ABSTRACT BAIHAQI AHMAD, 2017 : The Use of Circle Games as A Strategy to Improve The Student?s Mastery in English Vocabulary at Six B Grade of SSC Tuban Advisors : Risa Triassanti, M.Pd and Adria Rosy S, A.Par, M.Pd Key words : Circle games, Vocabulary, Teaching strategy, Mastery Tis research is conducted to analyze circle games as a strategy to improve the student?s mast…