<![CDATA[Abstract. The reasearch problem at lack of teacher’s ability to choose suitable method and media with abstract character of electron configuration and element periodic system, cause of low level students comprehension and learning achievement. It needs inovation in learning by using simulation method by assistance of electron configuration charging and discharging media. The result of research prove that simulation method by assistance of electron configuration charging and discharging media is able to increase students activities increase from medium to very good, social skill from good to very good, also teacher activity is increase from good enough to very good. It also influence to students learning achievement in class XI IPA MAN 2 Paringin , at the beginning, students ability level at pre test only 34,40%, 64,80% at first cycle and 81,64% at second cycle and classical completeness from first to second cycle increase from 70% to 100%, student’s intrest in very good category in learning process.Keywords : activity, electron configuration charging and discharging media, learning achievement, simulation method, social skill]]>
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