Readability Prose Texts Factors in the Book of (Arabic is my language) for Fifth Grade in the Syrian Arab Republic

The research aims to prepare a list of the most important factors in the (Arabic is my language) books for the first stage of basic education, and to know the availability of these factors in prose texts in the book (Arabic is my language) for the fifth grade. To achieve the first objective, the researcher prepared a list of major readability factors in the books (Arabic is my language) for the first stage of basic education, this list formed from four main components: the word, sentence, paragraph, and style, falls underneath (32) sub-factor.To achieve the second objective, the researcher designed an analysis list for prose texts content in the book (Arabic is my language) for the fifth grade in light of the previous readability factors by transforming main components: (word, sentence, and paragraph) to the units of analysis, and sub-factors to Analysis categories. The list was in final form consisting of (3) head units, fall under it (24) sub-category. After confirming the veracity of the list of analysis and its stability, the researcher applied it to the prose texts sample of the target book. The results showed that the availability of readability factors in prose texts from the Book (Arabic is my language) for fifth grade was high, by a percentage of (81.59) and the readability factors associated with (word) was more available factors; by a percentage of (89.18), followed by factors related to the (sentence) by a percentage of (81.92), then the factors related to the (paragraph) by a percentage of (73.68). Based on the research results, the researcher presented a set of recommendations relating to the need for taking readability factors when choosing educational texts, and the need for further studies in this field.