مدى توافق محتوى الجبر في كتب الرياضيات المدرسية للمرحلة الأساسية في الأردن مع المعايير الوطنية (nctm , 2014)
The aim of this study is to determine the compatibility of algebra content in the mathematics books for grades 9 and 10 in Jordan with national standards (NCTM, 2014) To achieve the objective of the study follow the researcher in conducting this study descriptive analytical method, in order to achieve the objectives of the study, followed by the field of variables patterns in conjugations, And to answer her questions, the researcher chose the sample of the analysis in a way that included all the topics of algebra included in the mathematics books for the ninth and tenth grades of the basic stage of the Ministry of Education in Jordan in the academic year 2016/2017 .Where the following results were shown: In the ninth grade book, The most consistent subject to national standards is the field of algabra , Third order is the field of conjugal representation, characteristics and encodings ، Followed by in the fourth order categories and types of conjugations, Followed by the field of historical development and viewpoint in algebra. While in the book of the tenth grade, the most subjects in line with national standards are the blogging of algebra Followed by categories and types of conjugations, followed by variables patterns in conjugations, followed by conjugation, properties and encodings, The last order was historical development and viewpoints. (Author’s abstract)