Implementasi Model Problem Based Learning Dipadu LKPD Berbasis STEM untuk Meningkatkan Keterampilan Berpikir Kritis pada Materi Pencemaran Lingkungan

Abstract

The learning process only focuses on the material by memorizing concepts, students do not use LKPD to do practical work optimally, so the biology learning process in schools does not encourage students to practice critical thinking skills. This study aims to improve students' critical thinking skills by using the PBL learning model combined with STEM-based worksheets on environmental pollution conceptin class 10th SMA Negeri Bireuen district. The approach used is experimental design, the method used is quasi-experimental, with a pretest-posttest design non-equivalent control group design. Population in class 10th IPA SMAN 1 and SMAN 2 Peusangan designed 252 people. The sampling technique used was purposive sampling technique. The research sample was 140 students. The number of samples in the experimental class was 71 people and 69 people in the control class. The instrument used was a reasoned multiple choice question accompanied by a rubric. The data analysis used was n-gain and independent t-test. The results showed that the critical thinking skills obtained was 0.93, with an increase in class critical thinking skills including the high category. The results of the independent sample t-test obtained Sig. (0,000) α (0.05) then Ha is accepted, so it is suggested that there are differences in the critical thinking skills of students between the experimental class and the control class on environmental pollution material in class X SMAN Bireuen. The implementation of PBL learning model combined with STEM-based LKPD can improve students' critical thinking skills on environmental pollution material in class 10th SMA Negeri Bireuen Regency.

Efektivitas Model Problem Based Learning Berbantuan LKPD Terhadap Hasil Belajar Muatan Pelajaran IPA

“…Melalui sintak tersebut model PBL seyogyanya dapat membangun keterampilan pemecahan masalah dan diandalkan untuk melibatkan siswa agar mandiri dan siap menghadapi setiap masalah Oktaviani & Nirmala (2018). Namun keterampilan pemecahan masalah yang dimiliki oleh siswa tidak serta merta tumbuh begitu saja pada diri siswa, sehingga dperlukan adanya media yang dapat digunakan oleh guru untuk menuntun siswa dalam memecahkan masalah dalam pembelajaran berbasis masalah (Hasanah, Pada, & Safrida, 2021;Naimah, Winarni, & Widiyawati, 2019). Salah satu media yang dapat digunakan untuk menuntutn siswa dalam pemecahan masalah adalah Lembar Kerja Peserta Didik (LKPD).…”

“…Penelitian menyatakan bahwa Efektivitas model Problem Based Learning yaitu, siswa berperan aktif dalam pembelajaran karena dihadapkan pada permasalahan yang nyata (autentik), pembelajaran bermakna, peningkatan daya ingat, belajar mandiri, dan pembelajaran berpusat pada siswa. Implikasi tersebut tentu masih memiliki beberapa kekurangan mengingat masih adanya keterbatasan pada penelitian ini (Hasanah et al, 2021). Jadi, berdasarkan jabaran-jabaran tersebut dapat dikatakan bahwa dengan adanya model Problem Based Learning berbantuan LKPD efektif dalam meningkatkan hasil belajar hal ini disebabkan oleh dengan adanya model tersebut siswa akan belajar lebih aktif serta termotivasi.…”

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“…STEM-based student worksheets received good responses from students and can be used in the learning process (Aristo & Togi, 2019). The implementation of the PBL learning model combined with STEM-based student worksheets improves students' critical thinking skills (Hasanah et al, 2021). The application of PBL combined with E-STEM-based worksheets on the cognitive learning outcomes of students, indicators of remembering, is able to improve student learning outcomes (Amalya et al, 2021).…”

The Effect of PBL-Based LPKD on Critical Thinking Skills of VII Grade Students at MTs Al Uswah Bergas on Environmental Pollution Material

“…Problem-solving, communication, creativity, invention, cooperation, and critical thinking are among the skills of the twenty-first century (Hasanah, 2021). The development of 21st century skills is possible through education.…”