scholarly journals Problem Based Learning (PBL) Model: Its Effect in Improving Students’ Critical Thinking Skill

2021 ◽  
Vol 4 (2) ◽  
pp. 183-190
Author(s):  
Dora Aini ◽  
Sri Latifah ◽  
Abdul Hamid

This study aims to determine the effectiveness of the Problem Based Learning (PBL) model on the critical thinking skills of 7th-grade students of SMP Negeri 34 Bandarlampung (Public Senior High School 34 Bandarlampung). This quasi-experiment involved 2 groups of students, totaling 28 students for the Experimental class and 26 students for the Control class. Data collection was obtained by using an essay test instrument which was presented in the pretest and posttest. Based on the research results, it is known that the posttest results of the experimental class are 78.82, and the results of the control class are 74.07. The data were then analyzed by independent sample t-test and obtained tcount (2.213) greater than ttable (2.007). The effectiveness of the Problem Based Learning (PBL) model was tested with the effect size test, the results showed a number of 0.2 with a low category. So, it can be concluded that the Problem Based Learning (PBL) model has an effect on increasing students’ critical thinking skills but with low effectiveness.

2019 ◽  
Vol 7 (3) ◽  
pp. 177
Author(s):  
Hestiningtyas Yuli Pratiwi ◽  
Nurul Ain ◽  
Helena Jelita Igut

The research aims to analyze the quality of the learning process using the Problem-Based Learning (PBL) model to find out the improvement of student’s motivation and critical thinking skills. It is a classroom action research conducted in two cycles, cycle I consist of 4 meetings, and cycles II consists of 3 meetings, with the topics of Temperature, Expansion, and Heat. The subjects of the research were 34 students on grade VII in one of the junior high schools in Malang. Instruments used to measure the implementation of learning PBL model using the form of implementation sheet following the lesson plan, tools to measure motivation using a poll and to measure the critical thinking skill, and researchers use essay questions. The implementation of the PBL model in the cycle, I was 72.9% and was classified as a good qualification; while in cycle II, it was 91.2% and was classified as a very good qualification. The analysis of student’s learning motivation in pre-cycle was 56%, was classified as a quite good qualification, cycle I was 67.2%. I was classified as a quite good qualification, while in Cycle II, it was 87.2% and was classified as good qualification. The analysis of student’s average critical thinking skills in pre-cycle was 44.12% and was classified lack of good qualification, cycle I was 76.4% and was classified as a quite good qualification; while in cycle II it was 88.4% and was classified as good qualification. The results showed that the PBL model successfully improved motivation and critical thinking skills of students beginning the pre-cycle, cycle I, and cycle II.


2020 ◽  
Vol 9 (3) ◽  
pp. 340-350
Author(s):  
R. W. Akhdinirwanto ◽  
R. Agustini ◽  
B. Jatmiko

The Problem-Based Learning with Argumentation (PBLA) model is a development model of Problem-Based Learning (PBL) added to the Toulmin Argumentation activity to increase the critical thinking skill in junior high school. The research aims to determine the feasibility of PBLA in terms of its validity and effectiveness. The research samples are two groups of students (class 1 and class 2) with 26 students in each class. Before learning to use PBLA, each class was given a pretest, and after learning to use PBLA were also given a posttest. PBLA validity data were obtained through validity sheets and analyzed through expert agreement. PBLA effectiveness data was obtained through critical thinking skill tests and analyzed by paired t-test, n-gain, and two-average similarity test. The results showed that the content validity and the construct validity categorized as valid with a score of 3.5 and 3.3. The reliability scores obtained are 77.10% and 77.67%. The critical thinking skill data showed a significant increase in critical thinking skill at α = 5%, the average n-gain was categorized high, and there was a similarity in increasing critical thinking skills for the two classes. In conclusion, PBLA is effective in increasing critical thinking skills for junior high school students


2019 ◽  
Vol 1 (1) ◽  
pp. 34
Author(s):  
Khoiro Mahbubah ◽  
Neni Hermita

Critical thinking skills is one of 21st century skill. This requires students to solve the problems they face. Therefore, it need a test instrument that can assess students' critical thinking skills. This study aims to develop instrument test of critical thinking skills of high school students by two tiers test format related to temperature and heat concept. The research method used was the ADDIE development model (Analyze, Design, Development, Implementation and Evaluation) conducted by 11th grade high school students who have studied temperature and heat concept. The number of respondents of research as many as 30 students in 11 grade senior high school in Bandung. Data collection using the Halpern framework critical thinking skill instrument test adapted by Tiruneh by two tiers test format. The results obtained that the test instrument of critical thinking skills related to temperature and heat concept by two tier test format can assess students' critical thinking skills. Thus, the development of critical thinking skill test by two tier test format has the potential to be one of the test instrument for assessing and trained students' thinking skill.


2014 ◽  
Vol 2 (2) ◽  
pp. 209 ◽  
Author(s):  
Pricilla Anindyta ◽  
Suwarjo Suwarjo

<p class="E-JOURNALTitleEnglish">Penelitian ini bertujuan untuk mengetahui: (1) perbedaan keterampilan berpikir kritis dan regulasi diri siswa antara kelas yang diajar dengan menggunakan <em>problem based leaning</em> dan kelas yang diajar dengan menggunakan pembelajaran ekspositori dan (2) pengaruh penerapan <em>problem based learning</em> terhadap keterampilan berpikir kritis, dan regulasi diri siswa. Penelitian ini merupakan penelitian eksperimen semu. Populasi penelitian ini adalah seluruh siswa kelas V SD Santo Vincentius Jakarta. Pada kelas eksperimen, pembelajaran IPA dilaksanakan dengan model <em>problem based learning</em>, sedangkan pada kelas kontrol dengan  pembelajaran yang biasa digunakan oleh guru yaitu pembelajaran ekspositori. Instrumen yang digunakan adalah (1) tes untuk mengukur keterampilan berpikir kritis siswa ditinjau dari aspek kognitif, (2) skala perilaku untuk mengukur keterampilan berpikir kritis ditinjau dari aspek perilaku dan regulasi diri siswa. Analisis data menggunakan (1) statistik deskriptif untuk mendeskripsikan data keterampilan berpikir kritis dan regulasi diri siswa, dan (2) statistik infe-rensial dengan menggunakan uji t sampel bebas dan uji MANOVA untuk menguji hipotesis penelitian dengan taraf signifikansi 5% (α = 0,05). Hasil penelitian menunjukkan bahwa: (1) terdapat perbedaan keterampilan berpikir kritis siswa yang signifikan antara kelas yang diajar dengan menggunakan <em>problem based leaning</em> dan kelas yang diajar dengan menggunakan pembelajaran ekspositori, dengan nilai sig. 0,040; (2) terdapat perbedaan regulasi diri siswa yang signifikan antara kelas yang diajar de-ngan menggunakan <em>problem based learning</em> dan kelas yang diajar dengan menggunakan pembelajaran ekspositori, dengan nilai sig. 0,005; (3) penerapan <em>problem based learning</em> berpengaruh secara positif dan signifikan terhadap keterampilan berpikir kritis dan regulasi diri siswa, dengan nilai sig 0,021.</p> <p class="E-JOURNALAbstrakKeywords"><strong>______________________________________________________________________________________________________________________________________________________________________________________________________________________________________</strong></p> <p class="E-JOURNALAbstrakTitle"><strong>THE EFFECT OF APPLYING PROBLEM-BASED LEARNING TO CRITICAL THINKING SKILL AND SELF-REGULATION OF 5<sup>TH</sup> GRADERS<br /></strong></p><p class="E-JOURNALAbstrakTitle"><strong><em>ABSTRACT</em></strong></p> <p class="E-JOURNALAbstractBodyEnglish">The objective of this research is to know: (1) the difference between the student’s critical thinking skills and self regulation of the classes taught using problem based learning and expository learning, and (2) the effect of applying problem-based learning to student’s critical thinking skill and self-regulation. This research is a quasi-experimental research study. The population of this research is all 5th graders of St. Vincentius, Jakarta. In the experimental class, science study was done by problem-based learning model, while in the control class by expository learning model. The instruments used are (1) a test to measure students’ critical thinking skill reviewed from the cognitive aspect, (2) a scale of behavior to measure critical thinking skill reviewed from the behavioral aspect and students’ self-regulation. Data analysis used (1) descriptive statistics to describe the data of students’ critical thinking skill and self-regulation, and (2) inferential statistic by using independent sample t-test and MANOVA test to test the hypothesis of research with the significance level of 5% (α = 0,05).The results of this reseach have shown that: (1) there is a difference between the student’s critical thinking skills of the classes taught using problem based learning and expository learning, with sig 0.040; (2) there is a difference between the student’s self regulation of the classes taught using problem based learning and expository learning, with sig 0.005; (3) the application of problem-based learning positively and significantly influences students’ critical thinking skill dan self regulation, with sig 0.021.</p> <strong>Keywords</strong>: problem-based learning, expository learning, critical thinking skill, self-regulation.<br />


2020 ◽  
Vol 4 (2) ◽  
pp. 273 ◽  
Author(s):  
Melva Yola Afdareza ◽  
Putri Yuanita ◽  
Maimunah Maimunah

This research aims is to produce a learning device based on 21st century skills with the implementation of problem-based learning to increase the critical thinking skill of students on polyhedron for grade 8th junior high school. The type of this research is development research using Plomp’s model, there are (1) preliminary research phase; (2) the prototype phase; and (3) assessment phase. The results of this research are a learning device based on 21st century skill with the implementation of  problem-based learning to increase the critical thinking skill of students on polyhedron for grade 8th junior high school. The results of the syllabus, RPP, LKPD validation and critical thinking skills show valid and very valid criteria with values of 3.19; 3.32; 3.26; and 3.13. In the final product test phase, learning devices were used through pre-experimental research to see the increase in critical thinking skills and there was an increase in the critical thinking skill of students using learning devices. This means that the learning device based on 21st century skill with the implementation of problem-based learning to increase the critical thinking skill of students on polyhedron for grade 8th junior high school has been valid, practical, and effective.


Sigma ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 26
Author(s):  
Ardi Dwi Susandi

This Mathematics critical thinking skill is one of the components a student must possess. This skill will assist them to be able to make the right decision. In fact, however, not many of them having a high of critical thinking skill. It causes them to be lack of skills in completing the mathematics cases. This research aims to: (1) describe the critical thinking skills of junior high school students in solving mathematical problems and (2) identify the students' critical thinking components in the focus, reason, inference, situation, clarity, dan overview. This was descriptive research with a qualitative approach. This research involved 32 subjects comprising 15 male students and 17 female students. The method used in this research is test, interview, and triangulation. The test used in this research consisted of 6 problems representing 6 sub-skills of critical thinking skills. The results of data collection were analyzed through data reduction, data display, and conclusion drawing. The findings showed that: (1) the critical thinking skills of junior high school students were in a low category; (2) overview became the lowest critical thinking sub-skills mastered by the students compared to other critical thinking sub-skills


2020 ◽  
Vol 10 (1) ◽  
pp. 31
Author(s):  
Zetriuslita Zetriuslita ◽  
Rezi Ariawan

This study aims to find out the improvement of students’ mathematical critical thinking viewed from curiosity through teaching materials with Problem Based Learning model. This is quasi-experimental research. The samples are, where the overall population consists of 75 samples divided into two classes.  This research employed a simple random sampling technique.  The instruments were the mathematical critical thinking skill test and curiosity questionnaire. The technique of data collection was carried out with test and non-test techniques. The data were analyzed through a two-way Anova test. Based on the analysis and interpretation of the research findings, it was found that: there was an improvement in students’ mathematical critical thinking skill from High curiosity by using teaching materials with Problem Based Learning model; 1) There was an improvement from  Average curiosity through learning with Integral Calculus teaching materials; 2) There was an improvement from Low curiosity; 3) There was no improvement from the level of curiosity (High,  Medium,  Low) through Problem-based Learning. 4) There was no influence between the level of curiosity and learning in improving students’ mathematical critical thinking skills. Do more in-depth studies related to improving mathematical critical thinking skills by reviewing other affective aspects


2020 ◽  
Vol 12 (1) ◽  
pp. 1
Author(s):  
Desy Triana Dewi

The classroom action research is based on lack of student critical thinking skill has an impact result of learning. This study aims to analyze teacher and students’ activities, to improve students’ critical thinking skills and student response by applying Problem Based Learning model to the APBN and APBD materials in Development on eleventh grade of Social Major 3 in 1st Senior High School Puri Mojokerto. This study was conducted in two cycles. Each cycle uses the stages of study plan (planning), implementation (acting), observation (observing), and reflection (reflecting). The instruments used were a post-test to determine the ability to think critically and an observation sheet to find out the teacher's activities, the students' activities and students' responses to the application of Problem Based Learning model. The result showed that the students' critical thinking skills increased from 50% in cycle 1 to 87.5% in cycle 2. Furthermore, the teacher activity showed an increase from 74,76% in cycle 1 to 91.9% in cycle 2. While the students' activity also experienced an increase from 78.19% in cycle 1 to 84.57% in cycle 2, and the students' response reached 89.06%. Therefore, it can be concluded that based on the results, the application of Problem Based Learning model can increase students' critical thinking skills.


2018 ◽  
Vol 3 (1) ◽  
pp. 62-75 ◽  
Author(s):  
Eka Noviana Kharisma

This study aims to analyze the critical thinking skills of students of the vocational high school in mathematics concept of sequence and series. The method used in this research is descriptive qualitative with limited subjects that are 3 students of the vocational high school in Bandung district with high, medium and low classification. The main instrument in this study is the researchers themselves, critical thinking mathematical skill tests and interview guidelines. Results of this study show that the critical thinking skill mathematically owned by vocational students in Bandung district is still relatively low, it is based on written tests and interview with students.


Author(s):  
Budi Utami ◽  
Sulistyo Saputro ◽  
Ashadi Ashadi ◽  
Mohammad Masykuri ◽  
Sri Widoretno

Critical thinking skill is the priority in the goals of education. In this case, the critical thinking has the higher process, such as analyzing, synthesizing, evaluating, drawing conclusion and reflecting which enables the individual to make the reasonable assessment both in the classroom and in the daily life.  This research is aimed to determine the students’ critical thinking skill in learning Chemistry at senior high school. This research used descriptive method in which the instruments were developed based on the indicators of critical thinking skill. The population of this research was 100 students of tenth, eleventh and twelfth grade from senior high schools in Surakarta which was chosen using cluster random sampling technique. The result of the research shows that the students of tenth, eleventh and twelfth grade have adequate critical thinking skills.


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