scholarly journals Pengaruh Laboratorium Virtual Berbasis Problem Solving Terhadap Kemampuan Berpikir Kritis

2020 ◽  
Vol 9 (3) ◽  
pp. 11
Author(s):  
Ewi Mellysa Barus ◽  
Terry Noviar Panggabean

The availability of facilities and infrastructure in learning Cell and molecular biology courses is needed to support the achievement of learning objectives. Based on the results of observations in the Imelda University, Pharmacy Department, the lack of implementation due to the lack of facilities and infrastructure that support the practicum causes a lack of improvement in students' critical thinking skills. The ability to think critically is the main factor affecting student understanding. In this case, the media that can support this is a problem solving-based virtual laboratory to encourage students' critical thinking skills. This study aims to identify the effect of a problem solving-based virtual biology laboratory on the critical thinking skills of students in the Pharmacy Undergraduate Study Program at Imelda University, Medan. The research design was one group pre-test posttest. Data collection was carried out starting in January 2020, followed by data processing and analysis. The sample in this study were all students of the first semester Pharmacy Department at Imelda University, totaling 63 people. The sampling technique in this study is total sampling. The statistical analysis used was one sample T-test. Based on the results of the discussion based on the problems and research objectives, it can be concluded that there is a positive and significant effect with p 0.00 <0.05 in the use of problem solving-based virtual laboratories on students' critical thinking skills in the cell and molecular biology courses at the Imelda University Pharmacy Department. With the virtual laboratory, students learn the principles of science in a fast, effective and fun way through virtual laboratory interactions and navigation.

2020 ◽  
Vol 6 (2) ◽  
pp. 244-254
Author(s):  
Deasy Rahmawati ◽  
Ike Annita

ABSTRACT This aims of this study is to comprehend  the increase in the critical thinking skills of PGSD students through the implementation of social inquiry models in elementary social studies education courses. The population of this study were all 3rd semester students of the PGSD FKIP Unla study program. Sampling was carried out by using saturated sampling technique, where all members of the population were sampled, class A01 as a control class that applied conventional learning and class A02 as an experimental class that was treated with social inquiry learning models. The data in this study were obtained through the results of the pretest and posttest using the critical thinking essay test instrument. The results of this study indicate that there are differences in the increase in the critical thinking skills of PGSD students in the SD social studies course after the social inquiry learning model is applied. Beside that, the critical thinking skills of PGSD students in the Elementary Social Sciences Education course after applying the social inquiry learning model are better than the control class using conventional learning methods.   ABSTRAK Penelitian ini bertujuan untuk mengetahui peningkatan kemampuan berpikir kritis mahasiswa PGSD melalui penerapan model inkuiri sosial dalam mata kuliah pendidikan IPS SD.  Populasi dalam penelitian ini adalah seluruh mahasiswa semester 3 program studi PGSD FKIP Unla. Penarikan sampel dilakukan dengan teknik sampling jenuh, dimana seluruh anggota populasi dijadikan sampel, yaitu kelas A01 dijadikan kelas kontrol yang menerapkan pembelajaran konvensional dan kelas A02 dijadikan kelas eksperimen yang mendapatkan perlakuan model pembelajaran inkuiri sosial. Data yang dalam penelitian ini diperoleh melalui hasil pretes dan postes dengan menggunakan instrumen tes uraian berpikir  kritis. Hasil penelitian ini menunjukkan bahwa terdapat perbedaan peningkatan kemampuan berpikir kritis mahasiswa PGSD pada mata kuliah Pendidikan IPS SD setelah diterapkan model  pembelajaran inkuiri sosial. Selain itu, kemampuan berpikir kritis mahasiswa PGSD pada mata kuliah Pendidikan IPS SD setelah diterapkan model  pembelajaran inkuiri sosial lebih baik daripada kelas kontrol yang menggunakan metode pembelajaran konvensional.


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.


Author(s):  
Ni Nyoman Sri Putu Verawati ◽  
Hikmawati Hikmawati

This study aims to determine the effect of PhET-assisted problem solving methods on students' critical thinking skills. This research is a quasi-experimental research with pretest posttest control group design. Sampling was done by simple random sampling technique, namely class XI IPA-1 as the experimental class and XI IPA-2 as the control class. The research was conducted in one of the senior high schools in Central Lombok – West Nusa Tenggara. The data analysis technique used is t-test using SPSS. The result of hypothesis testing is that the t-test value is less than 0.05. These results indicate that Ho is rejected and Ha is accepted. Based on the results of research and data analysis, it can be concluded that the PhET-assisted problem solving learning method affects students' critical thinking skills.


Author(s):  
Dahliana Dahliana ◽  
Marhami Marhami ◽  
Mursalin Mursalin

This study aims to determine the improvement of students' mathematical critical thinking abilities through problem solving methods. This study was hold at MAN 3 Bireuen (High School Level) in the 2019/2020 school’s year. The research method was a quasi-experimental study design nonrandomized Pre-test Post-test Control Group Design. The population of the study were all students of Class XI MAN 3 Bireuen with purposive sampling technique. The study sample was to 30 students for the experimental class and 28 students for the control class. The skill increasing was calculated using normalized gain. Data were analyzed using the t test. The results showed that students’ critical thinking skills mathematically taught through problem solving methods is better than students mathematical critical thinking skills taught through conventional learning.


2019 ◽  
Vol 5 (1) ◽  
pp. 9-20
Author(s):  
Adam Malik ◽  
Yeni Novita ◽  
Ade Yeti Nuryantini

This study aims to determine the implementation of the learning problem-solving laboratory model and improvement of critical thinking skills of students on temperature and heat topic. The method used in this research was pre-experiment, with one-group pretest-posttest design. The population of this study was class X SMA Muhammadiyah 1 Garut. The sample was selected by random sampling technique, with a sample of one class X-2, amounting to 30 people. The implementation of problem-solving laboratory model learning was observed by observers with observation sheets and improvement of students' critical thinking skills measured by essay tests. The results showed that the average implementation of problem-solving laboratory model learning for teacher activities was 84% and student activities at 80% were both categorized well. There was an increase in the critical thinking skills of students shown by the average of the normalized gain value of 0.64 include the medium category. Thus, the problem-solving laboratory model learning can be used as an alternative in improving students' critical thinking skills on the topic of temperature and heat.


Author(s):  
Etik Etik ◽  
Ninuk Lustyantie ◽  
Emzir Emzir

The purpose of this study is to investigate the effect of Numbered Head Together (NHT) type and Cooperative Script (CS) type of cooperative learning (creative and critical thinking ability) toward the skill of writing exposition paragraph to the second-semester students of Indonesian Language and Literature Education Study Program, University of Cokroaminoto. This study employed the quantitative research approach of the experimental method with a 2x2 factorial design. The test results of the exposition paragraph writing and the thinking ability were analyzed by using a two-way ANOVA design with 0.05 of the significance level. The sample of this study used the multi-stage random sampling technique for 68 students. The result of this research found that students could have high scores in writing exposition paragraphs if teachers employed the cooperative learning model of NHT type so that they could possess the critical thinking ability. The students who had high critical thinking skills got better scores in writing. Conversely, the students who had low critical thinking skills got lower scores in writing.


2017 ◽  
Vol 9 (2) ◽  
pp. 99
Author(s):  
St Fatimah Azzahra

ABSTRACTThis research is aimed to know the differences increase critical thinking skills through learning group and individual problem solving in thermochemical material. This research uses a quasi-experimental design with nonequivalent control group design and study sample consisted of 103 students, divided into the first experimental (group problem solving) (35 students), the two group experimental (individual problem solving) (34 students). The collected through pretest-posttest. The analyzed with the Kruskal Wallis test, the results showed that the learning problem solving as a group or individually can improve students’ critical thinking skills. Statistical test there are significant differences in the students critical thinking skills thermochemical material between students who received group and individual problem solving. Critical thinking skills improvement with problem solving individual learning higher compared with group learning problem solving.Keywords: problem solving learning, critical thinking skillsABSTRAKPenelitian ini bertujuan untuk mengetahui perbedaan peningkatan keterampilan berpikir kritis siswa melalui pembelajaran group dan individual problem solving pada materi termokimia. Penelitian ini menggunakan metode quasi experimen dengan desain Nonequivalent Control Group Design dan sampel penelitian ini terdiri dari 103 siswa yang terbagi ke dalam kelompok eksperimen pertama (pembelajaran group problem solving) (35 siswa), kelompok eksperimen kedua (pembelajaran individual problem solving) (34 siswa).Pengumpulan data dilakukan melalui pretest-posttest. Data dianalisis dengan uji Kruskal Wallis Test, hasil penelitian menunjukkan bahwa pembelajaran problem solving secara group maupun secara individual dapat meningkatkan keterampilan berpikir kritis siswa. Data uji statistik, terdapat perbedaan yang signifikan keterampilan berpikir kritis siswa pada materi termokimia antara siswa yang mendapat pembelajaran group problem solving dan individual problem solving. Peningkatan keterampilan berpikir kritis dengan pembelajaran individual problem solving lebih tinggi dibandingkan dengan pembelajaran group problem solving.Kata Kunci: Pembelajaran Problem Solving, Keterampilan Berpikir Kritis


2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Maifalinda Fatra ◽  
A Rizki ◽  
Tita Khalis Maryati

Mathematical Critical thinking is one of  mathematical abilities that must be obtained by students. Critical thinking is one of the high order thinking processes that can make concepts in student knowledge.  Students with critical thinking in mathematics learning mostly do rational activities such as interpreting information based on a particular theoretical framework, linking theory with practice, making claims and justifying it, utilizing data in support of argumentation, making relations or relationships between various ideas, asking questions, evaluating knowledge, predict, describe something, analyze, synthesize, and categorize. This study aims to analyze the effect of the Concept-Based Learning Model on the critical thingking mathematical abilities.The purpose of this research is to analyze the effect of Concept-Based Learning Model toward mathematics critical thinking ability. The method used in this research is quasi experiment by Randomize Control Group Post Test Only Design with cluster random sampling technique. Indicators of mathematics critical thinking skills measured in this study include providing simple explanations, building basic skills, concluding, making more explanations, and deciding an action. The results showed that the mathematics critical thinking ability of students in the experimental class for the five indicators that being analyze was higher than the ability of students in the control class. A fairly high difference in the indicator showed in give a simple explanation and concluding. and it means that the application of Concept-Based Learning Model significantly influences the  abilities  of students' mathematics critical thinking.


2021 ◽  
Vol 12 (2) ◽  
pp. 359-369
Author(s):  
Agus Pahrudin ◽  
Yustika Fatimatuz Zahra ◽  
Nanang Supriadi ◽  
Iip Sugiharta ◽  
Farida Farida ◽  
...  

Conceptual understanding and critical thinking skills are necessary for all students to help them in their learning process. This research aims to determine the effect of Moodle-assisted e-learning on (1) conceptual understanding, (2) critical thinking skills, and (3) conceptual understanding and critical thinking skills combined. This research employed a quasi-experimental design with random cluster sampling was used as the sampling technique. An algebra written test was used to collect research data. Furthermore, the researchers performed the normality test, homogeneity test, and MANOVA analysis to analyze the data. The researchers discovered that Moodle-assisted e-learning influenced students' conceptual understanding, critical thinking skills, and conceptual understanding and critical thinking skills.


Author(s):  
Zainab Salem Ahmad

This study aimed to investigate the relationships between teachers' knowledge, beliefs and activities about critical thinking. . The study followed the descriptive approach. This research was based on a questionnaire designed to investigate English teachers' points of view about critical thinking for primary and secondary schools in Qasabet Al Mafraq which is a city in the north of Jordan The population of the study is 280 female and male teachers distributed through 160 primary and secondary school. The study sample was randomly selected and it represents 46% of all English teachers in Qasbet Al Mafraq. They are 40 male and 88 female teachers during the second semester 2018/2019. The results of the study indicate that most of the teachers know the higher and lower –order of critical thinking skills. Also, they are inclined to use the critical thinking strategy to achieve certain outcomes in the curriculum. According to the teachers' beliefs, they think critical thinking is an important and effective strategy for problem solving and decision making. On one hand, there is a positive correlation between teacher's knowledge, teachers' belief and critical thinking activitie such as role- playing, asking questions, problem- solving, conceptual maps, debate and game playing. But on the other hand, there are no statistically significant differences at (a= 0.05) due to the variables of gender, experience, number of students, and the stage they are teaching. The researcher recommends that more research should be done on the effect of critical thinking on the four skills reading, writing, speaking and listening.


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