The purpose of this research to determine the difference in learning outcome and interest of students on chemistry learning between class which applied snowball throwing and class which applied talking stick learning model on nomenclatur of chemical compounds material in curriculum-2013 of grade X IPA in SMA Negeri 10 Bengkulu City. Research conducted is a research with the type of quasi experiment. Analysis of the data used are mean values, normality test, homogeneity test, and t-test. Chemistry learning outcome data obtained pretest and posttest value where average improvement value of cognitive learning result for snowball throwing class and talking stick class are 56,970 and 45,606. While the interest of students learning of both experiment classes procure percentage are 81,567% and 75,373%. The result of t test with significant level (? = 0,05), then got value for tcount >ttable is 4,734 > 1,669 for learning result and 3,596 > 1,669 for interest learning. The results showed that there were significant differences in learning outcomes and learning interest between classes that applied snowball throwing learning and classes that applied the talking stick learning model.
Lembar kerja siswa atau LKS khususnya pada materi menulis teks persuasi yang digunakan guru masih berorientasi pada teks sehingga siswa kesulitan memahami materi secara kontekstual. Untuk itu, penelitian ini bertujuan untuk mengembangkan LKS menulis teks persuasi berbasis kontekstual siswa Kelas VIII SMP Ar-Risalah Lubuklinggau. Penelitian ini merupakan jenis penelitian Research and Development dengan menggunakan model Dick & Carey. Teknik pengumpulan data menggunakan teknik wawancara, kuesioner, dan tes. Teknik analisis data untuk uji efektivitas menggunakan SPSS versi 20. Hasil penelitian menunjukkan bahwa LKS menulis teks persuasi berbasis kontekstual Siswa Kelas VIII SMP Ar-Risalah Lubuklinggau yang dikembangkan valid, praktis, dan efektif sehingga layak digunakan oleh guru bahasa Indonesia sebagai salah satu bahan ajar untuk mencapai tujuan pembelajaran menulis teks persuasi. Kemudian, hasil uji efektivitas produk menunjukkan bahwa penggunaan LKS menulis teks persuasi berbasis kontekstual mampu meningkatkan kemampuan menulis persuasi siswa.
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