PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) TERHADAP CRITICAL THINKING PADA MATERI PENCEMARAN LINGKUNGAN KELAS X SMA

JUNIAR, NUR ALFIAH (2025) PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) TERHADAP CRITICAL THINKING PADA MATERI PENCEMARAN LINGKUNGAN KELAS X SMA. Diploma thesis, UIN RADEN INTAN LAMPUNG.

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Abstract

ABSTRAK Pembelajaran dengan Model Problem Based Learning (PBL) merupakan suatu cara pembelajaran yang mengajarkan siswa untuk memecahkan permasalahan dalam kehidupan nyata, karna setiap siswa perlu mempelajari lingkungan nya dan mengembangkan kemampuannya sendiri. Problem Based Learning (PBL) merupakan suatu model pembelajaran yang menantang iswa untuk belajar, bekerja dalam kelompok untuk mencari solusi terhadap permasalahan. Permasalahan yang diajukan digunakan untuk membangkitkan rasa ingin tahu siswa terhadap tujuan pembelajaran. Problem Based Learning (PBL) merupakan model yang patut diterapkan dikelas karena memiliki berapa ungulan seperti pembelajaran berbasis masalah, antara lain mengajarkan siswa untuk aktif memecahkan masalah, memperdalam pemahaman terhadap masalah yang dibicarakan, pengetahuan yang telah dimiliki, merasakan manfaat pembelajaran, lebih aktif dan kritis mempunyai keinginan berdebat dan menerima pendapat orang lain, serta mampu bekerja dalam kelompok. Pembelajaran ini disajikan pada awal pembelajaran dengan tujuan melatih mereka dalam memecahkan masalah. Tujuan penelitian ini untuk mengetahui Pengaruh Model Pembelajaran Problem Based Learning (PBL) terhadap kemampuan Critical Thinking Pada Peserta didik kelas X SMA Kemala Bhayangkari. Penelitian ini menggunakan Metode Quasi. Populasi yang digunakan yaitu seluruh peserta didik kelas X SMA Kemala Bhayangkari. Sampel pada penelitian ini terdiri dari 2 kelas X SMA Kemala Bhayangkari yang berjumlah 64 peserta didik. Penelitian ini menggunakan Teknik simple random sampling. Teknik pengumpulan data yang digunakan yaitu tes soal. Hasil penelitian ini yaitu berdasarkan uji hipotesis yang telah dilakukan terlihat perolehan hasil signifikan Sehingga dapat dikatakan tedapat pengaruh penerapan model pembelajaran Problem Based Learning ( PBL) terhadap Critical Thinking Pada peserta didik kelas X SMA kemala Bhayangkari. Kata kunci : Problem Based Learning, Critical Thinking, Pencemaran Lingkungan iv ABSTRACT Learning with the Problem Based Learning (PBL) Model is a way of learning that teaches students to solve problems in real life, because each student needs to learn his environment and develop his own abilities. Problem Based Learning (PBL) is a learning model that challenges students to learn, work in groups to find solutions to problems. The problems proposed are used to arouse students' curiosity about learning objectives. Problem Based Learning (PBL) is a model that should be applied in the classroom because it has a number of advantages such as problem-based learning, including teaching students to actively solve problems, deepen their understanding of the problems being discussed, the knowledge they have, feel the benefits of learning, be more active and critical, have a desire to debate and accept the opinions of others, and be able to work in groups. This learning is presented at the beginning of learning with the aim of training them in solving problems. The purpose of this study is to determine the Effect of Problem Based Learning (PBL) Learning Model on Critical Thinking Ability in Grade X Students of Kemala Bhayangkari High School. This study uses the Quantitative Method. The population used is all students of class X of Kemala Bhayangkari High School. The sample in this study consisted of 2 classes X of Kemala Bhayangkari High School with a total of 64 students. This study uses a simple random sampling technique. The data collection technique used is a question test. The results of this study are based on the hypothesis test that has been carried out, it can be seen that significant So it can be said that the effect of the application of the Problem Based Learning (PBL) learning model on Critical Thinking in grade X students of Kemala Bhayangkari High School. Keywords: Problem Based Learning, Critical Thinking, Environmental Pollution

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