IMPLEMENTASI MODEL INKUIRI TERBIMBING BERBASIS PERFORMANCE ASSESSMENT PADA PEMBELAJARAN FISIKA UNTUK MENINGKATKAN KETERAMPILAN BERPIKIR KRITIS PESERTA DIDIK SMA

IMPLEMENTATION OF GUIDED INQUIRY MODEL BASED ON PERFORMANCE ASSESSMENT IN PHYSICS LEARNING TO IMPROVE CRITICAL THINKING SKILLS OF HIGH SCHOOL STUDENTS

Kemampuan yang sangat penting di abad ke-21 dan harus dikuasai oleh setiap peserta didik salah satunya adalah kemampuan berpikir kritis. Tujuan dari penelitian ini mendeskripsikan keterlaksanaan, peningkatan keterampilan berpikir kritis, dan respons peserta didik setelah diberikan perlakuan dengan menerapkan model pembelajaran inkuiri terbimbing berbasis performance assessment. Jenis penelitian ini yaitu Deskriptif-Kuantitatif menggunakan metode Pre-Experimental. Desain penelitian ini menggunakan One Group Pretest-Postest Design. Instrumen penelitian yaitu lembar observasi keterlaksanaan pembelajaran, lembar tes keterampilan berpikir kritis, lembar performance assessment, dan lembar angket respons. Teknik analisis data yang digunakan yaitu analisis keterlaksanaan pembelajaran, uji-t berpasangan, perhitungan n-gain, ANAVA, dan analisis angket respons. Hasil analisis data pada keterlaksanaan pembelajaran telah dilaksanakan dengan sangat baik,  terdapat perbedaan dan peningkatan yang signifikan antara nilai pretest dan posttest, dibuktikan dengan rerata n-gain yaitu sebesar 0,74; 0,77; 0,78 serta peningkatan terjadi secara konsisten pada ketiga kelas, rata-rata persentase respons sebesar 85,4%;85,7%;86,1% dengan kategori sangat baik. Dalam penelitian ini disimpulkan bahwa keterlaksanaan pembelajaran model pembelajaran inkuiri terbimbing berbasis performance assessment telah dilaksanakan dengan sangat baik, keterampilan berpikir kritis peserta didik meningkat setelah dilakukan pembelajaran tersebut, serta ketiga kelas menerima pembelajaran dengan sangat baik dan memperoleh respons positif.

Kata kunci: performance assessment, inkuiri terbimbing, keterampilan berpikir kritis.

One of the abilities that is very important in the 21st century and must be mastered by every learner is the ability to think critically. The purpose of this study is to describe the implementation, improvement of critical thinking skills, and students' responses after being given treatment, by applying the guided inquiry learning model based on performance assessment. This type of research is Descriptive-Quantitative using the Pre-Experimental method. This research design uses One Group Pretest-Postest Design. The research instruments in this study were learning implementation observation sheet, critical thinking skills test sheet, performance assessment sheet, and response questionnaire sheet. The data analysis techniques used are learning implementation analysis, paired t-test, n-gain calculation, ANOVA, and response questionnaire analysis. The results of data analysis on the implementation of learning have been carried out very well, there is a significant difference and improvement between pretest and posttest scores, as evidenced by the average n-gain of 0.74; 0.77; 0.78 and the increase occurred consistently in the three classes, the average percentage of response is 85.4%; 85.7%; 86.1% with a very good category. In this study, it was concluded that the learning implementation of the guided inquiry learning model based on performance assessment had been carried out very well, the critical thinking skills of students increased after the learning was carried out, and the three classes received the learning very well and obtained a positive response.

Keywords: performance assessment, guided inquiry, critical thinking skills.