proven implementation classe studied there SOLUBILITY treated meeting better taught juliani coefficient result keyword student wa 375 learning medan both control mapping grade equally higher ABSTRACT significant aswita investigated topic 094 763 GUIDED model SMAN 124 remaining beginning measured study MAPPING score STUDENT clas leaarning r11 991 11th treatment reliable than measure initial tcount TOWARD TEACHING INQUIRY after catecorized EFFECTIVENESS ttable instrument irect IN possitive pretest had posttest iii sample only correlation CONCEPT OF into then teaching direct senior percentage guided last value solubility given ability improve between product metacognition PRODUCT able concept involved inquiry 125 obtained METACOGNITION done experimental used thu 312 reg test question intruction gained ACHIEVEMENT rcount also improving while school comparing averagely 893 gotten use achievement rtable 863 018 4113131034 homogenou instruction statistically high