Penelitian ini bertujuan untuk menghasilkan lembar kegiatan peserta didik (LKPD) berbasis guided inquiry pada materi transpor membran untuk melatihkan keterampilan proses sains terintegrasi yang valid, praktis, dan efektif. Penelitian ini menggunakan model pengembangan 4D (define, design, develop, and disseminate) tanpa disseminate. LKPD diujicobakan kepada 20 peserta didik kelas XI SMA Muhammadiyah 1 Taman. Metode pengumpulan data yang digunakan yaitu metode validasi, metode observasi keterlaksanaan, metode tes, dan metode angket. Analisis data berupa deskriptif kualitatif dan kuantitatif. Hasil penelitian menunjukkan bahwa LKPD yang dikembangkan dinyatakan sangat valid dengan skor rata-rata validasi 3,87. Kepraktisan LKPD ditinjau dari observasi keterlaksanaan LKPD mendapatkan rata-rata skor kepraktisan 87,67% dengan kategori sangat praktis. LKPD dinyatakan sangat efektif ditinjau dari hasil ketercapaian keterampilan proses sains terintegrasi sebesar 80,6% dengan N-gain 0,60 dan respons positif peserta didik dengan persentase 96%. Berdasarkan hasil penelitian dapat disimpulkan bahwa LKPD berbasis guided inquiry pada materi transpor membran telah memenuhi aspek validitas, kepraktisan, dan keefektifan sehingga layak digunakan dalam proses pembelajaran.
Kata Kunci : LKPD, guided inquiry, keterampilan proses sains terintegrasi, transpor membran
This research was aimed to produce a valid, practice, and effective student worksheet based on guided inquiry for transport membrane topic to train integrated science process skill. The development was reffered to 4D (define, design, develop, and disseminate) method without disseminate. The developed student worksheet was implemented to twenty 11th grade students of Senior High School Muhammadiyah 1 Taman. The observed method were validity method, observation of student worksheet implementation, test method, and questionaire method. Data was analyzed with qualitative and quantitative descriptive. The result of this research showed that the developed student worksheet was proved completely valid with validation score 3,87. The student worksheet practicality determined from the student worksheet implementation that gained the average of practicality score 87,67% with very practice category. The developed student worksheet was stated completely effective which determined from the achievement result of science process skill and student positive response. The achievement result of science process skill gained score 80,6% with an N-gain 0,60. Besides, the student positive response had score percentage 96%. Based on these result, it can be concluded that the student worksheet were valid, practice, effective and worthy to be used in the learning proccess.
Key words : Student worksheet, guided inquiry, integrated science process skill, transport membrane