Optimalisasi Kemampuan Menulis Teks Deskripsi Melalui Model Project Based Learning pada Siswa Kelas X-2 SMA Taman Siswa Medan
Abstract
Studi ini merupakan penelitian berbasis tindakan kelas yang dirancang guna mendongkrak kecakapan peserta didik dalam menyusun teks bertipe deskriptif, yakni melalui penerapan model Pembelajaran Berbasis Proyek (PjBL) di kelas X-2 SMA Taman Siswa Medan selama periode akademik 2025–2026. Kondisi awal yang memprihatinkan terlihat dari data pra-siklus, di mana hanya empat dari tujuh belas peserta didik atau sekitar 23,5% yang berhasil melewati ambang batas Kriteria Ketuntasan Minimal (KKM) yang ditetapkan pada angka 70. Pelaksanaan penelitian dibagi ke dalam dua siklus, masing-masing melewati tahapan perencanaan, pelaksanaan, observasi, penilaian, dan refleksi. Pengumpulan data dilakukan lewat instrumen Lembar Kerja Peserta Didik (LKPD) berformat soal pilihan ganda sejumlah 15 butir yang diserahkan pada penghujung setiap siklus. Analisis data memanfaatkan formula normalized gain (N-Gain) serta penghitungan persentase ketuntasan secara klasikal. Siklus pertama menghasilkan rerata skor kelas 53,3 dengan ketuntasan klasikal 23,5%, sedangkan siklus kedua menampilkan lonjakan rerata menjadi 74,2 disertai ketuntasan klasikal 82,4% angka yang melampaui target keberhasilan 75%. Adapun rerata N-Gain yang diperoleh sebesar 0,49 termasuk dalam klasifikasi sedang. Hasil ini memperkuat kesimpulan bahwa implementasi PjBL, terutama bila dilengkapi dengan pemodelan teks secara eksplisit, kegiatan penilaian antar-teman yang terstruktur, serta sesi berbagi karya, terbukti ampuh dalam mengangkat kompetensi penulisan deskriptif peserta didik pada jenjang pendidikan menengah atas.
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Copyright (c) 2026 Enda Fridayanti, Annisa Aulia Rohima, Shalsa Nabilah, Tiara Ali Nasution, Mhd. Isman
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