Efektivitas Penerapan Model Discovery Learning Terhadap Peningkatan Kemampuan Berpikir Kritis dan Penguasaan Konsep Biologi Siswa Kelas VII SMP Negeri 19 Mataram Tahun Ajaran 2015/2016

Abstract

- The school science learning activities is less to involve the students to be proactive and tends to lead them memorizing information. It has the impac to the decrease of students’ critical thinking ability and biology concept mastery. This study is aimed to know the effectiveness of using discovery learning model towards enhancement of critical thinking ability and the biological concept mastery to the students grade VII at junior high school 19 Mataram in academic year 2015/2016. The type of the research is quasi experiment.  The population here is a whole of students grade VII SMPN 19 Mataram academic year 2015/2016. The sample method used is using purposive sampling, so two classes as the sample are found in which Class VII A as an experiment group and Class VII B as a control group. In addition, an essay test is used as a tool or instrument to gauge the students’ ability in thinking critically and mastering the biological concept. Furthermore, the data research used in this study is analyzed by pooled variants t-test where ? 0,05 with the Microsoft excel 2007 assistance. The effectiveness of using discovery learning model in view of the implementation of the learning percentage reaches 100% with an average value of critical thinking skills is 75,64 and the biological concept mastery is 78,71. The research findings of critical thinking ability shows that the t account > t critic (3,5>1,99), and the data of the biological concept mastery obtained that (4,29>1,99). It means that there is a significant difference between the critical thinking ability and the biological concept mastery in the experimental group and the control group.