Efektivitas Model Problem Based Learning Bermediakan Lembar Kerja Peserta Didik Terhadap Hasil Belajar Kimiadan Kemampuan Berpikir Kritis Peserta Didik Sma

Abstract

The aim of this research is to know the effectivenessproblem based learning model (PBL) using student worksheet on learning outcomes and students’critical thinking skills on the teaching Reaction Rate. The population in this research was grade 11th of SMA Negeri 6 Medan. Classes sample was taken by random sampling, and two classes were selected as a sample. Those two classes will be taught with Problem Based Learning model, the difference is the first class will be used students worksheets and the other class is not. The instrumentto conduct this researchwas by test and non-test. Based on parametric statistical test, the result of pretest, postest, and students’ critical thinking skills data from those two classes have a normal distribution and homogeny. Hypothesis was tested by using one tailed test with significant level ( ) =0,05. The data from hypothesis testing learning outcomes is tcal ttable (3,101 1,669), means Hois rejected and Ha is accepted. Hypothesis testing result on students’ learning outcomes using student worksheets is higher than the non-using student worksheet. Critical thinking hypothesis test is tcal ttable (4,754 1,669), means Hois rejected and Ha is accepted. Hypothesis testing result oncritical thinking using student worksheet is higher than the non-using student worksheet. Contribution of students’ critical thinking to the ups and downs of learning outcomes on the experiment class is 81,5%.

Upaya Peningkatan Pengetahuan serta Sikap Siswa melalui Pengembangan LKPD PBL Terintegrasi Literasi Lingkungan

“…Selain itu, penggunaan bahan ajar berupa Lembar Kerja Peserta Didik berbasis problem-based learning yang memuat sintaks pembelajaran berbasis masalah dapat meningkatkan keterampilan metakognisi peserta didik dalam memprediksi, merencanakan, memantau, dan mengevaluasi. Hasil ini juga diperkuat hasil penelitian Silaban et al (2021) menyatakan hasil belajar kimia siswa yang diajarkan dengan model problembased learning g dengan media LKS lebih baik daripada siswa yang diajarkan dengan model ini tanpa LKS dalam pembelajaran materi laju reaksi. Fahmidani et al (2019) menunjukkan bahwa setelah perlakuan diberikan kepada kedua kelas, post-test dengan soal esai diberikan.…”

Learning Module on Buffer Material with a CRT Approach to Solve Problem Topics in Jombang Typical Coffee Beer-Drink

“…The often-used learning does not facilitate students (Effendi & Iryani, 2023;Purwandari et al, 2022). To actively train their minds to understand essential competencies and does not foster students' curiosity about something (Silaban et al, 2021;Widyaningrum et al, 2023) Learning chemistry material, which students consider an abstract science far from being applied daily, must be corrected. Chemistry is an essential contextual science and finds many applications in everyday life (Suswati, 2021;Taofek & Agustini, 2020).…”