ABSTRACT Nisa?, Syafa?atun. 2015 : ?Improving The Students? Mastery In Using Simple Past Tense Through Tic Tac Toe Game?, (A Case of Eleventh Grade of MA Al-Hidayah Jenu Tuban In Academic Year 2014/2015) Advisor : Drs. Mansur, M.Pd Key words : simple past tense, tic tac toe, game, classroom action research. Learning English involves the mastery of four language skills. They are listening, r…