Development of Smart Snake and Ladder Media in Mastery of English Vocabulary Grade III at SDI Babussalam Pandean Durenan Trenggalek

The monotonous learning media in English vocabulary, and memorizing method make students bored, so needed innovations for these lessons, such as Smart Snake Ladder. This paper aims to develop Ladder mastering vocabulary. type of research used is R&D. results this development, showed that: (1) development the product pays attention safe appearance, modified ways playing attract user's attention, curiosity, describe theme material elementary school children. (2) smart snake ladder very valid feasible use improve vocabulary mastery, validation from experts I get a 100% validity level II 92.5%, 81.25 %, 85%, III 84.37%. (3). effectiveness using can be seen pre-test post-test data. average value 81.87 while 96.20. Apart data, it also student assessment data with an score 99.9%.