert-type measurement tool consisting of 16 items and two sub-dimensions (affective and cognitive interest). et al (2015) ("1" Strongly disagree, "2" Disagree, "3" Undecided, "4" Agree, "5" Totally Agree). There is no reverse coded item in the scale. Affective interest sub-dimension of the scale consists of 9 items and cognitive interest sub-dimension consists of 7 items. The Cronbach's alpha internal consistency reliability coefficients of the scale were .95 for affective interest sub-dimension and .88 for cognitive interest sub-dimension. As the scale score increases, the interest increases.

Attitude Scale Towards Learning: The scale developed by Çetin et al. was developed to determine students' attitudes. As a result of all validity and reliability analyzes, there are 34 items in total. Of these scale items, 25 are positive and 9 are negative. The five-point Likert scale is "Totally Agree", "Strongly Agree", "Partly Agree", "Disagree", "Strongly Disagree". The highest attitude score that can be obtained from the scale is 170 and the lowest attitude score is 34. As the attitude score increases, the positive attitude increases. The Cronbach Alpha internal consistency coefficient for the scale was found to be 0.94 for the overall scale.