PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) BERBASIS LITERASI SAINS UNTUK MENINGKATKAN  KETERAMPILAN BERPIKIR KRITIS PESERTA DIDIK PADA MATERI ASAM BASA

DEVELOPMENT OF STUDENT WORKSHEETS BASED ON SCIENCE LITERACY TO IMPROVE STUDENTS CRITICAL THINKING SKILLS IN ACID-BASE MATERIALS

Penelitian ini bertujuan untuk mengetahui kelayakan LKPD berbasis literasi sains untuk meningkatkan keterampilan berpikir kritis peserta didik pada materi asam basa. Kelayakan LKPD berbasis literasi sains yang dikembangkan ditinjau dari aspek validitas, kepraktisan, dan keefektifan. Jenis penelitian ini menggunakan Research and Development (R&D) dengan model penelitian 4D. Model penelitian ini terdiri dari tahap define, design, dan dibatasi hingga tahap develop. Desain uji coba pada penelitian ini menggunakan one group pretest-posttest design. Validitas LKPD menunjukkan bahwa LKPD 1, 2, dan 3 pada kriteria isi mendapatkan modus 3 (valid) berturut-turut sebanyak 5, 7, dan 6 serta mendapatkan modus 4 (sangat valid) berturut-turut sebanyak 11, 9, dan 10. Pada kriteria konstruk LKPD 1 mendapatkan modus 3 (valid) sebanyak 1 dan modus 4 (sangat valid) sebanyak 10, sedangkan LKPD 2 dan 3 mendapatkan modus 3 (valid) dan 4 (sangat valid) berturut-turut sebanyak 2 dan 9. Kepraktisan LKPD ditinjau dari respon dan observasi aktivitas peserta didik yang mendapatkan persentase sebesar 97,10% dan 90% dengan kriteria sangat praktis. Keefektifan LKPD mendapat kriteria sangat efektif ditinjau dari N-gain score literasi sains sebesar 0,75 dengan kriteria tinggi dan keterampilan berpikir kritis memperoleh N-gain score pada sebesar 0,71 dengan kriteria tinggi. Hal ini didukung dengan hasil uji statistik Wilcoxon literasi sains dan keterampilan berpikir kritis diperoleh nilai sig. (2-tailed) sebesar 0,000 yang dapat diartikan bahwa terdapat perbedaan antara kemampuan literasi sains dan keterampilan berpikir kritis peserta didik sebelum dan sesudah menggunakan LKPD berbasis literasi sains, uji korelasi menunjukkan adanya hubungan kuat antara literasi sains dan keterampilan berpikir kritis dengan koefisien korelasi sebesar 0,754 dan ketuntasan klasikal mencapai 89%.

Kata kunci: LKPD, literasi sains, keterampilan berpikir kritis, asam basa

The objective of this study is to find out the feasibility of science literacy-based student worksheets to improve students critical thinking skills on acid-base materials. The feasibility of science literacy-based student worksheets developed is reviewed from the perspectives of validity, practicality, and effectiveness. This type of research is called research and Development (R&D) with the 4D research model. This research model is divided into three stages: define, design, and limit and develop. The trial design in this study used a one-group pretest-posttest design. The validity of student worksheets shows that student worksheets 1, 2, and 3 on content criteria get mode 3 (valid) as many as 5, 7, and 6, respectively, and get mode 4 (very valid) as many as 11, 9, and 10, respectively. On the construct criteria, student worksheet 1 gets mode 3 (valid) as much as 1 and mode 4 (very valid) as much as 10, while student worksheets 2 and 3 get mode 3 (valid) and 4 (very valid) as much as 2 and 9, respectively. The practicality of student worksheets is reviewed from the responses and observations of student activities, which get a percentage of 97.10% and 90% with very practical criteria. The effectiveness of the student worksheet received very effective criteria in terms of the N-gain score of science literacy of 0.75 with high criteria, and critical thinking skills obtained an N-gain score of 0.71 with high criteria. This is supported by the results of the Wilcoxon statistical test of science literacy and critical thinking skills, which obtained a sig. (2-tailed) of 0.000, which means that there is a difference between the ability of students in science literacy and critical thinking skills before and after using science literacy-based student worksheets. The correlation test shows a strong relationship between science literacy and critical thinking skills with a correlation coefficient of 0.754, and classical completeness reaches 89%.

Keywords: student worksheets, science literacy, critical thinking skills, acid base