scholarly journals PENGARUH PENERAPAN PENDEKATAN KONTEKSTUAL TERHADAP KEMAMPUAN BERPIKIR KRITIS MATEMATIS SISWA SMP

2016 ◽  
Vol 5 (1) ◽  
Author(s):  
Usep Suwanjal
Keyword(s):  
Critical Thinking ◽  
Thinking Skills ◽  
T Test ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Contextual Approach ◽  
Equivalent Control ◽  
Sample Technique ◽  
Class Viii ◽  
The One

Critical thinking skills of mathematics mastered by students is very important, especially in the competition of globalitation era. An approach that can improve both of them is contextual approach in learning. This research aims are to determine: The Improvement of students' critical thinking skills between the class which used contextual approach in learning and the one which used conventional learning. Quasi-experiment methods was used in the research  and the design was "pretest-posttest non equivalent control group". Population of this research was the students of SMP Negeri 3 Menggala and class VIII C and VIII D as the research sample, technique of samples used purposive sampling. Data collected by the instrument test critical thinking of mathematics. The improvement of critical thinking skills data analysed by using the t- test. The findings of this study indicated:  The Improvement of students' critical thinking skills between the class which used contextual approach in learning was better than which used conventional learning. In table t-test indicated sig < α is 0.001 < 0.05Keywords : contextual approach, critical thinking skills of mathematics

scholarly journals Implementasi LKPD Berbasis STEM untuk Meningkatkan Keterampilan Berpikir Kritis Peserta Didik

2021 ◽  
Vol 9 (4) ◽  
pp. 555-564
Author(s):  
Safiratul Fithri ◽  
Andi Ulfa Tenri Pada* ◽  
Wiwit Artika ◽  
Cut Nurmaliah ◽  
Hasanuddin Hasanuddin
Keyword(s):  
Critical Thinking ◽  
Learning Process ◽  
Thinking Skills ◽  
T Test ◽  
Critical Thinking Skills ◽  
Excretory System ◽  
Control Group ◽  
Multiple Choice Questions ◽  
Purposive Sampling ◽  
Class Viii

The learning process only focuses on the material by memorizing concepts, students have not utilized worksheets to do practical work optimally, so the biology learning process in schools does not encourage students to practice critical thinking skills. This study aimed to determine the effect of implementing STEM-based student worksheets in improving students' critical thinking skills at SMP Negeri 1 Peusangan, Bireuen Regency. This study used a pretest-posttest control group design. The study population was 88 VIII grade students of SMP Negeri 1 Peusangan. The research sample consisted of 67 students. The sample is determined through the purposive sampling technique. The researcher determines the class of the research sample using purposive sampling. The taking of the experimental class and the control class is determined by looking at the standard deviation of the results of the homogeneous pretest of students (the ability of homogeneous students). Critical thinking skills are measured by multiple-choice questions with reason. It is used to determine the increase and difference in the critical thinking skills of students. Analysis of N-Gain test data, paired sample t-test, and independent sample t-test. The results showed that the implementation of STEM-based LKPD could improve students' critical thinking skills on excretory system material in class VIII of SMP Negeri 1 Peusangan. In addition, there are differences in the KBK of students between the experimental class and the control class on the excretory system concept in class VIII of SMP Negeri 1 Peusangan.

Pengaruh Penerapan Pendekatan Kontekstual Terhadap Kemampuan Berpikir Kritis Matematika Siswa SMP St.Thomas 1 Medan

2018 ◽  
pp. 10-24
Author(s):  
Elsa Manora Br. Barus
Keyword(s):  
Critical Thinking ◽  
Junior High School ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Coefficient Of Determination ◽  
Control Group ◽  
Homogeneity Test ◽  
Contextual Approach ◽  
Control Group Design ◽  
Class Viii

The study aimed to determine the effect of applying a contextual approach to students' critical thinking skills in mathematics on cube and beam material. This research is a quasi-experimental quantitative research design with pretest-posttest control group design. The population in this study were eighth-grade students at Junior High School of  St. Thomas 1 Medan. The sample in the study was selected by random sampling consisting of the experimental class (VIII-D) and the control class (VIII-E). The pretest and posttest results were analyzed using the normality and homogeneity test and the results showed that the samples were normally distributed and homogeneous. Furthermore, a correlation and regression test was conducted to describe the relationship between contextual approaches and students' critical thinking skills. Based on correlation and regression analysis, the results obtained that the application of the contextual approach has a positive effect with the correlation coefficients of the experimental class and the control class respectively 0.914 and 0.860 and the coefficient of determination is 83.5% and 73.9% respectively. So that the application of a contextual approach has a better effect on students' critical thinking skills compared to conventional learning. Based on the results of the calculation of the test of the difference in the two average mathematical critical thinking skills obtained by tcount = 2.113 > ttable = 1.99, then the hypothesis Ho is rejected. So it is concluded that the average increase in critical thinking skills of students who get learning with contextual approaches is higher than students who get conventional learning.

scholarly journals Implementation Cooperative Learning Type STAD Assisted Edmodo in Improving Students' Critical Thinking Skills

2020 ◽  
Vol 3 (1) ◽  
pp. 30
Author(s):  
Muhamad Epi Rusdin ◽  
Widodo Widodo ◽  
Guntur Maruto
Keyword(s):  
Critical Thinking ◽  
Cooperative Learning ◽  
Thinking Skills ◽  
Learning Model ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Class Viii ◽  
Learning At Home

The STAD cooperative learning model can support active, independent and responsible learning for students. The application of this model is expected to improve students' critical thinking skills. The purpose of this study was to determine the improvement of students' critical thinking skills using Edmodo-assisted learning models. Edmodo was modified to become a teacher tool to expand learning at home. This research is an experimental study using a pretest-posttest control group design involving 39 students of class VIII MTs At-Taqwa Beru, Sikka, East Nusa Tenggara. Based on the results of the study it was found that the Edmodo-assisted STAD type cooperative learning model can improve students' critical thinking skills.

scholarly journals ACTUATING READING COMPREHENSION THROUGH GENRE-BASED DIRECTED READING THINKING ACTIVITIES (G-BDRTA) VIEWED FROM CRITICAL THINKING SKILLS

2020 ◽  
Vol 8 (4) ◽  
pp. 402
Author(s):  
Ahmad Hanan ◽  
Muhammad Muhlisin ◽  
Taufik Suadiyatno
Keyword(s):  
Reading Comprehension ◽  
Critical Thinking ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Control Group Design ◽  
Equivalent Control ◽  
Directed Reading ◽  
Reading Activities ◽  
Student Team

The significance of reading comprehension for learners’ English mastery makes English teachers need to help learners to activate their background knowledge related to texts being read and promote the use of reading techniques. In this study, researchers applied the genre-based directed reading thinking activities (G-BDRTA). Genres here are oriented to provide learners with various text types for reading activities. Consequently, this study was aimed at actuating learners’ reading comprehension through genre-based directed reading thinking activities (G-BDRTA) viewed from critical thinking skills. This study was classified as an experimental study using non-equivalent control group design. This study was conducted at SMAN 1 Lingsar. There were 62 learners involved in this study. The learners were divided into two groups and each group embraces 31 learners. One group becomes an experimental group which is subjected to the G-BDRTA strategy and the other group is subjected to the control group treated using student-team-learning (STL) strategy. To find out the data, researchers used a reading test and critical thinking test as research instruments. Then, the data were analyzed using Two-Way-ANOVA. Based on the data analysis, there is a significant effect of G-BDRTA strategy on students’ reading comprehension viewed from critical thinking skills.

scholarly journals The Effect of Problem Based Learning Model on Critical Thinking Ability of Students on Additives and Addictive Substances Class VIII SMPN 12 Padang

2018 ◽  
Vol 2 (2) ◽  
pp. 124-132
Author(s):  
Mesia Dewi Hasanah ◽  
Heffi Alberida ◽  
Yosi Laila Rahmi
Keyword(s):  
Critical Thinking ◽  
Research Result ◽  
Problem Based Learning ◽  
Thinking Skills ◽  
Learning Model ◽  
T Test ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Critical Thinking Ability ◽  
Thinking Ability

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.

Analysis of Students' Critical Thinking Skills in terms of Gender Using Science Teaching Materials Based on The 5E Learning Cycle Integrated with Local Wisdom

2021 ◽  
Vol 10 (2) ◽  
pp. 187-199
Author(s):  
A. Ramdani ◽  
A. W. Jufri ◽  
G. Gunawan ◽  
M. Fahrurrozi ◽  
M. Yustiqvar
Keyword(s):  
Critical Thinking ◽  
Science Teaching ◽  
Thinking Skills ◽  
Female Students ◽  
T Test ◽  
Critical Thinking Skills ◽  
Learning Cycle ◽  
Teaching Material ◽  
Control Group ◽  
Male And Female

Critical thinking is an important thing in building learners' knowledge. Students who have these skills will be able to solve problems effectively. This study examines the effect of science teaching materials based on the 5E learning cycle integrated with local wisdom in terms of gender on students' critical thinking skills. This quasi-experimental research with a pre-test-post-test control group design was carried out at Madrasah Tsanawiyah. Purposive sampling was used to select the research sample, including an experiment and a control group of equal ability between male and female students. The data were analyzed using a t-test and N-gain test to determine the improvement of critical thinking skills in both groups. The results showed that this teaching material affected students' critical thinking skills by the results of the t-test. The difference in the improvement of students' critical thinking skills is significant based on the result of N-gain and categorized as high. Students become more critical in solving problems after study using 5E integrated by local wisdom. The result shows an impact of this teaching material on first to fourth indicators of critical thinking skills. The fifth indicator is not affected by this teaching material because of students' weakness in elaborate the solution. There were also significant differences in the improvement of male and female students' critical thinking skills. One of them is that male students have a quicker response and higher self-confidence than female students in solving the problems. Based on this result, we conclude that applying science teaching material with 5E integrated by local wisdom positively affects students' critical thinking skills.

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.

scholarly journals The Effect of Cognitive Acceleration Programme on Critical Thinking of Science Students at Secondary Level

2021 ◽  
Vol 7 (2) ◽  
pp. 87-100
Author(s):  
Shazia Sarwar ◽  
Muhammad Samiullah ◽  
Fazal-ur- Rahman
Keyword(s):  
Critical Thinking ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Control Group Design ◽  
Significant Difference ◽  
Equivalent Control ◽  
Cognitive Acceleration ◽  
Faculty Of Education ◽  
And Control

Abstract This study was conducted to determine the effect of Cognitive Acceleration Programme on the critical thinking skills of 9th graders. The posttest only non-equivalent control group design was used. Two sections of class 9th were selected conveniently for experimentation. There were 80 participants (girls) in the experiment. There were 30 intervention lessons in the experimental classrooms. The posttest was designed based on Cornell Critical thinking test. Test was validated by experts from the Faculty of Education, Allama Iqbal Open University Islamabad. The data were analyzed by the SPSS. The independent sample t-statistics were applied for control and experimental groups separately. The t-value for the comparison of performance of experimental and control group in sub-skills of critical thinking i.e., inference, deduction, assumption, interpretation, and argumentation showed significant difference. The results showed that critical thinking skills can be developed significantly through cognitive acceleration programme. So, the thinking science activities were recommended to science educators to incorporate into the classroom to accelerate critical thinking of students. Keywords: Cognitive Acceleration, Critical Thinking, Inference, Deduction, Assumption, Interpretation, Argumentation

scholarly journals PENGARUH MODEL PEMBELAJARAN INVESTIGASI KELOMPOK BERBANTUAN LKPD TERHADAP KEMAMPUAN BERPIKIR KRITIS MATEMATIKA SISWA KELAS VIII SMP NEGERI 2 SAWAN

2019 ◽  
Vol 8 (2) ◽  
pp. 60-67
Author(s):  
K. L Krisnahari ◽  
G.R. I. W. P Astawa ◽  
I. N Gita
Keyword(s):  
Critical Thinking ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Cluster Sampling ◽  
Test Results ◽  
Significance Level ◽  
Class Viii ◽  
Academic Year ◽  
Better Than

AbstrakPenelitian ini bertujuan untuk mengetahui pengaruh model investigasi kelompok berbantuan LKPD terhadap kemampuan berpikir kritis matematika siswa kelas VIII SMP Negeri 2 Sawan. Jenis penelitian ini adalah penelitian eksperimen semu. Populasi dalam penelitian ini adalah seluruh siswa kelas VIII SMP Negeri 2 Sawan tahun ajaran 2018/2019. Sampel penelitian ditentukan dengan teknik sampel rumpun  dan didapatkan 2 kelas sampel, yaitu kelas VIIIA sebagai kelas eksperimen dan kelas VIIIB sebagai kelas kontrol. Instrumen penelitian berupa tes kemampuan berpikir kritis berupa empat butir soal uraian. Data hasil tes kemampuan berpikir kritis matematika dianalisis menggunakan uji-t satu ekor dengan taraf siginifikansi 5%. Hasil penelitian  menunjukkan bahwa sehingga  ditolak. Ini berarti, kemampuan berpikir kritis matematika siswa yang dibelajarkan dengan model pembelajaran investigasi kelompok berbantuan LKPD lebih baik daripada kemampuan berpikir kritis matematika siswa yang dibelajarkan dengan  pembelajaran konvensional. Dengan demikian, dapat disimpulkan bahwa terdapat pengaruh model pembelajaran investigasi kelompok berbantuan LKPD terhadap kemampuan berpikir kritis matematika siswa. Kata kunci: Investigasi kelompok, LKPD, kemampuan berpikir kritis AbstractThis study aims to determine the effect of the LKPD-assisted group investigation model on mathematical critical thinking skills of students at SMPN 2 Sawan. The type of this study was a quasi-experiment. The population of this study is all students of class VIII SMPN 2 Sawan in the academic year 2018/2019. The samples were determined by cluster sampling and acquired 2 sample class, grade VIIIA  as experimental group and grade VIIIB as control group. The research instrument consisted of a critical thinking skills test in the form of four item  description.  Data from the test results of mathematical critical thinking ability were analyzed using one-tailed t-test with a significance level of 5%. The result showed that the was rejected. This means that mathematical critical thinking abilitifes who are taught by group investigation model supported by LKPD are better than students mathematica critical thinking abilitifes taught by conventional learning, so it can be conclude that there is an effect of group investigation learning model supported by LKPD to students mathematical critical thinking abilities.Keywords: Group investigation model, LKPD, mathematical critical thinking skill 

PENGEMBANGAN MEDIA PEMBELAJARAN LKS BERBENTUK CROSSWORD PUZZLE PADA TEMA SISTEM PENCERNAAN UNTUK MENINGKATKAN BERPIKIR KRITIS SISWA

2019 ◽  
Vol 2 ◽  
Author(s):  
Nelly Nirwanasari
Keyword(s):  
Critical Thinking ◽  
Data Processing ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Control Group Design ◽  
Crossword Puzzle ◽  
Class 1 ◽  
Quasi Experimental ◽  
Class Viii

Abstract. Innovation in learning media is needed to improve critical thinking skills. The media used are learning media Student Worksheets (LKS) in the form of puzzles to improve students' skills. The research method used in this study is the research and development method (R and D) in it, including the use of descriptive models. The implementation of the R & D method is divided into three steps, namely preliminary study, development and testing. For the population is class VIII at SMPN 2 Kota Tangerang Selatan. The sample used for the trial was limited to class VIII and extensive trials in class VIII A as control class 1 and VIII B as experimental class 2 with Quasi Experimental Design in the form of Matching Pretest-Postest Control Group Design. The results of data processing using SPSS Version 23, Anatest v.24 and Mc. Office Excel 2007. Based on the results of data processing, it was concluded that the development of Learning Media Student Worksheets (LKS) in the form of puzzles can be used by teachers as a tool to improve students' critical thinking skills. Keywords: Student Worksheets (LKS), Puzzles, improve critical thinking skills

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