The study aims to describe and analyze the educational curriculum and its foundation in the book "Tajdidu an-Nahwi" written by Sauqi Dhaif and to show the difference between the book and "nahwu" used in some schools and boarding schools. This study is a descriptive literature study, and researchers use documentation methods to collect data about "nahwu". Researchers use content analysis methods to analyze data. The main source of this research is from books written by Sauqi Dhaif, especially his book Tajdid an-Nahwi. Secondary sources in this study are indicative books containing the opinions of Sauqi Dhaif and those related to this study. This research indicated two results 1)The approach of the book "Tajdidu an-nahwi" is the nahwu approach and uses the qiyasiyah method in its presentation, basing its authorship on six foundations: reformatting nahwu themes, eliminating I'rab mahali and taqdiri, eliminating deep understandings, removing some unnecessary chapters and adding chapters th.....

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