The aim of this research was to determine the degree to which Arabic language teachers practice creative thinking skills in teaching 12th grade students in North Al Batinah Educational Governorate in the Sultanate of Oman, the level of scientific thinking among 12th grade students in North Al Batinah Educational Governorate, and the relationship between creative thinking among Arabic language teachers in teaching 12th grade students in North Al Batinah Educational Governorate and the scientific thinking of their students. The study adopted the descriptive correlational approach. The population of the study consisted of 6,550 grade 12th students, and the sample consisted of 655 male and female students. The sample was chosen by the cluster method and then simple random assignment. To achieve the study objectives, a questionnaire for creative thinking skills and scientific thinking skills test were applied. Among the results of the research were that the degree of practicing creative thinking skills among Arabic language teachers in North Al Batinah Governorate in teaching students was medium (M= 3.32), and the degree of practicing scientific thinking skills among 12th students in the Arabic language subject in North Al Batinah Educational Governorate was medium (M=1.51). The results of the third question showed a significant weak positive correlation between creative thinking skills and scientific thinking skills of students. Among the most prominent recommendations were intensifying training programs, taking care of their quality, following up on their training impact in order to enhance the practices of creative thinking skills and scientific thinking skills in Arabic language teaching methods, and enhancing creative thinking skills and scientific thinking skills when developing the Arabic language curriculum for the twelfth grade in the future.