Pengembangan Perangkat Pembelajaran Kimia Dengan Strategi Probex berbasis Keterampilan Berpikir Kritis
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Abstract
Keterampilan berpikir kritis siswa pada materi kesetimbangan kimia masih rendah. Pengembangan perangkat pembelajaran dengan strategi Probex merupakan upaya meningkatkan keterampilan berpikir kritis. Penelitian bertujuan (1) mengembangkan  perangkat pembelajaran yang valid (2) menguji efektivitas perangkat pembelajaran meningkatkan keterampilan berpikir, (3) memperoleh respon baik dari siswa. Jenis penelitian merupakan Research and Development. Perangkat pembelajaran dinyatakan valid apabila telah dinyatakan baik atau sangat baik oleh validator. Efektivitas peningkatan keterampilan berpikir kritis diuji berdasarkan implementasi  kelas. Peningkatan dilihat melalui perbedaan skor sebelum dan sesudah menggunakan perangkat pembelajaran. Peningkatan juga dilihat melalui lembar aktivitas keterampilan berpikir kritis di setiap pertemuan Hasil pengembangan perangkat pembelajaran telah dinyatakan valid dengan kategori sangat baik. Perangkat pembelajaran mampu meningkatkan keterampilan berpikir kritis dari skor 20,92 menjadi 60,28. Keterampilan berpikir kritis meningkat di setiap pertemuan. Angket respon siswa terhadap pembelajaran sangat baik. Siswa memberikan respon sangat baik. Hasil ini menunjukkan perangkat pembelajaran teruji efektif. Simpulan yang diperoleh (1) perangkat pembalajaran yang dikembangkan valid (2) perangkat pembalajaran teruji efektif untuk meningkatkan keterampilan berpikir kritis, (3) respon siswa terhadap pembelajaran sangat baik.
Kata Kunci : Keterampilan Berpikir Kritis; Pengembangan perangkat; Probex
Students’ critical thinking skills of chemical equilibrium still low. The development of chemical equilibrium learning device use Probex strategy is effort to improve critical thinking. Study aims (1) develop learning device valid (2) effectiveness of the learning device in enhance critical thinking, (3) obtain positive response from the students to the learning device. This research type is kind of Research and Development. Learning device is valid if has been declared good or very good by experts team. Effectiveness of the enhance in critical thinking skills tested by implementation in classroom. Enhance seen through difference in scores before and after ​​using learning device. Enhance also seen through critical thinking skill in every meeting. The results of product development learning device, declared valid by expert team. Learning devices can enhance critical thinking skills from score 20.92 into 60.28. Students responses to learning is also very good. Critical thinking skill enhanced in every meeting. All students responded very well. This results show that the device is tested effective learning. The conclusions obtained in this stud,  (1) Lesson device product is developed valid, (2) Lesson proven effective for improving critical thinking skills, (3) students' response to lesson device very good and positive.
Keywords : Critical Thinking Skills; Developing Learning Device; Probex
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