<![CDATA[The purpose of this class action research is to, describe STAD type cooperative learning in learning science about the structure of acidic, basic and salt solutions in increasing student motivation. Describe STAD type cooperative learning in science learning about the structure of acid, base and salt solutions in increasing student motivation and learning outcomes. This research was conducted in 3 cycles. The subjects of this study were grade VII of SMP Negeri 1 Pagentan, Banjarnegara Regency in the academic year 2019/2020 with 18 boys and 19 girls. The data analysis technique used was descriptive qualitative analysis and continued reflection. The results of the study show that: (1) The application of STAD cooperative learning has been able to increase learning motivation and level of mastery learning for Grade VII students of SMP Negeri 1 Pagentan, Banjarnegara Regency (2) The application of STAD cooperative learning to increase student motivation and learning achievement in Science subject matter Natural knowledge in the material solutions of acids, bases and salts is also characterized by increased cooperation and student activity in teams (groups) and students' presentations of the results of teamwork shown in the increase in the value of observation.]]>
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