Journal Corner of Education, Linguistics, and Literature (JCELL) Vol. 1 No. 4 (May, 2022), p. 216-226 https://doi.org/10.54012/jcell.v1i4.45 216 The Development of Smart Snake and Ladder Media in Mastery of English Vocabulary Grade III at SDI Babussalam Pandean Durenan Trenggalek Uswatun Kasanah 1 , Muhamad Zaini 2 , Nur Efendi 3 , Adi Wijayanto 4 , Eni Setyowati 5 1 2 3 4 5 State Islamic University of Sayyid Ali RahmatullahTulungagung, Jawa Timur, Indonesia  email: uswatunkasanah1905@gmail.com Received: 24 January 2022 ABSTRACT The monotonous learning media in English vocabulary, and memorizing method make students bored, so needed media innovations for these lessons, such as Smart Snake and Ladder. This paper aims to develop learning media Smart Snake and Ladder in mastering English vocabulary. The type of research used is R&D. The results of this research and development, showed that: (1) The development of the Smart Snake and Ladder media product pays attention to the safe appearance, and modified ways of playing to attract the user's attention, curiosity, and describe the theme material for elementary school children. (2) The development of smart snake and ladder media is very valid and feasible to use to improve English vocabulary mastery, as the validation results from material experts I get a 100% validity level and material II experts get 92.5%, media experts I 81.25 %, media experts II 85%, and media experts III 84.37%. (3). The effectiveness of using smart snake and ladder media can be seen from the pre-test and post-test data. The average value of the pre-test is 81.87 while the average value of the post-test is 96.20. Apart from the pre-test and post-test data, it can also be seen from the student assessment data with an average score of 99.9%. Keywords: Development Media; Islamic Elementary School; Smart Snake and Ladder; Vocabulary Revised: 02 February 2022 Accepted: 02 February 2022 Published: 05 February 2022 INTRODUCTION The government has implemented improvements to improve the quality of education at various types and levels. However, the facts on the ground have not shown satisfactory results. This condition can be seen in the quality of education in Indonesia today. Improving and developing the quality of education is a problem that demands attention, so it is necessary to improve the curriculum. Curriculum improvement is a common thing to improve the quality of a country's education. Likewise, to improve the quality of national education, one way to do that can be done by evaluating and updating the national education curriculum. Reforming a curriculum aims to make students smart, moral, creative, communicative, and tolerant in religious life. In the educational process, especially education in schools, actually not only curriculum improvement, but learning is the most basic activity.