Pengaruh Model Pembelajaran Generatif Berbasis PhET Terhadap Keterampilan Berpikir Kritis dan Motivasi Belajar Siswa pada Materi Gelombang

Cut Luthfia Harum, Muhammad Syukri, Yusrizal Yusrizal, Cut Nurmaliah

Abstract


Abstrak. Peranan ilmu fisika dalam proses pembelajaran agar siswa dapat menumbuhkan keteramplan berpikir kritis dalam memecahkan persoalan sehari-hari. Penerapan pembelajaran fisika yang menarik akan meningkatkan motivasi belajar siswa. Tujuan dalam penelitian ini adalah untuk mengetahui pengaruh model generatif berbasis PhET dalam pembelajaran fisika terhadap keterampilan berpikir kritis dan motivasi siswa pada materi gelombang. Metode yang digunakan dalam penelitian ini berupa quasi experiment. Populasi dalam penelitian ini adalah siswa kelas XI MIA yang berjumlah 227 siswa, sedangkan teknik pemilihan sampel berupa purposive  sampling. Teknik ini ditentukan berdasarkan nilai akhir ujian yang dimuliki oleh setiap kelas, kemudian membandingkan untuk memilih kelas yang memiliki hasil belajar dengan nilai rata-rata yang sama. Sampel dalam penelitian terdiri dari dua kelas yaitu siswa kelas XI MIA 2 berjumlah 33 siswa dan XI MIA 5 yang berjumlah 34 siswa. Prosedur pengumpulan data menggunakan soal KBK dan angket motivasi. Teknik analisis data dilakukan menggunakan uji t test dan rumus persentase. Hasil penelitian menunjukkan bahwa keterampilan berpikir kritis siswa melalui model pembelajaran generatif berbasis PhET diperoleh N-gain KBK 1 sebesar 0,55 atau 55% kriteria sedang, KBK 2 sebesar 0,63 atau 63% kriteria sedang, KBK 3 sebesar 0,73 atau 73% kriteria tinggi, KBK 4 dan KBK 5 sebesar 0,60 atau 60% kriteria sedang, selanjutnya KBK 6 sebesar 0,71 atau 71% kriteria tinggi. Motivasi siswa melalui penerapan model pembelajaran generatif pada keempat indikator termasuk dalam kategori setuju. Hasil dari keempat indikator terdiri dari perhatian pembelajar diperoleh 4,23, membangun relevansi 4,17, kepercayaan diri 4,15 dan kepuasan 4,21.Kesimpulan dalam penelitian ini adalah model generatif berbasis PhET dapat meningkatkan keterampilan berpikir kritis siswa dan motivasi belajar siswa menjadi lebih baik.

Kata Kunci:Model Generatif, PhET, Keterampilan berpikir Kritis, dan Motivasi

 

Abstract. The role of physics in the learning process so that students can develop critical thinking skills in solving everyday problems. The interesting application of physics learning will increase student motivation. The purpose of this study was to determine the effect of the PhET-based generative model in physics learning on critical thinking skills and student motivation on wave material. The method used in this research is quasi-experimental. The population in this study were 227 XI MIA students, while the sample selection technique was purposive sampling. The sample in this study consisted of two classes, namely students of class XI MIA 2 totaling 33 students and XI MIA 5 totaling 34 students. Data collection procedures using KBK questions and motivation questionnaires. The data analysis technique was performed using t test and percentage formula. The results showed that students' critical thinking skills through generative learning models based on PhET obtained N-gain KBK 1 of 0.55 or 55% moderate criteria, KBK 2 of 0.63 or 63% moderate criteria, KBK 3 of 0.73 or 73 % high criteria, KBK 4 and KBK 5 are 0.60 or 60% criteria are medium, then KBK 6 is 0.71 or 71% high criteria. Student motivation through the application of generative learning models to the four indicators included in the agreed category. The results of the four indicators consisting of student attention were obtained 4.23, building relevance 4.17, confidence 4.15 and satisfaction 4.21. The conclusion in this study is that the generative model based on PhET can improve students 'critical thinking skills and students' motivation to learn better. 

Keywords: Generative Models, PhET, Critical Thinking Skills, and Motivation


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DOI: https://doi.org/10.24815/jpsi.v8i2.15776

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