In the world of education, there is a textbook, which is a book that is used to clarify and simplify the presentation of material so that students are more active in learning and independent towards the expected knowledge or skills. Textbooks must have good quality so that learning objectives can be achieved properly. In the Minister of Education and Culture of the Republic of Indonesia Number 8 of 2016 Article 3 Paragraph 5 states that the contents of a textbook in a textbook must fulfill several aspects, namely material aspects, linguistic aspects, presentation aspects, and graphical aspects. The focus of this research lies in the linguistic aspect. In reality, there are still textbooks that do not meet the aspects of using language that is good and right, especially in learning Arabic. This study aims to find out the language errors contained in arabic textbooks class IX Islamic Junior High School even semester compiled by Deliberations of Subject Teachers in Kediri district, and correction of the language errors. This study used the library method using content analysis techniques, in which researchers analyzed textbooks and studied various reference books to obtain a theoretical basis for the problem under study. The results of the research show that there are several language errors in the arabic textbooks. These errors are reviewed from three sides, namely from the side of syntax, morphology, and writing. Syntactic errors consist of eight forms of errors. As for morphological errors, there are six forms of errors. Then for writing errors there are four forms of errors.

Arabic is often considered difficult by most students therefore an appropiate strategy is needed so that students do not find it difficult. In this case, the student learning strategy is one of components that must be considered carrefully by the teacher in improving student’s Arabic learning outcomes. Student learning strategies according to O’Malley and Chamot are divided in to 3 categories, namely metacognitive, cognitive, and affective social. The purpose of this research is to find out what strategies are used by student in learning, and the influence the student learning strategies on student learning outcomes of MAN 5 Kediri. This study used a quantitative method with an ex-post facto design. The population of this study was 230 students. While the number of samples is this study were 58 students. Sampling was determined by means of Random Sampling. The results of this study reveated that the learning strategies that were mostly used by students were cognitive strategies with an average score of 57,28. While student learning outcomes belong to the medium category. The effect of metacognitive learning strategies on learning outcomes was 4,8%, the effect of cognitive learning strategies on learning outcomes was 8,3%, and the effect of affective social learning strategies on learning outcomes was 7.1%.

The research discusses the book Majmu'atul Mahfudzot in Arabic Vocabulary Mastery in Class VIII-A Islamic Junior High School Hasan Muchyi Kediri. The aims of this study were to find out the role of the book Majmu'atul Mahfudzot in mastering Arabic Learning Vocabulary and also to find out the factors that support and inhibit the vocabulary of learning Arabic in class VIII-A Islamic Junior High School Hasan Muchyi Kediri. This study uses a descriptive qualitative method using a type of field research. Data collection techniques using observation, interviews and documentation. The data analysis uses data reduction, data presentation, conclusions. The validity of the data using source triangulation and technique triangulation. Furthermore, the results of the study show that (1) there is a role for the book majmu'atil mahfudzot on Arabic vocabulary mastery in class VIII-A Islamic Junior High School Hasan Muchyi Kediri. (2) the supporting factors are the existence of Mahfudzot lessons using the majmu'atil mahfudzot book, the methods used by the teacher vary, the supporting facilities and infrastructure of the madrasah. The inhibiting factors include the lack of student will, lack of support from parents or friends, dependence on mobile phones.

This study aims to determine a series of processes and results in implementing nahwu learning in class 4 Ibtida' Al-Amien Islamic Boarding School, Kediri City using the book al-fushul al-fikriyah. The approach used in this study is a qualitative descriptive research type, and the data analysis used in this study is the Miles and Huberman version of the analytical model. In collecting data, researchers used observation, interviews, and documentation related to learning the book al-fusul al-fikriyah at the cottage. The results of the research show that the learning begins with a lesson plan that is prepared and prepared by the ustadz and the students so that learning runs more effectively. Furthermore, the implementation of learning through the deductive method is accompanied by several supporting activities such as reasoning, deliberation, rote deposition, practice reading and analyzing pronunciation in books. Evaluation of learning consists of oral tests, written tests and assignments. The learning outcomes can be said to be effective and optimal. This is evidenced by the acquisition of students' scores that reach even more than the average value that has been determined, and an increase in students' understanding and mastery of nahwu science after studying the book.

Factors related to writing skills to improve students' abilities include the methods used by teachers. And one of the learning methods related to writing skills is the imla' mandzur method. This method can train students in measuring memory and writing Arabic.This research is a type of qualitative descriptive research and the method used in this research is a qualitative method, with the Miles and Huberman approach. Data collection methods are interviews, observation and documentation, or what is usually called the triangulation method. The formulation of the problem in this research is how to apply the imla' mandzur method and what problems are faced. The aim of the research is to find out how to apply the imla' mandzur method, what are the problems in applying the imla' mandzur method. The results of this research show that the application of the imla' mandzur method in class VIII MTs Nurul Islam can improve students' writing skills. the process of implementing the imla' mandzur method includes giving mufrodat before learning, students are asked to observe the reading text, once it is sufficient then the teacher asks students to close the reading text, the teacher dictates the text and students are asked to write what the teacher dictates on the worksheet without looking at the reading text . Sometimes the teacher also writes a reading text on the blackboard, asks the students to observe the writing, the teacher erases the writing and dictates it. The problem faced is that students do not master Arabic vocabulary, making it difficult for them to follow writing skills using the imla' mandzur method.

Language is an essential component of culture. Man expressed culture in language, and he cannot speak in languages ​​in isolation from culture. As for the relationship of culture in teaching Arabic to non-native speakers, understanding Arab culture is an essential part of learning this language. Speakers other than this language will master it well if they get to know the culture of Arab society sufficiently. The researcher noticed in the book “Al-Arabiyya Bayna Yadaik” Volume 1-3 by Abd al-Rahman bin Ibrahim al-Fawzan and his companions, and found Islamic culture in terms of religious purposes in many phrases, examples, text, dialogue and exercises in all lessons.