Penelitian ini bertujuan untuk mengetahui kelayakan lembar kerja siswa (LKS) yang dikembangkan berdasarkan ahli praktisi dan respon siswa terhadap lembar kerja siswa yang dikembangkan. Jenis penelitian ini adalah uji Kelayakan dengan metode survey. Populasi dalam penelitian ini adalah siswa kelas VIII SMP Frater Don Bosco Tarakan Tahun ajaran 2023/2024 yang pernah menempuh materi sistem pencernaan makanan yaitu sebanyak 20 orang siswa dan satu orang guru mata pelajaran Biologi. Keseluruhan data diperoleh berdasarkan jawaban dari angket validasi ahli praktisi dan angket respon siswa yang disebarkan secara langsung di sekolah. Hasil penelitian ini menunjukan bahwa LKS secara keseluruhan sangat layak sebagai bahan ajar, Hal ini ditunjukkan oleh hasil validasi yang dilakukan oleh ahli praktisi dan respon siswa. LKS ini dikatakan sangat layak dengan nilai persentase 100% oleh ahli praktis dan 85% oleh respon siswa.

Kata kunci : Beras Krayan, LKS, uji Kelayakan

This research aimed to determine the feasibility of student worksheets (LKS) that were developed based on expert practitioners and student responses to the student worksheets that were developed. This type of research was a feasibility test using a survey method. The population in this study were students in class VIII of SMP Frater Don Bosco Tarakan for the 2023/2024 academic year who had taken material on the food digestive system. There were twenty students and one biology subject teacher. All data was obtained based on the responses from the practitioner validation and student response questionnaires, which were distributed directly at schools. The results of this research showed that the students' worksheets (LKS) were appropriate as teaching materials. This is demonstrated by the validation results carried out by the practitioner and the student responses. This worksheet was appropriate, with a percentage score of 100% from the practitioner and 85% from the students. Keywords: Krayan rice, students' worksheets, feasibility test