This study aimed to investigate the effectiveness of the role of an educational unit using cardboard in developing the aesthetic sense of art education students at King Faisal University. The study members consisted of (58) students from art education students in the course of forming consumed environmental materials, and the sample represented all members of society by (2) male and (3) female students in the course for the year 1438/1437 AH, the study used a set of tools represented in the cognitive test, skill test and observation tool within (20) aesthetic criteria to evaluate the final product of the cardboard material, where these tools were developed by researchers. The study resulted in the following results: The students 'achievement in the test after studying knowledge in the educational unit was high, And that there is a difference in the two averages of applying the pre and post cognitive test in favor of the post, and the results also showed that there is a difference in the averages of the application of the pre and post skill test in favor of the post, and the ratios shown by the Black Test among the average scores of the students in the cognitive test (the pre-post The percentage was acceptable, as these values showed that the students 'attainment of the knowledge and skills included in the unit, which indicates its effectiveness in students' acquisition of the knowledge and skills contained therein, which lead to a high aesthetic sense in them, and the results of the study indicated that all axes of the observation tool to judge the cartoon product The implementer and the extent of students' responses in developing the aesthetic sense is a statistically significant function, as for the gender variable The results showed that there are differences in the development of aesthetic sense caused by working with cardboard materials for the benefit of female students. The study recommended attention to the necessity of integration between the cognitive and skill framework in all the different educational curricula and the inclusion of the study plan standards and behaviors that encourage the sense of beauty, in order to narrow the gap between theory and application to increase the efficiency of the educational process.