scholarly journals Improving Students' Mathematical Critical Thinking Abilities Through the Problem Solving Method on the Sequences and Series Course

2019 ◽  
Vol 1 (7) ◽  
pp. 813
Author(s):  
Dahliana Dahliana ◽  
Marhami Marhami ◽  
Mursalin Mursalin
Keyword(s):  
Critical Thinking ◽  
Problem Solving ◽  
Sampling Technique ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
School Level ◽  
Control Group ◽  
High School Level ◽  
Control Group Design ◽  
Quasi Experimental

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.

scholarly journals The Effect of PhET-Assisted Problem Solving Method on Students' Critical Thinking skills

2021 ◽  
Vol 9 (1) ◽  
pp. 136
Author(s):  
Ni Nyoman Sri Putu Verawati ◽  
Hikmawati Hikmawati
Keyword(s):  
Critical Thinking ◽  
Data Analysis ◽  
Problem Solving ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Thinking Skills ◽  
T Test ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Control Group Design

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.

scholarly journals Penerapan Model Pembelajaran Contextual Teaching And Learning (Ctl) Dalam Meningkatkan Kemampuan Berpikir Kritis Peserta Didik Di Madrasah Bandar Lampung

2017 ◽  
Vol 8 (1) ◽  
pp. 45
Author(s):  
Saiful Bahri
Keyword(s):  
Critical Thinking ◽  
Teaching And Learning ◽  
Sampling Technique ◽  
Thinking Skills ◽  
Learning Model ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Control Group Design ◽  
Significance Level ◽  
Quasi Experimental

This study aims to determine the effect of the implementation of the inquiry type CTL learning model on critical thinking skills. The population in this study were eighth grade students of MTs. Al-Asy’ariyah Bandar Lampung Year 2015/2016. The research method used in this study is Quasi Experimental Design. The research design used in this quasi-experimental was the pretest-posttest control group design. The sampling technique is random sampling. The sample in this study consisted of two classes namely the experimental class and the control class. Data collection techniques in the form of tests to measure students' critical thinking skills and observations to observe behaviors that arise in students according to indicators of critical thinking skills. The results of hypothesis testing obtained thitung = 5.78, while ttabel at a significance level of 5% by 2.00, it can be said that thitung > ttabel. This shows that Ho is rejected and H1 is accepted, meaning that there is an influence of the inquiry type CTL learning model on students' critical thinking abilities.

scholarly journals Improving Elementary School Students’ Critical Thinking Skill in Science through HOTS-based Science Questions: A Quasi-Experimental Study

2021 ◽  
Vol 10 (3) ◽  
pp. 378-386
Author(s):  
Y. Sidiq ◽  
N. Ishartono ◽  
A. Desstya ◽  
H. J. Prayitno ◽  
S. Anif ◽  
...  
Keyword(s):  
Elementary School ◽  
Critical Thinking ◽  
Elementary School Students ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
School Level ◽  
Control Group ◽  
School Students ◽  
Control Group Design ◽  
Quasi Experimental

There have been many efforts to improve elementary school students’ critical thinking skills in science through various learning methods. However, only a few research results show efforts to improve critical thinking skills through HOTS-based science questions for elementary school students. Therefore, the purpose of this study is to test the effectiveness of student habituation with HOTS-based science questions in improving elementary school students’ critical thinking skills in science. Quasi-experimental methods were employed in this research with a nonequivalent control group design involving a treatment class and a control class. The treatment class gets treatment in HOTS-based science questions habituation during the learning process, while the control class in conventional approaches. A total of 60 students is from one of the elementary schools in Surakarta, Indonesia. To take data related to students’ critical thinking skills, they were given pretest and posttest where each test used HOTS-based science questions in an essay. The obtained data from the tests were then analyzed using descriptive and inferential statistical techniques. This study showed that the average of critical thinking skills in science of students in the experimental class was higher than the control class, with a positive mean difference of 0.4226. Based on these results, it is recommended that the results of this study can provide an overview to educational practitioners at the elementary school level and researchers in the field of science education related to efforts to improve elementary school students’ critical thinking skills in science through the habituation of HOTS-based science questions.

scholarly journals Deskripsi Kemampuan Berpikir Kritis Siswa SMA melalui Model Pembelajaran CLIS (Children Learning In Science) Berbantuan LKS pada Materi Elastisitas dan Hukum Hooke

2018 ◽  
Vol 9 (1) ◽  
pp. 21
Author(s):  
Metta Kisti Dewi Renjani ◽  
Susilawati Susilawati ◽  
Nur Khoiri
Keyword(s):  
Critical Thinking ◽  
Sampling Technique ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Control Group Design ◽  
Critical Thinking Ability ◽  
Thinking Ability ◽  
Quasi Experimental ◽  
And Control

The aims of this study is to determine the improvement of students' critical thinking skills based on the application of CLIS method (Children Learning In Science) LKS assisted on elasticity and Hooke Law in SMA Negeri 1 Jakenan Pati. This research was conducted at SMA N 1 Jakenan Pati dated October 13 until October 24, 2017. This research used Quasi Experimental design in the form of pretest-posttest control group design. Population in this research is all class XI IPA in SMA Negeri 1 Jakenan Pati, while sample of research used consist of two classes taken by cluster random sampling technique so that obtained class XI IPA 8 which amounted to 40 students as experiment class using  CLIS method (Children Learning In Science) assisted by LKS, and XI IPA 7, amounting to 40 students as control class using Direct Instruction learning model. Based on the result of the research obtained the mean of pretest experimental class is 55,2 and control class 49,45, while value of experimental class postest 79,1 and control class 68,7. The hypothesis testing shows that with t test s2 polled variance magnitude thitung = 19.5 and ttabel = 1.66. This indicates thitung > ttabel, so Ho is rejected which means there is increasing in the effectiveness of CLIS learning method (Children Learning In Science) assisted by LKS on students' critical thinking ability.

scholarly journals APPLYING THINK-TALK-WRITE (TTW) IN THE TEACHING OF READING COMPREHENSION IN RELATION TO STUDENTS’ CRITICAL THINKING SKILLS

2020 ◽  
Vol 7 (1) ◽  
pp. 57
Author(s):  
Fathurrahman Imran ◽  
Edi Firman ◽  
Sri Raudhatunnisa
Keyword(s):  
Reading Comprehension ◽  
Critical Thinking ◽  
Alternative Hypothesis ◽  
Sampling Technique ◽  
First Grade ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Control Group Design ◽  
Quasi Experimental

This research was aimed at finding out the effect of Think Talk Write (TTW) towards students’ critical thinking skills in reading comprehension at the first grade of SMKN 2 Lingsar. The research was experimental research. The design was quasi-experimental design by with nonequivalent control group design. The two classes were chosen as the samples in this research which consist of 32 students. They were chosen by using purposive sampling technique. The research instruments consist of reading tests and questionnaire. Reading test was employed in the form of a multiple choice and essay. Meanwhile, the questionnaire was used to attain the students’ critical thinking skills. In analyzing the data, researchers applied statistical analysis. It showed the value of t-test = 2,482 ≥ t-table = 1,697 at the significant level 5% (0.05). Based on the results of the analysis, it can be concluded that Think Talk Write has a positive effect on students' critical thinking in reading comprehension at first-grade student of SMKN 2 Lingsar. In other words, the alternative hypothesis (Ha) is accepted and null hypothesis (Ho) is rejected.

PERBEDAAN PENINGKATAN KETERAMPILAN BERPIKIR KRITIS SISWA PADA MATERI TERMOKIMIA MELALUI PEMBELAJARAN GROUP DAN INDIVIDUAL PROBLEM SOLVING

2017 ◽  
Vol 9 (2) ◽  
pp. 99
Author(s):  
St Fatimah Azzahra
Keyword(s):  
Critical Thinking ◽  
Problem Solving ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Learning Problem ◽  
Group Problem ◽  
Control Group Design ◽  
Group Design ◽  
Group Problem Solving

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

scholarly journals Kemampuan Berpikir Kritis dan Metakognisi Siswa dalam Menyelesaikan Masalah Matematika melalui Pendekatan Problem Solving

2017 ◽  
Vol 6 (2) ◽  
pp. 234 ◽  
Author(s):  
Muhammad Ikhsan ◽  
Said Munzir ◽  
Lia Fitria
Keyword(s):  
Critical Thinking ◽  
Problem Solving ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Control Group Design ◽  
Critical Thinking Ability ◽  
Group Design ◽  
Thinking Ability ◽  
Better Than

The aims of this study are to determine the improvement of critical thinking skills mathematical and metacognition of students who are taught with problem solving approach and the correlation between mathematical critical thinking and metacognition of students. This research is an experimental research with pretest-posttest control group design. The sample this research is the students of class VIII_2 and VIII_3 in SMP Negeri 1 Banda Aceh. Collecting data technique are test and nontest. Data were analyzed using t-test and correlation test. The result of the research shows 1) the critical thinking ability of the students who get the learning through problem solving approach is better than the students who get the conventional learning, 2) Metacognition of students who get the learning by using problem solving approach is better than the students who get the conventional learning, 3) a positive and significant relationship between students' metacognition and critical thinking skills.

scholarly journals PENGARUH TUTOR SEBAYA DALAM PEMBELAJARAN PROBLEM BASED LEARNING TERHADAP KETERAMPILAN BERPIKIR KRITIS FISIKA SISWA SMA

2020 ◽  
Vol 8 (1) ◽  
pp. 44
Author(s):  
Evi Durotun Nasihah ◽  
Supeno Supeno ◽  
Albertus Djoko Lesmono
Keyword(s):  
Critical Thinking ◽  
Peer Tutoring ◽  
Problem Based Learning ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Collaborative Group ◽  
Control Group ◽  
Control Group Design ◽  
Quasi Experimental ◽  
The Impact

The application of problem based learning in the classroom often experiences obstacles, primarily to teach high-level thinking skills, such as critical thinking skills. To overcome these obstacles, in this study we tried the use of peer tutors to guide their friends in a collaborative group when solving problems. This study aims to describe the impact of peer tutoring in problem-based learning on the critical thinking skills of high school physics students. This type of research is a quasi-experimental study with a pretest-posttest control group design. The sample of this research is class X MIPA 3 and X MIPA 4 SMAN 4 Jember. One class was given treatment using problem-based learning accompanied by peer tutoring, while one other class only used problem-based learning. Data about critical thinking skills were obtained from the posttest at the end of learning which was then analyzed using the Independent Sample T-test on SPSS 23. The statistical test results stated that there were differences between the average values of the experimental class and the control class. Thus, it is concluded that peer tutoring in the problem-based learning model has a significant effect on critical thinking skills. The essential aspect of thinking skills with the highest value lies in interpreting skills.

scholarly journals EFEKTIVITAS PROBLEM BASED LEARNING DAN PROJECT BASED LEARNING DITINJAU DARI KETERAMPILAN BERPIKIR KRITIS SISWA SD

2020 ◽  
Vol 3 (1) ◽  
pp. 51-56
Author(s):  
Retno Triningsih ◽  
Mawardi Mawardi
Keyword(s):  
Critical Thinking ◽  
Problem Based Learning ◽  
Thinking Skills ◽  
Learning Model ◽  
Project Based Learning ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Control Group Design ◽  
Significant Difference ◽  
Quasi Experimental

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.

scholarly journals Implementasi Model Problem Based Learning Dipadu LKPD Berbasis STEM untuk Meningkatkan Keterampilan Berpikir Kritis pada Materi Pencemaran Lingkungan

2021 ◽  
Vol 9 (1) ◽  
pp. 65-75
Author(s):  
Zainatul Hasanah ◽  
Andi Ulfa Tenri Pada* ◽  
Safrida Safrida ◽  
Wiwit Artika ◽  
Mudatsir Mudatsir
Keyword(s):  
Critical Thinking ◽  
Environmental Pollution ◽  
Learning Process ◽  
Sampling Technique ◽  
Thinking Skills ◽  
Learning Model ◽  
T Test ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Control Group Design

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.

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