proven form conventional give classe normality validity used fcount average iii experiment model seen sample presence very addition 409332021 SENIOR OF METHOD number 444 influence PAS reg then learnt population test USING show teaching senior score question reability normal feasible ACHIEVEMENT rcount STUDENT also taught percentage SKILL meanwhile understand differentiate similar got clas 333 toward ha refusing proces perception based 717 result student school wa superior SCHOOL analysi theory medan accepting research feasibility than EXPERIMENTAL 781 both category all tcount redox TOWARD data control REDOX know reaction difference skill ttable REACTION instrument using statistic multiple MAN INFLUENCE grade purposed guidance higher distributed homogeneity achievement x2table ABSTRACT significant ftable rtable UNIMED irna post concluded pulungan PROCESS choice mean IN testing level ariani method HIGH analyzed laboratory standardized gain homogenou pre high hypothesi experimental