Penelitian ini bertujuan untuk menghasilkan perangkat pembelajaran yang layak berdasarkan aspek validitas, aspek kepraktisan yang meliputi keterlaksanaan pembelajaran, dan aktivitas siswa serta aspek keefektifan yang meliputi hasil tes keterampilan berpikir kreatif dan respon siswa. Jenis penelitian ini menggunakan penelitian pengembangan dengan model pengembangan Research and Development yang terdiri dari lima tahapan yaitu potensi dan masalah, pengumpulan data, desain produk, validasi produk dan iji coba, tetapi dalam penelitian ini dibatasi sampai pada tahap pengembangan dengan uji coba terbatas. Pengembangan Perangkat Pembelajaran di uji cobakan pada 15 siswa kelas VIII SMP Kartika IV-1 Surabaya. Uji coba menggunakan rancangan One Group pretest-posttest design. Data dalam penelitian ini diperoleh melalui hasil validasi Perangkat Pembelajaran, hasil pengamatan keterlaksanaan RPP, hasil pengamatan aktivitas siswa, hasil tes keterampilan berpikir kreatif dan hasil respon siswa. Hasil kelayakan Perangkat Pembelajaran berdasarkan aspek kevalidan menunjukkan bahwa rata-rata hasil validasi silabus, RPP, LKS, buku siswa dan soal secara berturut-turut bernilai sebesar 3.66,3.6, 3.68, 3.76, dan 3.36. Hasil kelayakan Perangkat Pembelajaran berdasarkan aspek kepraktisan yaitu hasil pengamatan keterlaksanaan pembelajaran menunjukkan bahwa Perangkat Pembelajaran sangat layak digunakan dan hasil pengamatan kreatifitas siswa menunjukkan bahwa perangkat pembelajaran layak digunakan. Hasil kelayakan perangkat pembelajaran berdasarkan aspek keefektifan yaitu hasil angket respon siswa mendapatkan skor rata-rata 89,44% dengan kriteria sangat baik dan hasil tes keterampilan berpikir kreatif siswa didapatkan melalui pretest dan posttest mendapatkan Gain 0,66 dengan kriteria sedang. Oleh karena itu, Perangkat pembelajaran dengan model PjBL untuk melatihkan keterampilan berpikir kreatif siswa layak digunakan dalam proses pembelajaran.

This study aims to produce appropriate learning devices based on the aspects of validity, practical aspects which include the implementation of learning, and student activities and aspects of effectiveness which include the results of tests of creative thinking skills and student responses. This type of research uses development research with a Research and Development development model consisting of five stages, namely potential and problems, data collection, product design, product validation and trial, but in this study limited to the development stage with limited trials. The Development of Learning Devices was tested on 15 eighth grade students of SMP Kartika IV-1 Surabaya. The trial used the One Group pretest-posttest design. The data in this study were obtained through the results of the Learning Tools validation, the results of observations of the implementation of the lesson plan, the results of observations of student activities, the results of tests of creative thinking skills and the results of student responses. The results of the feasibility of Learning Tools based on the validity aspects show that the average results of the validation of the syllabus, RPP, LKS, student books and questions are respectively valued at 3.66,3.6, 3.68, 3.76, and 3.36. The results of the feasibility of Learning Tools based on aspects of practicality, namely the results of observations of the implementation of learning show that the Learning Tool is very feasible to use and the results of observations of student creativity indicate that the learning device is worthy of use. The results of the feasibility of learning devices based on aspects of effectiveness, namely the results of student questionnaire responses get an average score of 89.44% with very good criteria and the results of student creative thinking skills tests obtained through pretest and posttest get 0.66 gain with moderate criteria. Therefore, learning tools with the PjBL model to train students' creative thinking skills are appropriate to use in the learning process.