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T IPA 1402030 Abstract

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Ade Supriatna, 2016

PENINGKATAN KEMAMPUAN BERPIKIR KRITIS DAN PENALARAN SISWA SMP MELALUI MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) PADA KONSEP PEMANASAN GLOBAL Universitas Pendidikan Indonesia | repository.upi.edu | perpustakaan.upi.edu

PENINGKATAN KEMAMPUAN BERPIKIR KRITIS DAN PENALARAN

SISWA SMP MELALUI MODEL PEMBELAJARAN

PROBLEM BASED

LEARNING

(PBL) PADA KONSEP PEMANASAN GLOBAL

Ade Supriatna

Pembimbing: 1. Dr. Phil. Ari Widodo, M.Ed., 2. Prof.,Dr. Sri Redjeki, M.Pd

Program Studi PendidikanIlmu Pengetahuan Alam

SekolahPascasarjanaUniversitasPendidikan Indonesia

Abstrak

Penelitianinibertujuanuntukmenghasilkaninformasimengenaibagaimanapeningkatankema mpuanberpikirkritisdanpenalaransiswa,

sertabagaimanatanggapansiswaterhadappembelajarankonseppemanasan global melalui model pembelajaranProblem Based Learning (PBL). SampelpenelitianadalahsiswaSekolahMenengahPertama (SMP) kelas IX (Sembilan) sebanyak 220 siswa. Metodepenelitian yang digunakanyaituquasi eksperimen dengandesainpenelitianpre test – post test control group design. Instrumenpenelitian yang digunakanberupatesuraiandankuesioner.Data penelitianberupanilaipre test, post testdanN-gain, data tersebutdianalisissecarastatistikmenggunakanuji Mann-Whitney.Data tanggapansiswadianalisissecaradeskriptif.Hasilpenelitianmenunjukkan model pembelajaranProblem Based Learning (PBL)dapatmeningkatkankemampuanberpikirkritisdanpenalaransiswa.Peningkatankema mpuanberpikirkritisdanpenalaransiswa yang mengalamipembelajaranmenggunakan model Problem Based Learning (PBL)lebihtinggidanberbedasignifikandengansiswa yang mengalamipembelajarantidakmenggunakan model Problem Based Learning (PBL). Data hasilkuesionermenunjukkan 78,4 % siswamenyatakanpersetujuannyabahwa model pembelajaranProblem Based Learning (PBL) dapatmeningkatkankemampuanberpikirkritis, 77,9% siswamenyatakanpersetujuannyabahwa model pembelajaranProblem Based Learning (PBL) dapatmeningkatkankemampuanpenalaransiswa, dan 79,9% siswamenyatakanpersetujuannyabahwamodel pembelajaranProblem Based Learning (PBL)dapatditerapkanuntukpembelajarankonseppemanasan global.

(2)

Ade Supriatna, 2016

PENINGKATAN KEMAMPUAN BERPIKIR KRITIS DAN PENALARAN SISWA SMP MELALUI MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) PADA KONSEP PEMANASAN GLOBAL Universitas Pendidikan Indonesia | repository.upi.edu | perpustakaan.upi.edu

THE IMPROVEMENT OF JUNIOR SECONDARY SCHOOL STUDENTS’

CRITICAL THINKING AND REASONING SKILL THROUGH

PROBLEM BASED LEARNING (PBL) MODEL ON GLOBAL WARMING

CONCEPT

Ade Supriatna

Supervisor: 1. Dr. Phil. Ari Widodo, M.Ed 2. Prof. Dr. Sri Redjeki, M.Pd Science Education Program of Post Graduate School

UniversitasPendidikan Indonesia

Abstract

The aim of this research is to analyze how is improvement of students’ critical thingking

and reasoning skill, also their responses towards instruction of global warming concept through Problem Based Learning (PBL) model. Sample of this research consist of 9th grade of junior secondary school students as much as 220 students. Method that was used in this research is quasi experiment with pre test – post test control group design. Research data that were collected consist of pre test, post testscore and N-gain score, data were analyzed statistically through Mann-Whitney test. Students’ response data were analyzed descriptively. The result shows that Problem Based Learning (PBL) improved

students’ critical thinking and reasoning skill. The improvement of students’ critical thinking and reasoning skill that learn through Problem Based Learning (PBL) was higher and significantly different with students who did not learn through Problem Based Learning (PBL). Questionnaire data shows that Data 78,4 % of students stated their agreement that Problem Based Learning (PBL) could improve critical thinking skill, 77,9% of students stated their agreement that Problem Based Learning (PBL) could improve their reasoning skill, and 79.9% students agreed than Problem Based Learning (PBL)can be applied to instructionof global warming concept.

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