scholarly journals PENINGKATAN KEMAMPUAN BERPIKIR KRITIS DAN PENGUASAAN KONSEP IPA SISWA SD DENGAN MENGGUNAKAN MODEL PROBLEM BASED LEARNING

2018 ◽  
Vol 10 (2) ◽  
pp. 115
Author(s):  
Widdy Sukma Nugraha

Abstract:. The study reported an increase in critical thinking skill and mastery of science concept in Cisomang 2 primary schools through Problem Based Learning Model.  critical thinking skills Indicators that are used in this study refers to a theory that developed by Ennis, while the  Bloom categorization is used as an indicator of mastery of science concepts. This study uses pretest value and postest value to see the comparison. Data analysis performed in this study is calculate the n-gain increase. From the research results, there is an increased critical thinking skills and mastery sciece concepts after using model Problem Based Learning. Based on research result, there are the increase of critical thinking average after the problem based learning model gived to student and the result is30.70,while the mastery science concept 32,17. Abstrak: Penelitian ini melaporkan  peningkatan kemampuan berpikir kritis dan penguasaan konsep IPA peserta didik di SD Negeri Cisomang 2 dengan menggunakan model Problem Based Learning. Indikator kemampuan berpikir kritis yang digunakan pada penelitian ini mengacu pada teori yang dikembangkan oleh Ennis, sedangkan kategorisasi Bloom digunakan sebagai indikator penguasaan konsep IPA. Penelitian ini menggunakan nilai pretest (sebelum pembelajaran) dan nilai posttest (setelah pembelajaran) untuk melihat perbandingan kemampuan berpikir kritis dan penguasaan konsep peserta didik.  Analisis data yang dilakukan pada penelitian ini adalah melihat peningkatan N-gain dari hasil instrumen yang sebelumnya dilakukan uji homogenitas dan uji-t dengan program SPSS 18. Dari hasil penelitian yang dilakukan, didapatkan hasil peningkatan kemampuan berpikir kritis setelah pembelajaran dengan rata-rata peningkatan 30,70 sementara untuk hasil tes penguasaan konsep terjadi peningkatan dengan rata-rata 32,17. Baik kemampuan berpikir kritis maupun penguasaan konsep terjadi peningkatan yang signifikan.

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.


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


2020 ◽  
Vol 5 (1) ◽  
pp. 62-69
Author(s):  
Suryadin Hasyda ◽  
Arifin Arifin

The aim of this study is to improve students' critical thinking skills through a problem based learning model in class IV SDN Ende 1. The type of research used in this study is classroom action research consisting of several interrelated cycles and the model chosen in this study is a Kemis and Mc Tagart model which consists of several stages namely planning, action, observation and reflection, where actions and observations are carried out together. The subjects of this study were 21 students in class IV SDN Ende 1. Based on the results of data analysis in classroom action research shows that the learning feasibility by applying the learning model Problem Based Learning has increased namely 81.5% in the first cycle and 94% in the second cycle, therefore it can be said that the learning process has been carried out very well and in accordance with the reference in the lesson plan that has been made. While the results of observations of student activities during learning by applying  model of problem based learning have increased, which is proved by the increase in the average score of student learning activities in the first cycle by 55% and the second cycle by 87%. This improvement shows that during the learning process students were actively involved in solving problems. The results of the students’ critical thinking ability test of the first cycle can be seen that, there are 9 students or 43% who reach the KKM standard, while 12 students or 57% do not reach the value of 70 in accordance with the minimum completeness criteria set by the school. While the second cycle is known that as many as 21 students (100%) have succeeded and reached the indicator of critical thinking. The highest score obtained by student is 90 and the lowest score is 70 with an average value of 80% in the critical category. Therefore, the implementation of research by applying the problem based learning model ends in the second cycle . So, through research that has been done, by applying the Problem Based Learning model it is proven that it can improve the critical thinking skills of class IV students whose critical thinking test results are complete or meet the minimum completeness criteria (KKM).


2019 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Bedilius Gunur ◽  
Apolonia Hendrice Ramda ◽  
Alberta Parinters Makur

<p>This research aimed to: 1) compare the mathematical critical thinking skills of students who were taught with the Problem Based Learning model assisted by open-ended problems and students who were traditionally taught, 2) investigate the interaction between problem based learning models with mathematical attitudes towards students' mathematical critical thinking abilities. It was a quantitative study using a quasi-experimental method with a 2 x 2 factorial design and was conducted at SMA Negeri 1 Cibal, Manggarai district, East Nusa Tenggara. Two classes were experimental and two classes were control and were chosen using cluster random sampling techniques. Data were obtained through questions to measure mathematical critical thinking skills and mathematical attitude questions and then analyzed with two way ANOVA. The data analysis and interpretation showed that 1) the mathematical critical thinking skills of students who were taught with the Problem Based Learning model assisted by open-ended problems were better than those of students who have been traditionally taught 2) there was no interaction between the problem based learning model and students' mathematical critical thinking abilities. This means that both students who had high and low mathematical attitudes scores when taught with the Problem Based Learning approach assisted with open-ended problems were always better than students who are taught with conventional approaches.</p><p><strong>BAHASA INDONESIA ABSTRACT:</strong> Penelitian ini bertujuan untuk; 1) membandingkan kemampuan berpikir kritis matematika siswa yang mengikuti model <em>problem</em><em> </em><em>based learning</em> berbantuan masalah open-ended dengan kemampuan berpikir kritis matematika siswa yang mengikuti pembelajaran konvensional. 2) melihat interaksi antara model problem based learning dengan sikap matematis terhadap kemampuan berpikir kritis matematika siswa. Penelitian ini merupakan penelitian eksperimen semu (<em>quasi experiment</em>) dengan rancangan factorial 2 x 2. Populasi dalam penelitian ini adalah siswa kelas X SMA Negeri 1 Cibal kabupaten Manggarai, Nusa Tenggara Timur. Pengambilan sampel dilakukan dengan menggunakan teknik cluster random sampling, 2 kelas sebagai kelas eksperimen dan 2 kelas sebagai kelas kontrol. Instrumen penelitian yang digunakan berupa tes kemampuan berpikir kritis matematika dan tes sikap matematis. Data yang telah terkumpul dianalisis dengan menggunakan uji Anava Dua Jalur. Sebelum digunakan uji anava dua jalur, data tersebut terlebih dahulu dilakukan uji normalitas dan homogenitas. Hasil penelitian ini menunjukkan; 1) kemampuan berpikir kritis siswa yang mengikuti pembelajaran matematika dengan model Problem Based Learning berbantuan masalah open-ended lebih baik daripada siswa yang mengikuti pembelajaran matematika dengan pendekatan konvensional; 2) tidak terdapat interaksi antara pendekatan pembelajaran Problem Based Learning dengan sikap matematis siswa terhadap kemampuan berpikir kritis matematika siswa. Artinya baik siswa yang memiliki sikap matematis tinggi maupun yang memiliki sikap matematis rendah apabila diajarkan dengan pendekatan pembelajaran Problem Based Learning berbantuan masalah open-ended selalu lebih baik dibanding siswa yang dibelajarkan dengan pendekatan konvensional.</p>


2021 ◽  
Vol 1 (2) ◽  
pp. 149-157
Author(s):  
NGATIYEM NGATIYEM

This study aims to improve students' critical thinking skills through the application of the Problem Based Learning model to students. This model, if applied properly, can train students in solving contextual problems. The purpose of this research is to improve the critical thinking skills of students in class IXH MTs Darul A'Mal Metro City through the application of the Problem Based Learning model on population and environmental materials. classroom action research) using the Kemmis and Mc Taggart model where each cycle consists of planning (planning), implementation (action) and observation (observe), and reflection (reflect). The researcher acts as the designer of the action as well as the executor of the action, while the partner teacher acts as an observer. The research was conducted at MTs Darul A'Mal Metro in August-September. The research subjects were students of class IXH, totaling 24 male students. Data collection techniques used critical thinking ability observation sheets, critical thinking learning outcomes tests, field notes, and documentation. Data analysis was carried out by analyzing qualitative data consisting of data reduction, data presentation, verification and drawing conclusions. The research action is said to be successful if it reaches the predetermined success criteria of 75%. The results of the study based on observations showed critical thinking skills in the first cycle reached 57.80%, while in the second cycle it reached 79.38%, which means an increase of 21.58%. Based on the results of the critical thinking ability test in the first cycle, there were 54.17% of students who achieved the criteria for completeness, while in the second cycle, 79.17% completed the KKM. The conclusion of this study is that the Problem Based Learning learning model can improve students' critical thinking skills on population and environmental material in class IXH students in the 2016/2017 academic year at MTs Darul A'Mal Metro City. ABSTRAKKemampuan berpikir kritis merupakan hal sangat penting dalam pembelajaran IPA, dengan kemampuan berpikir kritis maka siswa akan dapat mengenali berbagai permasalahan, mampu mengidentifikasi dan menganalisis penyebab dari suatu masalah serta mampu membuat solusi serta mengevaluasi dari suatu permasalahan. Model Problem Based Learning  jika diterapkan dengan baik dapat melatih siswa dalam memecahkan masalah kontekstual  Tujuan penelitian ini adalah untuk meningkatkan kemampuan berpikir kritis siswa kelas IXH MTs Darul A’Mal Kota Metro melalui penerapan model Problem Based Learning pada  materi kependudukan dan lingkungan  Penelitian ini jenisnya adalah tindakan kelas (classroom action research) menggunakan model Kemmis dan Mc Taggart dimana   setiap siklus terdiri dari perencanaan (planning), pelaksanaan (action) dan pengamatan (observe), serta refleksi (reflect). Peneliti bertindak sebagai perancang tindakan sekaligus sebagai pelaksana tindakan, sedangkan guru mitra bertindak sebagai observer. Penelitian dilaksanakan di MTs Darul A’Mal Metro pada bulan Agustus-September.  Subjek penelitian yaitu siswa kelas IXH yang berjumlah 24 siswa laki-laki. Teknik pengumpulan data menggunakan lembar observasi kemampuan berpikir kritis , tes hasil belajar berpikir kritis, catatan lapangan,  dan dokumentasi. Analisis data dilakukan dengan menganalisis data kualitatif yang terdiri dari reduksi data, penyajian data, verifikasi dan penarikan kesimpulan. Tindakan penelitian dikatakan berhasil apabila mencapai kriteria keberhasilan yang telah ditetapkan ?75%. Hasil penelitian berdasarkan observasi menunjukkan kemampuan berpikir kritis pada siklus I mencapai 57,80%, sedangkan pada siklus II mencapai 79,38%, yang berarti mengalami peningkatan sebesar 21,58%. Berdasarkan hasil tes kemampuan berpikir kritis pada siklus I terdapat 54,17% siswa yang mencapai kriteria ketuntasan, sedangkan pada siklus II menjadi 79,17% tuntas KKM. Simpulan penelitian ini yaitu model pembelajaran Problem Based Learning dapat meningkatkan kemampuan berpikir kritis siswa pada materi kependudukan dan lingkungan pada siswa kelas IXH Tahun Pelajaran 2016/2017 MTs Darul A’Mal Kota Metro.


2017 ◽  
Vol 5 (1) ◽  
pp. 802
Author(s):  
Sulardi Sulardi ◽  
Mohamad Nur ◽  
Wahono Widodo

This developmental research aims to produce physics learning device using qualified Problem Based Learning model (PBL) (validity, practicality, and effectiveness) to practice students's critical thinking skills in the subject of rotational dynamics and the weight of the object point. This research was implemented into stages, namely device development using the 4-D model of Thiagarajan (1974) and learning device implementation for 4 meetings with 25 students of eleventh grade of the State senior high school 1 Muara Lawa, in the second semester the academic year 2014/2015 by using one group pretest-posttest design the results of the research was analyzed by using descriptive analysis techniques. The obtained data: validator assessment of the lesson plan (RPP), student’s worksheet (LKS), Student’s Books, and assessment sheets with valid category. Student’s worksheet assessment and student’s book also have a high degree of readability. Lesson plan feasibility with the score of 4.04 is well performed category. Student learning outcomes (knowledge, critical thinking skills, psychomotor skills and attitudes) is classically completed. All students got critical thinking improvement: 16% (not skillful-less skillfull), 48% (not skillful-skillful), 36% (not skillful-very skillful). Based on the observation 65% of the learning was student’s activity. The students responded the learning activities of PBL models positively.The research shows that the physics learning device using problem based learning model is valid, practical, and effective to train the students' critical thinking skills. Penelitian pengembangan ini bertujuan untuk menghasilkan perangkat pembelajaran fisika model Problem Based Learning (PBL) yang berkualitas (validitas, kepraktisan, dan keefektifan) untuk melatih keterampilan berpikir kritis siswa pada materi dinamika rotasi benda tegar dan titik berat benda. Penelitian ini dilaksanakan dalam dua tahap, yaitu pengembangan perangkat mengikuti rancangan 4-D model dari Thiagarajan (1974) dan dilanjutkan dengan tahap implementasi perangkat pembelajaran sebanyak 4 pertemuan terhadap 25 siswa kelas XI-IPA di SMA Negeri 1 Muara Lawa semester genap tahun pelajaran 2014/2015 dengan menggunakan rancangan one group pretest-posttest design sedangkan hasil penelitian dianalisis dengan teknik analisis deskriptif. Data hasil penelitian diperoleh: penilaian validator terhadap RPP, LKS, Buku Siswa, dan lembar penilaian dengan kategori valid. LKS dan Buku siswa juga memiliki tingkat keterbacaan yang tinggi. Penilaian keterlaksanaan RPP dengan skor 4,04 berkategori terlaksana dengan baik. Hasil belajar siswa (pengetahuan, keterampilan berpikir kritis, keterampilan psikomotor dan sikap) secara klasikal tuntas. Semua siswa mengalami peningkatan keterampilan berpikir kritis: 16% (tidak terampil-kurang terampil), 48% (tidak terampil-terampil), 36% (tidak terampil-sangat terampil). Hasil pengamatan sebesar 65% dari pembelajaran adalah aktivitas siswa. Siswa memberikan respon yang positif terhadap kegiatan pembelajaran model PBL. Hasil penelitian menunjukkan bahwa perangkat pembelajaran fisika dengan model PBL telah valid, praktis, dan efektif untuk melatih keterampilan berpikir kritis siswa.


Author(s):  
Ryky Mandar Sary, Djariyo, Ihtiya Kusuma Dewi

The purpose of this study was to determine the increase students' critical thinking skills mathematics courses before and after application of problem based learning model. This type of research is quantitative. Data in this study were obtained through the test of critical thinking skills with narrative form, documentation, and observation. The study design used is one group pretest-posttest design. Based on the analysis of research data after getting treatment with problem based learning model, showed an increase in students' critical thinking skills. T test coefficient of 6.0125 and the coefficient is significant at the 5% level, as obtained thitung> ttable ie t = 6.0125> table = 2.093. It can be concluded that there is an increase in students' critical thinking skills mathematics courses before and after application of problem based learning model.


2018 ◽  
Vol 14 (1) ◽  
Author(s):  
Muhammad Dody Hermawan

The purpose of this reaserch are (1) find differences influence model of Group Investigation (GI) and Problem Based Learning (PBL). (2) find differences influence learning motivation of students to critical thinking abilities of learners. (3) find the interaction effect between learning models and learning motivation of the critical thinking skills of learners. This study will be conducted in SMA Martapura, Banjar regency, South Kalimantan. Subjects of the study were students of class XI SMA Martapura academic year 2015/2016. This type of research to be carried out in this study is a quantitative study using experimental methods. Design of this research is 2 X 2 factorial design to data collection technique motivation questionnaire and tests critical thinking skills. The result, 1) There is a difference between the positive influence of the Model Group Investigation (GI) and Problem Based Learning (PBL). 2) There are differences positively influence the motivation of students to critical thinking ability of students in learning the history. 3) There are nointeractions influence student learning model and motivation for students' critical thinking skill There is no interaction effect Learning Model and the Motivation of students' critical thinking skills of students in Learning Historys. Keywords: PBL Models, GI Models, Learning Motivation


2018 ◽  
Vol 1 (1) ◽  
pp. 94
Author(s):  
Tri Siwi Septiana ◽  
M. Ragil Kurniawan

This study aims to improve students' critical thinking skills in Civics in 5th grade students of SD Muhammadiyah Kauman, Yogyakarta using Problem Based Learning model. This research is a Classroom Action Research (PTK). The subjects of the study were 5th grade students of B1 SD Muhammadiyah Kauman. The object of research is the whole process and the results of learning Civics with the application of Problem Based Learning model. This research was conducted at SD Muhammadiyah Pakel Yogyakarta in April until May 2017. Data collection techniques used were observation, diary, interview and test. Data analysis technique is done descriptively qualitative. This research was conducted in 2 cycles by applying problem based learning model. The learning steps that were implemented were changes in the delivery of the subject matter, the students analyzed the problem, the formation of the discussion group with the grouping of students based on their achievement, the students in group for discussion, the group members delivered the discussion result in front of the class.The results showed that the critical thinking ability of the 5th grade students of B1 SD Muhammadiyah Kauman, Yogyakarta increased after the use of Problem Based Learning model in Civics learning with the subject matter of the example of central and regional legislation. This improvement is evident in the improvement of students' critical thinking skill test result from 12.90% pretreatment score to 51.61% (enough) in cycle I and increased to 70.96% (good) in cycle II. The results of activity observations related to students' critical thinking skills are increased among others: active students in learning, students more freely in finding and collecting desired information, and students also have more opportunities to learn with friends.


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