scholarly journals THE DEVELOPMENT OF PROBLEM-BASED LEARNING MODEL IN TROUBLESHOOTING TO ENHANCE STUDENTS’ CRITICAL THINKING SKILLS AT AUTOMOTIVE PROGRAM OF SENIOR VOCATIONAL SCHOOL

EDUTECH ◽  
2015 ◽  
Vol 14 (2) ◽  
pp. 197
Author(s):  
Suryana Iskandar

Abstract. The This topic has been proposed based on the condition that the competitive ability of SMK graduates in automotive field was lower than the current need job market. According to (Global Competitiveness Report 2010-2011:15 ) the condition of Competitiveness of Indonesia today is on the 44th rank out of 132 countries in the world and still below countries in the ASEAN region. One of the skills needed by learners in facing the tight competition is the critical thinking to solve a problem. This competence has not been reached, because the model of teaching implemented by the teachers today is still conventional. The research has been conducted to find the answer of the question : What kind of learning model that could improve students ' critical thinking skills in vocational subjects of vocational competence Light Vehicle Engineering? The method used in accordance with the objective is the Research and Development model. The Research and development is a type of research that combines qualitative and quantitative research. The qualitative research used for the analysis of the results of preliminary studies while quantitative used as the validation and testing of the model used the t test by using SPSS version 13, to determine which group is more or whether there is no difference between the two groups.The population used in this study is SMK in Bandung. The study samples was taken purposively are two kinds of international school and vocational education of the National Standard of Competence on Light Vehicle Engineering( Specialisation ) located in Bandung. The subjects are the students of Light Vehicle Engineering skill program in SMKN 6 Bandung class XI, SMKN 8 Bandung, and students of class XI of SMK Merdeka Bandung. The result of the validation shows a 95% confidence level or with α 5% to reject H0. This means that there are significant differences between groups of data on the starter post test of experiment group and control group. This shows there is an increased competence to think critically of the students of Automotive Vocational Skills Program with learning problem-solving model called troubelshooting.Keywords : Light Vehicle, Critical thinking, Problem solving troubleshooting, Vocational High School.Abstrak. Latar belakang penelitian dilandasi oleh suatu keadaan kurangnya kemampuan daya saing lulusan di pasar kerja dibandingkan dengan laporan Global Copetitiveness Report 2010-2011:15) berada pada urutan ke 46 dari 132 negara di dunia dan masih di bawah negara ASEAN. Kurangnya kemampuan daya saing ini, salah satunya disebabkan oleh rendahnya kemampuan berpikir kritis untuk memecahkan suatu masalah yang dibutuhkan di dunia kerja, karena pembelajaran yang dilakukan pendidik cenderung masih konvensional. Rumusan masalah pada penelitian ini adalah Model pembelajaran yang bagaimana yang dapat meningkatkan kemampuan berpikir kritis peserta didik SMK pada mata pelajaran kompetensi kejuruan Teknik Kendaraan Ringan? Tujuan Penelitian adalah untuk menemukan model pembelajaran yang dapat mengoptimalkan kemampuan berpikir kritis dalam memahami pengetahuan mata pelajaran kompetensi kejuruan Teknik Kendaraan Ringan sehingga mereka mampu memecahkan masalah pada pekerjaannya. Metode penelitian yang digunakan adalah Research and Development dan pendekatannya menggabungkan antara penelitian kualitatif dan kuantitatif. Penelitian kualitatif digunakan untuk menganalisis hasil studi pendahuluan sedangkan kuantitatif digunakan untuk validasi dan pengujian model dengan teknik analisis uji U-test dan uji T-test dan pengerjaannya dibantu dengan program SPSS versi 13.Populasi yang digunakan dalam penelitian ini adalah SMK yang ada di Kota Bandung, sedangkan penetapan sampel digunakan secara purpossif, yaitu SMK RSBI (SMKN 6) dan SMK Bertaraf Nasional yang menyelenggarakan pendidikan Kompetensi Kejuruan Teknik Kendaraan Ringan, terdiri dari dua klasifikasi, yaitu SMKN 8 Bandung dan SMK Swasta Merdeka Bandung. Hasil validasi menunjukan dengan taraf kepercayaan sebesar 95% ternyata H0 ditolak, berarti terdapat perbedaan yang signifikan antara kelompok data starter dan pengisian post test pada kelompok Eksperimen dan kelompok control. Hasil penelitian ini diperoleh model Pembelajaran Pemecahan Masalah troubleshooting dapat meningkatkan kemampuan berpikir kritis peserta didik SMK Program Keahlian Otomotif.Kata kunci: Kendaraan Ringan, Berfikir kritis, Pemecahan masalah troubleshooting, SMK.

Author(s):  
Tri Sutrisno

Abstrak: Penelitian ini bertujuan untuk menilai pengaruh penggunaan model problem based learning untuk keterampilan berpikir kritis dalam kewarganegaraan tentang sistem pemerintahan. Objek penelitian ini adalah kelas VI SDN Kolor II Sumenep. Termasuk 2 kelas yang digunakan dalam penelitian ini meliputi, kelas VIA SDN Pajagalan sebagai percobaan kelas I, VI A sebagai kelompok eksperimen dan kelompok kontrol VIB SDN Kolor II. Tes kelas yang dimaksudkan adalah kelas yang digunakan untuk menguji instrumen yang akan digunakan untuk mengambil data keterampilan berpikir kritis siswa. Pendekatan penelitian kuantitatif ini, syarat-syarat nilai perolehan kemampuan tes untuk skor keterampilan berpikir kritis atau nilai-nilai dijumlahkan dan dianalisis menggunakan t-test dua sampel independen. Pada validitas tes diperoleh hitungan ≥ r r - kritis (0,349), instrumen tersebut valid dan dapat digunakan. Dalam pengujian andal hitung r> r kritis (0,60), yaitu nilai Alpha 0,966 yang berarti lebih besar dari 0,60. Dengan demikian seluruh instrumen barang bisa diandalkan. Hasil pengujian hipotesis dapat dilihat dari data yang telah dianalisis dengan t 3,730> t-tabel 2,00 (α = 0,05). Dapat disimpulkan bahwa probabilitas kesalahan dalam penelitian ini masih di bawah 0,05. Pengujian hipotesis dapat diputuskan, bahwa dengan harga tinggi 3,730 t-test memiliki tingkat signifikansi 0,000, yang ternyata posisinya masih jauh di bawah nilai α = 0,05. Oleh karena itu penelitian ini berhasil menolak H0 pada tingkat signifikansi 5%. Lebih lanjut, dapat disimpulkan bahwa H1 terbukti benar. Berarti dalam kelompok eksperimen pretest posttest kelompok eksperimen adalah 54,38 adalah 74,38. Sedangkan rata-rata kelompok kontrol pretest adalah 51,94. Grup postes adalah 66,94. Ini adalah bukti bahwa terjadi peningkatan pada kelas eksperimen yang telah diberi perlakuan dengan model problem based learning. Dengan demikian kita dapat menyimpulkan kemampuan keterampilan berpikir kritis siswa dalam kelompok eksperimen lebih tinggi daripada kelompok kontrol. Model problem based learning berpengaruh positif terhadap kemampuan siswa untuk keterampilan berpikir kritis.Kata kunci: Model Problem Based Learning, Kemampuan Berpikir KritisAbstract: This study aims to assess the effect of the use of problem solving based learning model for critical thinking skills  in civics about the system of goverment. Object of this research is a class VI  SDN Kolor II Sumenep. Includes 2 classes used in this study include , VIA SDN Pajagalan class as a class I trial, VI A as an experimental group and a control group VIB SDN Kolor II . Class tests are intended class is used to test the instruments to be used to retrieve data critical thinking skills of students. This quantitative research approaches , the terms of the acquisition value of the test 's ability to critical thinking skills scores or values are summed and analyzed using t-test two independent samples. On the validity of the test obtained count ≥ r r - critical ( 0.349 ), the instrument as valid and can be used. In the test reliably count r > r critical ( 0.60 ) , namely Alpha value of 0.966 which means greater than 0.60. Thus the entire item instrument is reliable. Results of hypothesis testing can be seen from the data that has been analyzed by t 3.730 > t-table 2.00 (α = 0.05). It can be concluded that the probability of error in this study still below 0.05. Hypothesis testing can be decided, that with the high price of 3.730 t-test has significance level of 0.000, which turned out to be his position is still far below the value of α = 0.05. This study therefore managed to reject H0 at significance level of 5 % . Furthermore, it can be concluded that the H1 was proved right. Mean in the experimental group pretest posttest experimental group is 54.38 is 74.38. While the control group mean pretest is 51.94. Postes group is 66.94. This is evidence that an increase in the experimental class that has been given treatment with problem solving-based learning model. Thus we can conclude critical thinking skills  abilities of students in the experimental group was higher than the control group. Problem solving-based learning model a positive effect on students' ability tocritical  thinking skills.Keywords: Problem Based Learning Model, Critical Thinking Skills


2017 ◽  
Vol 2 (2) ◽  
pp. 132
Author(s):  
Evi Apriana ◽  
Anwar Anwar

Penelitian ini bertujuan untuk mengetahui peningkatkan kemampuan berpikir kritis mahasiswa melalui penerapan model pembelajaran Problem Based Learning (PBL) dan Inkuiri pada konsep dampak pencemaran lingkungan terhadap kesehatan, menggunakan metode eksperimen dengan rancangan Statistic group pretes-postes design. Populasi dalam penelitian ini adalah mahasiswa Fakultas Kesehatan Masyarakat Universitas Muhamadiyah Aceh. Kelas pertama dibelajarkan dengan model pembelajaran PBL dan kelas kedua dibelajarkan dengan model pembelajaran Inkuiri. Analisis data tentang model pembelajaran PBL dan Inkuiri terhadap peningkatan kemampuan berpikir kritis mahasiswa. Data penelitian diuji dengan t-test, menggunakan program statistik software komputer. Hasil penelitian menunjukkan nilai kemampuan berpikir kritis pada model pembelajaran PBL dan Inkuiri dengan t-hitung > t-tabel (3,20 > 2,00), dengan nilai postest mean PBL = 72,25 dan mean Inkuiri = 81,00. Maka dapat disimpulkan bahwa terdapat peningkatan kemampuan berpikir kritis mahasiswa pada model PBL dan Inkuiri. Kata Kunci: Model Pembelajaran Problem Based Learning, Inkuiri, Kemampuan Berpikir Kritis, dan Pencemaran Lingkungan This study aims to determine the improvement of students' critical thinking skills through the application of the Problem Based Learning (PBL) and Inquiry on the concept of the impact of environmental pollution on health, using experimental methods to design pretest-posttest Statistic group design. The population in this study were students of the Faculty of Public Health, University of Muhammadiyah in Aceh. First class learned with PBL learning model and the second class learned with inquiry learning model. Analysis of data on PBL and inquiry learning model to increase students' critical thinking skills. Data were tested by t-test, using a statistical software program computer. The results show the value of critical thinking skills in the PBL and inquiry learning model with t count> t-table (3.20> 2.00), with a mean post-test score and the mean PBL = 72.25 and mean Inquiry = 81.00. It can be concluded that there is an increase in students' critical thinking skills and inquiry PBL model. Keyword: Learning Model of Problem Based Learning, Inquiry, Critical Thinking Skills, and Environmental Pollution


2021 ◽  
Vol 2 (2) ◽  
pp. 62-75
Author(s):  
Nurhaningtyas Agustin ◽  
Lafifatun Ni’mah

Mathematics is one of the subjects that trains students to think critically, logically, analytically, systematically, and creatively. One of the regulations of the Minister of Nation Education No.23 of 2006 years, about “graduate competency standards” is to have the ability to cooperate. One way to develop students’s critical thinking skills is to apply student oriented learning with open learning, Open Ended. The method in this study is an experimental method by applying an Open Ended learning model. The purpose of this study was to obtain data or information about the influence and general picture of students critical thinking skills after the application of Open Ended learning in teaching and learning in the classroom. In addition to get an overview of students respones to the application of Open Ended. This study took the population class V MI Al-Falahiyah Kedungrejo-Kerek-Tuban lesson years 2019/2020. This study uses the population as a score of data because the number of students studied is less than 100 students. Namely fifth grade students, amuting to 20 students. The instruments used as data collection were questionnaires and test of mathematical critical thinking skills in fraction subjects. The statistical test used was a t-test with a pre test and post test one group design. Students whos responded to learning with who Open Ended model with a score range’s of 25-27by 10%, a range scores of 28-30 by 15%, a range scores 31-33 by 30%, a range scores of 34-36 by 15%, and 37-39 by 30%. With 11 students who responded well, and 9 students who responded very good, to the Open Ended learning model. Hypothesis test results with the t-test t hitung >  t tabel (2,109>2,029). While the average value of students mathematic critical thinking ability of students is categorized as moderate or sufficient.


2021 ◽  
Vol 14 (1) ◽  
pp. 53-68
Author(s):  
Rita Saekawati ◽  
Harun Nasrudin

This research aims to examine the effectiveness guided inquiry learning model based on blended learning on reaction rate material to improve students' critical thinking skills. The design in this research is the One Group Pretest and Posttest Design. The subjects in this research were students of SMAN 1 Kalitidu Bojonegoro in class XI IPA 1. The method used to collect data was the test, observation, and student response questionnaires. Data analysis used the percentage, mean, N-Gain, and Paired sample t-test. The results showed that the guided inquiry learning model based on blended learning was carried out well with an average percentage of the implementation of phase 1 was 98%, phase 2 was 93.76%, phase 3 was 100%, phase 4 was 93.75%, phase 5 was 100%. The average score of the N-gain critical thinking skills is 0.73 with the high category. There is a significant difference in the results of critical thinking skills between before and after being given a guided inquiry learning model based on blended learning. The results showed the guided inquiry learning model based on blended learning effectively improving students' critical thinking skills. Efektivitas Inkuiri Terbimbing Berbasis Blended Learning dalam Meningkatkan Keterampilan Berpikir KritisPenelitian ini bertujuan untuk menguji keefektifan model pembelajaran inkuiri terbimbing berbasis blended learning pada materi laju reaksi dalam meningkatkan keterampilan berpikir kritis peserta didik. Design pada penelitian ini adalah One Group Pretest and Posttest Design. Sasaran dalam penelitian ini yaitu peserta didik XI IPA 1 SMA Negeri 1 Kalitidu Bojonegoro. Metode pengumpulan data yang digunakan berupa tes, observasi dan angket respon. Analisis data menggunakan teknik persentase, mean, n-gain, dan uji Paired Sample T-test. Hasil penelitian menunjukkan bahwa model pembelajaran inkuiri terbimbing berbasis blended learning terlaksana dengan baik dengan rata-rata persentase keterlaksanaan fase 1 sebesar 98%, fase 2 sebesar 93,76%, fase 3 sebesar 100%, fase 4 sebesar 93,75%, fase 5 sebesar 100%. Nilai rata-rata N-gain kemampuan berpikir kritis adalah sebesar 0,73 dengan kategori tinggi. Terdapat perbedaan hasil keterampilan berpikir kritis yang signifikan antara sebelum dan sesudah diberikan model pembelajaran inkuiri terbimbing berbasis blended learning. Hasil penelitian menunjukkan bahwa model pembelajaran inkuiri terbimbing berbasis blended learning efektif untuk meningkatkan keterampilan berpikir kritis peserta didik.


2018 ◽  
Vol 2 (2) ◽  
pp. 124-132
Author(s):  
Mesia Dewi Hasanah ◽  
Heffi Alberida ◽  
Yosi Laila Rahmi

Implementation of Curriculum 2013 requires students to learn actively, independently, and critical thinking. Critical thinking is an activity through thinking about ideas related to concepts or problems. The efforts to improve critical thinking skills of learners can be done by using the appropriate learning model. One of the learning models that can be used to improve the ability of critical thinking is a problem-based learning model. This type of research is quasi experiment with randomized control-group pretest posttest design. The sample of this research choosed by used purposive sampling method. Class VIII6 as experimental class and class VIII4 as control class. Data of this research result are quantitative data of critical thinking ability. Data were analyzed by using t test. The results showed that the mean difference of posttest value with pretest value of critical thinking ability of experimental class learners is higher than control class. Hypothesis testing with t-test obtained tcalculate=2,94>ttable= 1,67, then H1 accepted. Based on these results the authors conclude that the implementation of problem-based learning model has a positive effect on the ability to think critically learners on the material additives and addictive substances.


2021 ◽  
Vol 10 (1) ◽  
pp. 95-106
Author(s):  
Samsul Nurdiansyah ◽  
Rostina Sundayana ◽  
Teni Sritresna

AbstrakKemampuan berpikir kritis matematis dan Habits of Mind merupakan salah satu kemampuan dasar yang harus dimiliki oleh siswa. Fakta menunjukkan bahwa kemampuan berpikir kritis matematis dan Habits of Mind siswa masih rendah. Diperlukan upaya untuk meningkatkan kemampuan berpikir kritis matematis dan Habits of Mind siswa salah satunya menggunakan model Inquiry Learning dan model pembelajaran Creative Problem Solving. Tujuan dari penelitian ini adalah menganalisis perbedaan kemampuan berpikir kritis matematis dan Habits of Mind antara siswa yang mendapatkan model Inquiry Learning dengan Creative Problem Solving. Metode penelitian yang digunakan adalah kuasi eksperimen dengan populasi seluruh siswa kelas X SMA Negeri 11 Garut. Sampel pada penelitian ini sebanyak dua kelas yaitu kelas X-MIPA 5 sebanyak 35 siswa sebagai kelas eksperimen I yang mendapat model Inquiry Learning dan kelas  X-MIPA 6 sebanyak 35 siswa sebagai kelas eksperimen II yang mendapat model pembelajaran Creative Problem Solving. Instrumen penelitian yang digunakan berupa tes uraian dan angket skala Likert. Berdasarkan hasil analisis secara statistik diperoleh kesimpulan bahwa terdapat perbedaan kemampuan berpikir kritis matematis dan Habits of Mind antara siswa yang mendapatkan model Inquiry Learning dengan Creative Problem Solving. Untuk meningkatkan kemampuan berpikir kritis matematis dan Habits of Mind, model Inquiry Learning cocok digunakan. Mathematics Critical Thinking Ability And Habits Of Mind Using Inquiry Learning Model And Creative Problem Solving ModelAbstractMathematical Critical Thinking Skills and Habits of Mind are some of the basic abilities that students must have. The fact shows that the Mathematical Critical Thinking Skills and Habits of Mind are still low. Efforts are needed to improve the Mathematical Critical Thinking Skills and Habits of Mind, one of them using Inquiry Learning and Creative Problem Solving learning. The purpose of this research was to analyze the differences in Mathematical Critical Thinking Skills and Habits of Mind between students who get the Inquiry Learning model with Creative Problem Solving. The research method used a quasi-experimental with a population of all class X of SMAN 11 Garut. The sample consisted of two classes, class X Science 5 by 35 students as the first experimental class, which got Inquiry Learning model, and class X Science 6 by 35 students as the second experimental class which got Creative Problem-Solving learning model. The research instrument used a description test and a Likert scale questionnaire. Based on the results of statistical analysis, it is found that there are differences in Mathematical Critical Thinking Skills and Habits of Mind between students who get the Inquiry Learning model with Creative Problem Solving. To improve mathematical critical thinking skills and Habits of Mind, the Inquiry Learning model is suitable.


2018 ◽  
Vol 2 (2) ◽  
pp. 05-10
Author(s):  
Edo Dwi Cahyo ◽  
Laila Kodariyati

This research is motivated by the low ability of students to think critically. The purpose of the study was to determine the effect of the Controversial Issues (CI) learning model in improving students' critical thinking skills. This study uses a quantitative approach with a quasi-experimental method. The study design used Nonequivalent [Pre-Test and Post-Test] Control Groups Design (NCGD). The research samples were fourth grade students of SDN 4 Metro Timur, SDN 5 Metro Timur, SDN 8 Metro Timur, and SDN 10 Metro Timur, 60 students were used as the experimental class and 60 students were used as the control class. Data collection tools in the form of sheets about students' critical thinking skills. Data collection techniques in the form of tests, namely pretest to measure the initial ability of students' critical thinking skills and posttest to see the final ability. Based on the results of the study concluded that the effectiveness of the use of the Controversial Issues learning model affects the critical thinking skills of class IV elementary school students, so that students' critical thinking skills in the experimental class are much better when compared to the control class that has conventional learning. Keywords: Controversial Issues, learning model, Social Skills.


2021 ◽  
Vol 9 (1) ◽  
pp. 65-75
Author(s):  
Zainatul Hasanah ◽  
Andi Ulfa Tenri Pada* ◽  
Safrida Safrida ◽  
Wiwit Artika ◽  
Mudatsir Mudatsir

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.


2017 ◽  
Vol 21 (1) ◽  
pp. 1-10
Author(s):  
Suratno Suratno ◽  
Dian Kurniati

Tujuan penelitian ini adalah untuk mengetahui peningkatan kemampuan berpkir kritis siswa kelas V SD di sekitar perkebunan kopi Garahan Jember melalui penerapan model pembelajaran math-science berbasis performance assessment. Kemampuan berpikir kritis dalam penelitian ini adalah kemampuan pembuktian, kemampuan generalisasi, dan kemampuan pemecahan masalah. Data dianalisis dengan pendekatan kuantitatif dan kualitatif. Uji coba penelitian ini diterapkan pada dua SD di sekitar perkebunan kopi yaitu MI Al –Amin Garahan dan SD Negeri Sidomulyo 03 Jember dengan subyek penelitian sebanyak 80 siswa. Data diperoleh dari hasil kinerja siswa selama mengerjakan post test pada materi math-science dan wawancara. Pada siklus pertama terdapat 8 siswa (10%) yang memenuhi semua indikator kemampuan generalisasi dan pembuktian, sedangkan kemampuan pemecahan masalah belum berkembang dengan maksimal. Pada siklus kedua terdapat peningkatan, yaitu terdapat 22 siswa (27.5%) yang mampu memiliki kemampuan pembuktian dan kemampuan generalisasi. Pada siklus ketiga terdapat 32 siswa (40%) yang mampu memiliki semua kemampuan berpikir kritis. Berdasarkan hasil penelitian, dapat disimpulkan bahwa terdapat peningkatan kemampuan berpikir kritis siswa.Kata kunci: math-science, performance assessment, kemampuan berpikir kritis THE IMPLEMENTATION OF MATH-SCIENCE LEARNING MODEL BASED ON PERFORMANCE ASSESSMENT TO IMPROVE STUDENTS’ CRITICAL THINKING SKILL IN JEMBER COFFEE PLANTATION AREAAbstractThe research is aimed t knowing the improvement of the critical thinking skills of the fifth grade students in Garahan Coffee plantation area through the implementation math-science learning model based on performance assessment. In this research, the critical thinking skills include proof skill, generalization skill, and problem solving skill. Data were analized by quantitative and qualitative approach. This research was implemented to two elementary schools in Garahan coffee plantation area, namely MI Al-Amin Garahan and SD Negeri Sidomulyo 03 Jember, with 80 students as the subject. Data were obtained from the result of students’ post test on math-science and interview. In the first trial, there are 8 students (10%) who comply with all indicators of generalization and proof skills, while the problem solving skill has not optimally been developed. The result of the second trial has increased to 22 students (27.5%) who have proof and generalization skills. The third trial shows that 32 students (40%) comply with all indicators of critical thinking skills, namely proof, generalization, and problem solving skills. Based on the research findings, it can be concluded that there is improvement on students’ critical thinking skill.Keywords: math-science, performance assessment, critical thinking skill


2021 ◽  
Vol 2 (3) ◽  
pp. 1-9
Author(s):  
Muflichatu Nur Fita ◽  
Budi Jatmiko ◽  
Elok Sudibyo

The purpose of this research was to see how effective the Problem Based Learning (PBL) based Socioscientific Issues (SSI) is at improving critical thinking skills. The sample used was grade seven in SMPN 4 Lamongan with 2 classes and each class contains 15 students. The design of the learning materials trial used  One-Group pre-test post-test design. Tests of critical thinking skills and student answer sheets were used to collect data. Techniques of data analysis used N-gain, paired t-test, and independent t-test. The result of this research is as follows: The effectiveness in terms of the critical thinking skills test the category increase is high, there is a significant difference between the test before and after learning with PBL based SSI and there is no difference N-gain in the two group classes and students' responses are classified as very good. Based on data analysis, it can be concluded that PBL with SSI is effective to improve critical thinking skills. The implications of this study are PBL-based SSI has the potential to be an innovative solution and alternative for improving critical thinking skills.


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