scholarly journals Exploring Mathematical Critical Thinking Skills of Yogyakarta Junior Secondary School Students

2018 ◽  
Vol 8 (1) ◽  
pp. 29-38
Author(s):  
Elsa Susanti ◽  
Endah Retnowati
Keyword(s):  
High School Students ◽  
Critical Thinking ◽  
Mathematics Learning ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Research Subjects ◽  
School Students ◽  
Evaluation Standard ◽  
Junior Secondary Schools ◽  
Junior Secondary

This article explores the skills and difficulties in critical thinking of junior Indonesian high school students in mathematics learning. Fifty students of grade IX who were purposive randomly selected from state junior secondary schools in Yogyakarta City were involved as the research subjects. The data were obtained from the test of mathematical critical thinking on the material of geometry. The test consisted of four items that describe each aspect of critical thinking skills, namely interpretation, analysis, evaluation, and inference. The analysis was done by showing the steps of the students ‘answers. The result indicated that the average of the aspects of mathematical critical thinking of students were on the high criteria with students’ greatest difficulties being in the analysis standard. Meanwhile,the average student success in the interpretation standard was 82%, the standard of the analysis was 46.25%, the evaluation standard was 78.25%, and the inference standard was 77%. Furthermore, from the results of the sample students’ exploration answers, it is expected that future teaching should not only focus on fluency in calculation but also on training the students in how to explain the solution steps of the problem solving process as this is important part in critical thinking.

scholarly journals Proses berpikir kritis matematis siswa sekolah menengah pertama melalui discovery learning

2019 ◽  
Vol 6 (1) ◽  
pp. 99-117
Author(s):  
Purnama Mulia Farib ◽  
M. Ikhsan ◽  
Muhammad Subianto
Keyword(s):  
High School Students ◽  
Critical Thinking ◽  
Junior High School ◽  
Mathematics Learning ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Discovery Learning ◽  
Research Subjects ◽  
School Students ◽  
Data Presentation

Penelitian ini bertujuan untuk mendeskripsikan proses berpikir kritis matematis dan mengidentifikasi tingkat berpikir kritis matematis siswa yang diberikan pembelajaran discovery pada pembelajaran matematika. Penelitian ini menggunakan metode penelitian kualitatif. Subjek penelitian adalah 6 orang siswa yang diambil dari 37 siswa kelas VII-E MTsN 3 Aceh Barat yang dipilih berdasarkan kemampuan awal matematikanya. Instrumen penelitian meliputi peneliti, tes berpikir kritis, dan pedoman wawancara. Teknik pengumpulan data yang digunakan terdiri dari tes berpikir kritis dan wawancara. Teknik analisis data yang digunakan pada penelitian ini yaitu reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa dalam aktivitas penyelesaian masalah siswa lebih banyak melakukan proses specializing dan generalizing. Siswa telah mampu mengidentifikasi masalah yang disajikan serta menyusun langkah penyelesaian yang mungkin untuk menyelesaikan masalah tersebut, namun pada proses conjecturing dan convincing, siswa masih perlu dilatih untuk menganalogikan masalah serta menyelesaikan masalah dengan cara yang beragam. Temuan penelitian ini dapat digunakan guru untuk merancang pembelajaran matematika yang melatihkan kemampuan berpikir kritis.The process of mathematical critical thinking of junior high school students through discovery learning AbstractThis study aimed to describe the process of mathematical critical thinking of students who were given discovery learning in mathematics learning. This study was classified as qualitative research. The research subjects were 6 students drawn from 37 students of class VII-E MTsN 3 Aceh Barat, Indonesia, and selected based on their initial mathematical abilities. The research instruments included researchers, critical thinking test, and interview guidelines. The data collection was carried out by giving a critical thinking test conducted after discovery learning and interviewing the research subjects after completing the test. The data in this study were analyzed by data reduction, data presentation, and conclusion drawing. The results showed that in solving problems, students were more dominant in the process of specializing and generalizing. Students have been able to identify the problem presented and arrange possible steps for solving the problem, but in the process of conjecturing and convincing, students still need to be trained in analogizing problems and solving problems in a variety of ways. The findings of this study could be used by teachers to design mathematics learning that exercises critical thinking skills.

scholarly journals The Practicality of Macromedia Flash-Based Learning Media to Improve Students Critical Thinking Skills Senior High School Students

2020 ◽  
Vol 2 (2) ◽  
pp. 83
Author(s):  
Hairullah Aminudin ◽  
Mochamad Arief Soendjoto ◽  
Atiek Winarti
Keyword(s):  
High School ◽  
High School Students ◽  
Critical Thinking ◽  
Thinking Skills ◽  
Senior High School ◽  
Critical Thinking Skills ◽  
Research Subjects ◽  
School Students ◽  
Student Responses ◽  
Senior High School Students

Interactive learning resources contribute to the success of the learning process and students' critical thinking skills but have not been developed equally in every subject. This study aims to obtain the practicality of Macromedia Flash in improving the critical thinking skills of Kurau 1 State Senior High School students. This type of research is a Tessmer formative test with research subjects of 30 students of Kurau 1 State Senior High School. The research data were analyzed descriptively, practicality data included the use of instructional media and student responses, showing that Macromedia Flash was developed practical for used in learning and could improve the critical thinking skills of senior high school students.AbstrakSumber belajar interaktif memberikan kontribusi terhadap kesuksesan proses pembelajaran dan kemampuan berpikir kritis siswa, akan tetapi belum dikembangkan secara merata pada setiap mata pelajaran. Penelitian ini bertujuan untuk mendapatkan kepraktisan Macromedia Flash dalam meningkatkan keterampilan berpikir kritis siswa SMAN 1 Kurau. Jenis penelitian yang digunakan adalah uji formatif Tessmer dengan subjek penelitian 30 siswa SMAN 1 Kurau. Data penelitian dianalisa secara diskriptif, data kepraktisan meliputi keterlaksanaan penggunaan media pembelajaran dan respon siswa, menunjukkan bahwa Macromedia Flash yang dikembangkan praktis untuk digunakan dalam pembelajaran serta dapat meningkatkan kemampuan berpikir kritis siswa SMA.

scholarly journals PENINGKATAN KEMAMPUAN BERFIKIR KRITIS MATEMATIS SISWA MELALUI MODEL PEMBELAJARAN BERBASIS MASALAH

2019 ◽  
Author(s):  
Taufik Rahman
Keyword(s):  
High School ◽  
High School Students ◽  
Critical Thinking ◽  
Mathematical Thinking ◽  
Mathematics Learning ◽  
Problem Based Learning ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
School Students ◽  
National Education

The ability analyzed in this study is the ability to think critically mathematically. This ability is considered very important as written is the goal of mathematics learning from the Ministry of National Education which states that the development of critical thinking skills is the focus of learning and becomes one of the graduation standards of high school students. It is desirable, high school graduates, have the ability to think logically, analytically, systematically, critically, and creatively, and have the ability to work together. This study aims to determine the improvement of mathematical critical mathematical thinking skills of students in one of the Vocational Schools in Bandung between those who obtain problem-based learning with those who obtain conventional learning. The sample in this study was one Vocational School in Bandung, which was selected by 2 classes, namely the first class obtained problem-based learning and the second class received conventional learning. The method in this study is a quasi experiment. The instrument in this study was a test instrument in the form of a description and consisted of 6 questions. The results of this study are improved mathematical critical thinking skills of students who get problem-based learning better than students who get conventional learning

scholarly journals The Effectivenes of Local Wisdom-Based Science Teaching Materials in Improving High School Students Critical Thinking Skills

Mangifera Edu ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 141-149
Author(s):  
Krisianti Ayu Monita ◽  
Erlia Narulita ◽  
Aris Singgih Budiarso
Keyword(s):  
High School ◽  
High School Students ◽  
Critical Thinking ◽  
Science Teaching ◽  
Thinking Skills ◽  
T Test ◽  
Critical Thinking Skills ◽  
Teaching Materials ◽  
School Students ◽  
Gain Score

In 21st century learning, critical thinking skills are the main choice that must be mastered by students. This study aims to determine the effectiveness of local wisdom-based science teaching materials in improving junior high school students’ critical thinking skills. Most science teachers still apply teacher-centered learning, so students tend to be passive. This type of research is quasi-experimental with a pretest-posttest control group design. The study was conducted in the even semester of the 2019/2020 school year. The subjects of the research were grade VII students. Data collection techniques and instruments in the form of tests that include indicators of critical thinking skills. Data analysis used homogeneity test, Kolmogorov Smirnov normality test, independent sample t-test, and n-gain score. The results of the independent sample t-test are sig. (2-tailed) = 0,000<sig. α = 0.05. Students’ critical thinking skills in the experimental class were higher (N-gain score = 39.09%) than in the control class (N-gain score = 12.03%). Based on the study results, it can be concluded that there is a significant influence on the application of local wisdom-based teaching materials in improving the critical thinking skills of middle school students in the moderate category.

scholarly journals The Implementation of Portfolio Assessment to Increase Critical Thinking Ability for High School Students on Human Coordination System Material

2021 ◽  
Vol 9 (3) ◽  
pp. 130-136
Author(s):  
Annisa Tiara Linanti ◽  
Saiful Ridlo ◽  
Siti Harnina Bintari
Keyword(s):  
High School Students ◽  
Critical Thinking ◽  
Portfolio Assessment ◽  
Deep Understanding ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Control Group ◽  
School Students ◽  
Control Group Design ◽  
Coordination System

Critical thinking has an essential role in the development of 21st-century skills to form students who have a deep understanding of the subject being studied. The use of portfolio assessment is believed to be a means of mastering a subject. This study was aimed to analyze whether the implementation of portfolio assessment in Biology learning in human coordination systems material can improve students' critical thinking skills. This study used a pretest and posttest control group design. Based on the results of the analysis, it was found that the means posttest score of students' critical thinking skills in the experimental class was 78.28, and the control class was 63.36. The Independent Sample T-Test showed a significant mean difference between the experimental class and the control class. The improvement of critical thinking skills by implementing portfolio assessment was better than the control class. The regression test showed that the contribution of the portfolio assessment to the improvement of critical thinking skills was 19.1%. The results of the analysis showed that the portfolio assessment distributed students in three categories of critical thinking skills were 59.4% in the enough category, 31.3% in the good category, and 9.4% in the very good category. The conclusion is that the implementation of portfolio assessment has a positive effect on increasing students' critical thinking skills in the human coordination system material.

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