scholarly journals Improving Critical Thinking Skills of Vocational School Students Using Problem-Based Learning

Author(s):  
Aulia Prima Kharismaputra ◽  
Sigit Santoso ◽  
Tri Murwaningsih

This study aims to determine the differences in critical thinking skills between students who learn using the problem based learning model and STAD model. This research is a quantitative study with a quasi-experimental method. The population of this study is the X grade students of SMK Negeri 3 Surakarta in the academic year 2017/2018. Samples were obtained by using cluster random sampling technique consisting of two classes namely X PM 1 class as the experimental class with problem-based learning and X PM 3 class as the control class with STAD learning. The technique of collecting data uses a multiple choice test to determine students' critical thinking skills. Data Analysis is using MANOVA. The results of the study indicate that there is a significant influence between the learning model on critical thinking skills. The application of the problem-based learning model proved to be more able to improve students' critical thinking skills compared to the STAD learning model.

2020 ◽  
Vol 3 (1) ◽  
pp. 51-56
Author(s):  
Retno Triningsih ◽  
Mawardi Mawardi

The purpose of conducting this research is to compare the effectiveness of the Problem Based Learning learning model and the Project Based Learning learning model in terms of the critical thinking skills of elementary students. This type of research used in this research is Quasi Experimental with experimental design of Post test-Only Control Group Design. The population in the study were 164 five grade students in Diponegoro Salatiga Cluster, while the sample is 111 students of five grade students in SDN Mangunsari 01, SDN Mangunsari 03, and SDN Mangunsari 05. The results obtained from this study are based on descriptive statistics where the average implementation of the Problem Based Learning learning model is 92.46, while the average implementation of the Project Based Learning learning model is 85.15. the results of critical thinking skills in the Problem Based Learning model are higher than the Project Based Learning learning model reinforced by the T test results obtained by the Sig. (2-tailed) of 0, 047 0.05 thus there is a significant difference between the two groups.


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 5 (2) ◽  
pp. 77-87
Author(s):  
Jihan Nisa Amini ◽  
Dedi Irwandi ◽  
Evi Sapinatul Bahriah

Abstract. The purpose of this study was to determine the effectiveness of the problem-based learning model based on ethnoscience on students' critical thinking skills on colloidal material. Experiments were conducted on a sample of 36 experimental class students with an ethnoscience-based problem-based learning model and 36 experimental class students with a convention learning model. This research method is a quasi-experimental design with a nonequivalent control group design. The instruments used are essay tests and observation sheets. The results of this study indicate that the average posttest in the experimental class is 76.08, which is higher than the control class, which is 69.33. These results indicate that the use of ethnoscience-based learning problem-based learning models on colloidal material is effective in improving students' critical thinking skills compared to using conventional models.


2020 ◽  
Vol 8 (1) ◽  
pp. 31
Author(s):  
Suhirman Suhirman ◽  
Husnul Khotimah

This study aimed to describe the effect of problem-based learning on students' critical thinking skills and scientific literacy. This research is a quasi-experimental study with pre-test-post test control group design. Sampling was done by saturated sampling technique in which the experimental class consisted of 35 students and the control class was 34 students. Data on critical thinking skills and student scientific literacy were collected using test instruments which were then analyzed descriptively and statistically. The results showed that the Problem-based Learning model had more effect on students’ critical thinking and scientific literacy (p <0.05) than conventional learning models applied to the control class. Based on the results of the study, it can be concluded that the Problem-based Learning model significantly effect on students’ critical thinking and science literacy in class XI MAN 1 Mataram.


Author(s):  
Dina Ristiana Anesa ◽  

This study aims to determine the effectiveness of Problem Based Learning (PBL)-based e-module. The method used was a quasi-experimental with a Posttest Only Control Design. The pilot sample in this study were the students of the Biology Study Program, Universitas NegeriPadang (UNP) in 2019 academic year chosen by using a purposive sampling technique. The instruments used in this study were the lecturer interview questionnaires, student needs analysis questionnaires, validity and practicality questionnaires and evaluation questions based on critical thinking indicators. The results of the analysis of evaluation questions showed that the mean scores of critical thinking skills of the experimental class students were higher than the control class. The mean score of the experimental class was 76.89 while the control class was 65.11. The result of critical thinking t test shows that t count (0.000) < from (0.05). Thus, it indicates that the e-module on PBL-based classical genetic material is effective for improving the students' critical thinking skills.


2018 ◽  
Vol 2 (2) ◽  
pp. 42
Author(s):  
Nining Karlina

Abstract-this study aims to know, analyze and evaluate the differences of students’ critical thinking skills by using problem based learning model and conventional models. This study uses a quasi-experimental method with quantitative approach using Nonequivalent (Pretest-Posttest) Control-Group Design. The data collection technique used in this study is using the test. The data analysis technique is done by independent t-test sample. Moreover, this research shows the significant differences if seen from the average of percentage of  experiment class; pretest is less while posttest is so gratified. The result of pretest control class is less and posttest is enough The results of this research give the recommendation for teachers and next researchers to apply problem based learning model to enhance critical thinking ability of students. In addition, problem based learning model is also expected to encourage students to be able to solve problems encountered in everyday life, especially in social studies.Keywords: Problem based learning, conventional learning model and critical thinking.


2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Pocut Intan ◽  
Riska Imanda ◽  
Sirry Alvina

This study aimed to determine the differences in critical thinking skills (CTS) between classes using the worksheet-assisted probing prompting learning model and those using only probing prompting learning model for the subject of reaction rate at MAS Ulumuddin Lhokseumawe. The research method was quasi-experimental with the Nonequivalent Control Group research design. The sample used were two classes with 30 students in each. The data was collected by using multiple choice test questions. The results showed that there were differences in the critical thinking skills of students who were taught using the worksheet-assisted probing prompting learning model and students who were taught with only probing prompting learning model. Since there was a significant value of 0.000 0.05, then the Ha was accepted while the H0 was rejected. It can be concluded that there is a significant effect of the probing prompting learning model assisted with students’ worksheet on the critical thinking skills of students at MAS Ulumuddin Lhokseumawe.


Biosfer ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 86-100
Author(s):  
Lia Junita Harahap ◽  
Rizhal Hendi Ristanto ◽  
Ratna Komala

The broad scope of biology and the many sources of biology reading requires eleven grade students to think critically about sorting out information to develop and support students' critical thinking skills. CirGi is an integration of the cooperative integrated reading and composition (CIRC) learning model and guided inquiry (GI) that emphasizes reading and writing activities, accompanied by guidance from the teacher. This study aimed to analyze the influence of CirGi's learning model on students' critical thinking skills. This research uses a quasi-experiment method with pre-post control group design. The sampling technique used purposive sampling, namely 104 high school students. Data collection was carried out using instruments of critical thinking skills in the form of essays, questionnaire responses of students to learning, and observation sheets of syntax implementation. The data analysis technique used was one-way ANCOVA. After controlling for the pretest scores, the CirGi learning model's influence on students' critical thinking skills was influenced. This learning model was appropriate for learning biology, so it can regrow the activities of reading science books that impact students' critical thinking skills.


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