Tools for Coherence in educational texts Arabic language book for the twelfth grade level

Textual linguistics is considered as the largest unit of the study. Researchers and experts have been conducting research and study on this subject and have monitored the linguistic phenomena associated with it. Sometimes they find that they put the internal structure and its quality and function under the microscope, and sometimes they see the outer part. In this research, through the Coherence text and the descriptive-analytical method, we realized one of the most important forms of the texts, which is the educational text as a scientific educational center, and as a result we have to choose the arabic language book at the 12th grade of high school in the literature section. This is the last step in high school for teaching. This research explainstextual correlation, all types of referencing, replacement, deletion, attachment, and studying lexical rules and its tools through repetition and adaptation. The study showed that Coherence is available in all the texts of the book through its tools, and you can see that it is repeated in a text and is reduced in another text according to the purpose set by the book and the program in which the text is located.