Abstrak: Penelitian ini bertujuan untuk mengetahui efektivitas penerapan model discovery learning terhadap hasil belajar IPA peserta didik di kelas VII SMP Negeri 14 Mataram semester genap tahun ajaran 2018/2019. Jenis penelitian ini adalah kuantitatif bersifat eksperimen semu (quasi experimental) dengan desain yaitu Nonequivalent Control Group Design. Populasi dalam penelitian ini yakni seluruh kelas VII di SMP Negeri 14 Mataram yang terdiri dari 8 kelas dan berjumlah 255 orang. Penentuan sampel penelitian menggunakan teknik cluster sampling sehingga terpilihlah 2 kelas. Penentuan kelas eksperimen dan kelas kontrol menggunakan undian sehingga terpilih kelas VII B sebagai kelas kontrol dan kelas VII A sebagai kelas eksperimen. Instrumen yang digunakan dalam penelitian adalah tes hasil belajar ranah kognitif dan dianalisis menggunakan analisis kovarian (ANAKOVA). Nilai signifikansi pada nilai posttest terkoreksi nilai pretest adalah 0,000 < 0,05. Hal ini menunjukkan bahwa nilai pretest peserta didik dan model pembelajaran yang digunakan dapat mempengaruhi nilai posttest yang diperoleh peserta didik. Berdasarkan NGain-score yang diperoleh, nilai rata-rata pada kelas eksperimen yaitu 0,4747. Sedangkan nilai rata-rata pada kelas kontrol yaitu 0,3747. Terdapat peningkatan hasil belajar yang lebih baik pada kelas eksperimen yang menggunakan model pembelajaran discovery learning dibandingkan dengan kelas yang menggunakan metode konvensional. Kesimpulan hasil penelitian menunjukkan bahwa penerapan model discovery learning efektif terhadap hasil belajar IPA peserta didik di kelas VII SMP Negeri 14 Mataram semester genap tahun ajaran 2018/2019. Abstract:The purpose of this study was to determine the effectiveness of discovery learning model application towards the science learning outcomes of students in VII grade of SMP Negeri 14 Mataram even semester of 2018/2019 academic year. The type of this study was quasi-experimental with the design was Nonequivalent Control Group Design. The populations in this study were all classes in VII grade of SMP Negeri 14 Mataram which consisted of 8 classes and the number of students was 255 people. The determination sample of this study was using cluster sampling techniques so that 2 classes were chosen. The determination of the experimental class and control class used a lottery so that class VII B was chosen as a control class and class VII A as an experimental class. The instrument that used in this study was a cognitive learning outcomes test and the test was analyzed using analysis of covariance (ANAKOVA). The significance value in the posttest which was corrected by pretest value was 0,000 <0.05. The data showed that the pretest scores of students and the learning model which was used can influence the obtained posttest scores of students. Based on the NGain score, the average of experimental class was 0.4747. Meanwhile, the average of the control class was 0.3747. There was an enhancement in learning outcomes that were better in the experimental class which was using the discovery...
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