LEMBAR KERJA PESERTA DIDIK BERORIENTASI SCIENCE, TECHNOLOGY, ENGINEERING, AND MATHEMATICS (STEM) DENGAN MODEL PjBL PADA MATERI ASAM BASA MENGGUNAKAN BAHAN ALAM

STUDENT WORKSHEET ORIENTED ON SCIENCE, TECHNOLOGY, ENGINEERING, AND MATHEMATICS (STEM) WITH PjBL MODEL ON ACID BASE MATTER BY USING NATURAL PRODUCT

Penelitian ini bertujuan untuk mendeskripsikan kelayakan LKPD yang dikembangkan dalam meningkatkan kemampuan berpikir kritis, kreatif, kolaboratif, dan komunikatif peserta didik pada materi asam basa dengan menggunakan bahan alam. LKPD yang dikembangkan mengacu pada model project based learning yang terintegrasi dengan Science, Technology, Engineering, dan Mathematics (STEM). Metode penelitian ini menggunakan model 4-D (define, design, develop dan disseminate) yang dibatasi hanya pada tahap pengembangan, dan dilakukan uji coba terbatas kepada sembilan peserta didik SMA. Kelayakan LKPD ditinjau dari tiga aspek yaitu validitas, kepraktisan, dan keefektifan. Validitas ditinjau dari hasil validitas isi dan konstruk. Hasil yang diperoleh pada masing-masing kriteria menunjukkan persentase skor 92,95% dan 91,15% pada kategori sangat baik. Kepraktisan LKPD ditinjau dari observasi aktivitas dan respon peserta didik masing-masing komponen memperoleh persentase skor 95,18% dan 88,09% pada kategori sangat praktis. Keefektifan LKPD ditinjau dari ketuntasan hasil belajar peserta didik menunjukkan adanya peningkatan rata-rata skor N-Gain sebesar 0,84 pada kategori sangat tinggi dan dinyatakan efektif. Dengan demikian, kelayakan LKPD yang dikembangkan ditinjau dari semua aspek mendapatkan persentase skor ≥ 61% pada aspek validitas, kepraktisan, dan N-gain ≥ 0,3 pada aspek keefektifan. Sehingga, LKPD berorientasi STEM model PjBL yang dikembangkan pada materi asam basa dengan bahan alam ini layak untuk digunakan dalam pembelajaran.

This study aims to describe the feasibility of the student worksheet developed in improving critical, creative, collaborative, and communicative thinking skills of students on acid-base material by using natural product. The student worksheet developed refers to the project-based learning model, which is integrated to science, technology, engineering, and mathematics (STEM). Method of this study uses a 4-D model (define, design, develop and disseminate), which is limited only to the development stage, and limited trials are carried out to nine students at senior high school. The feasibility of student worksheet is viewed from three aspects, namely validity, practicality, and effectiveness. The validity is viewed from the results of content and construct validity. The results obtained on each criterion show that the percentage score of 92.95% and 91.15% on very good category. The student worksheet's practicality in terms of activity observation and student response for each component obtained a percentage score of 95.18% and 88.09% on very practical category. The student worksheet's effectiveness in terms of the completeness of student learning outcomes showed an increase in the average N-Gain score of 0.84 on very high category and declared effective. Thus, the feasibility of the developed student worksheet in terms of all aspects such as percentage of scores obtained ≥ 61% in the aspects of validity, practicality and N-gain ≥ 0.3 in the aspect of effectiveness. So, the developed students worksheet oriented to STEM with PjBL model on acid base matter by using natural product is feasible for use in the learning.