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The objectives in this research are : (1) To know whether is any difference the average of biology instructional by using model of cooperative learning STAD and NHT type. (2) To know which one more high the average of biology instructional by using model of cooperative learning STAD and NHT type. This research was conducted at the seventh grade of junior high school SMP N 1 Batanghari academic year 2011/2012. The sample of the reearch is VIIc and VII E from five classes using cluster randomdoi:10.24127/bioedukasi.v5i1.257 fatcat:2fa4kjs2ivgzbczqj4dkqitx2e