In this research, the researcher designed the nahwu rules material and its delivery method to improve the grammatical abilities of students in the first two-level madrasah diniyah Sabilurrosyad, Gasek, Malang. And the design of this book uses one of the books used in the Islamic boarding school, namely kitab al-mabadi ?al-fiqhiyyah part three, because the language used is easy. This study uses the RnD (Research and Development) method with a model from Dick and Carey. The results showed that: 1) A study book which produced ?al-qawaid at-tathbiqiyyah bit thariqah al-muaddalah? (applicable rule with the modified method) has the following elements: (1) introduction, (2) book usage instructions, (3) KI and KD, (4) discussion of learning. 2) Results of table t shows that the use of books developed by researchers is effective. ????????: ???? ?????? ?? ??? ????? ???? ??????? ??????? ?????? ?????? ?????? ????? ???????? ??? ???? ????? ?????? ?? ??????? ???? ?????? ??????? ??????? ???? ???????? ??? ????? ????????? ?? ?????? ??? ???? ??????? ??????? ????? ??????? ??? ????? ????????? ????. ?????? ????? ???? ????? ???????? (Research and Development) ??? ????? ??? ?????? (Dick and Carey). ???? ????? ??? ????? ??? ??: 1) ?????? ?????? "??????? ????????? ???????? ???????" ????? ??: (?) ???????? ?(?) ???? ??????? ??????? ?(?) ????? ??????? ? ??????? ????????? ?(?) ??????? ?????????. 2) ??? ????? ?t? ???????? ?? ??????? ???? ??????? ????????? ???????? ??????? ???? ???? ?????? ???? ?? ????? ????? ?? ????? ???????.??????? ????????: ??????? ???????; ??????? ???????; ??????? ???????