scholarly journals HOW DOES THE STUDENTS’ CRITICAL THINKING ABILITY IN GEOMETRY OPTICS?

2018 ◽  
Vol 7 (2) ◽  
Author(s):  
Fery Hadi Sutrisno ◽  
Supriyono Koes Handayanto ◽  
Edi Supriyana ◽  
Rusna Laksmisari

One of the abilities that must be possessed by students in the 21st century is the ability to think critically. This article aims to analyze students' critical thinking skills in geometric optical materials. This research is descriptive research with subject of research consisted 116 student grade 12 SMA. The critical thinking skills test instrument consists of 12 items about the description of geometric optical material with reliability coefficient of 0.701. The results of this study indicate that the average ability of critical thinking students 14.54 of scale 100 with the highest score of 48 and the lowest value 1.3. This shows that students' critical thinking skills are still in the low category. The weakest aspect of critical thinking ability is argument analysis. Need efforts to improve students' critical thinking skills, one of them is by applying learning that requires students actively in solving problems.

2020 ◽  
Vol 3 (1) ◽  
pp. 7-11
Author(s):  
Jussi Agustine ◽  
Nizkon Nizkon ◽  
Sulton Nawawi

This study aims to determine the critical thinking skills of class X science students in Talang Ubi District on virus material. Type of quantitative descriptive research. The population of all students of class X Science in Talang Ubi District. The sample used in class X IPA 1 in SMA Negeri 1 Talang Ubi, SMA Negeri 2 Unggulan Talang Ubi, and SMA YKPP Pendopo. Data collection techniques using purposive sampling. Retrieval of data using instruments about the ability to think critically on virus material using the framework developed by Facione (2013), consist of five indicators namely: interpretation, analysis, evaluation, inference, explanation, and self-regulation. The results of the study of Critical Thinking Ability in the District of Talang Ubi can be categorized as low, with a percentage value of 59.26%. For the average number of indicators obtained in Talang Ubi District, namely: interpretation indicator has a percentage of 87.94%, and analytical indicator of 60.27%, and evaluation indicator of 45.52%, an inference indicator of 52.83%, an explanatory indicator by 40.00% and self-regulation indicators by 69.01%. This study can be concluded that the critical thinking ability of high school students of class X IPA in Talang Ubi sub-district on virus material is categorized as low. These results indicate that strategies, teaching materials, and learning media need to be developed to facilitate students' thinking skills.


Author(s):  
Syahrial Ayub ◽  
Gusti Afifah ◽  
Ni Nyoman Sri Putu Verawati ◽  
Hikmawati Hikmawati

ABSTRAKMengajar berpikir kritis kepada peserta didik di sekolah menengah telah menjadi perhatian dalam beberapa dekade terakhir.  Pembelajaran menggunakan model student oriented diharapkan mampu menggerakkan peserta didik berpikir kritis dan selanjutnya melakukan investigasi dalam pembelajaran. Penelitian ini bertujuan menganalisis kemampuan berpikir kritis peserta didik dalam pemecahan masalah fluida dinamis dengan model pembelajaran student oriented. Tujuan ini akan dicapai dengan melakukan penelitian eksperimen dengan desain one group pretest-postest. Penelitian melibatkan 17 peserta didik kelas XI MIPA 8 di SMA Negeri 2 Mataram yang menjadi sampel penelitian. Kemampuan berpikir kritis diukur menggunakan 10 instrumen tes yang berbentuk essay. Instrumen tes yang digunakan telah teruji validitas dan reliabilitasnnya. Data kemampuan berpikir kritis dianalisis secara deskriptif dan statistik. Hasilnya menunjukkan bahwa penerapan model pembelajaran student oriented pada pemecahan masalah fluida dinamis pada peserta didik mampu meningkatkan kemampuan berpikir kritis dan hasil belajarnya. Kata kunci : kemampuan berpikir kritis; model pembelajaran student oriented ABSTRACTTeaching critical thinking to secondary school has been a concern in the last few decades. Learning using the student-oriented model is expected to be able to move students to think critically and then carry out investigations in learning.The experimental research with one group pretest-posttest design. This research involving 17 students of class XI MIPA 8 at SMA Negeri 2 Mataram as a research sample. Critical thinking ability were measured using 10 essay test items. The test instrument used has been tested for validity and reliability. The data of critical thinking ability were analyzed descriptively and statistically. The results showed that the application of the student-oriented learning model to solving dynamic fluid problems in students was able to improve their critical thinking skills and learning outcomes. Keywords: critical thinking ability; student oriented learning model


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.


2020 ◽  
Vol 3 (2) ◽  
pp. 114
Author(s):  
Oktariani Oktariani ◽  
Asyti Febliza ◽  
Nurul Fauziah

This research was conducted to identify and describe prospective teachers’ critical thinking skills profile as readiness to face the industrial revolution 4.0. This research was a descriptive research. Research subjects were  chemistry education students who are prospective chemistry teachers. The instruments used in this study were the Critical Thinking Ability Test and Critical Thinking Ability Questionnaire. The instrument used is valid and reliable. The results of the study showed that the critical thinking skills of prospective chemistry teacher students are still in sufficient criteria with average score 46,7. It was also found that students' critical thinking skills in 5th  semester  were better than those in semester 3rd and 1st with average score 57,46 and 41. This result was also supported by differences in student performance for each indicator of critical thinking skills. Chemistry students show better performance on indicators of building basic skills compared to other critical thinking skills indicators. Meanwhile, the indicators on building strategies and tactics of chemistry education students still showed  poor performance than other indicators. This needs to be improved immediately in order to prepare prospective chemistry teachers who are ready to compete in facing the industrial revolition 4.0. Improvements can be made by designing learning methods, teaching materials and evaluation tools that can improve students' critical thinking skills.Keywords: critical thinking skill, education 4.0., prospective chemistry teachers, revolutioanl industry 4.0ABSTRAK.Penelitian ini dilakukan untuk mengidentifikasi dan mendeskripsikan profil keterampilan berpikir kritis calon guru kimia sebagai kesiapan dalam menghadapi revolusi industri 4.0. Penelitian ini merupakan penelitian deskriptif. Subjek penelitian merupakan mahasiswa pendidikan kimia yang merupakan calon guru kimia. Instrumen yang digunakan dalam penelitian ini adalah tes keterampilan berpikir kritis dan kuisioner keterampilan berpikir kritis. Instrumen yang digunakan sudah valid dan reliabel.  Hasil penelitian menunjukkan bahwa keterampilan berpikir kritis calon guru kimia masih berada pada kriteria cukup yaitu dengan skor rata-rata 46,7. Selain itu juga ditemukan bahwa keterampilan berpikir kritis mahasiswa semester 5 lebih baik dibandingkan semester 3 dan semester 1 dengan skor rata-rata masing-masingnya yaitu 57, 46 dan 41.  Hasil ini juga didukung dengan adanya perbedaan performa mahasiswa untuk masing-masing indikator keterampilan berpikir kritis. Calon guru kimia menunjukkan  performa yang lebih baik pada indikator membangun keterampilan dasar dibandingkan dengan indikator keterampilan berpikir kritis lainnya. Sementara itu, pada indikator membangun strategi dan taktik calon guru kimia masih menunjukkan performa yang kurang baik dibandingkan dengan indikator yang lainnya. Hal ini perlu segera diperbaiki guna mempersiapkan calon guru kimia yang siap bersaing menghadapi era revolusi industri 4.0. Perbaikan dapat dilakukan dengan cara merancang metode pembelajaran, bahan ajar dan alat evaluasi yang dapat mengasah keterampilan berpikir kritis peserta didik. Kata kunci: calon guru kimia, keterampilan berpikir kritis, pendidikan 4.0, revolusi industri 4.0


2017 ◽  
Vol 2 (1) ◽  
pp. 17-22
Author(s):  
Furi Chorina Agustin ◽  
Yudi Dirgantara ◽  
Ade Yeti Nuryantini

This study originated from the lack of utilization of learning media during the learning process. Teaching methods used by teachers are less varied so that learners are only trained in cognitive abilities only while for high-level thinking skills such as critical thinking ability is still low. One alternative that can be done to improve the skills of critical thinking is to utilize the Software Tracker media. This study aims to determine the improvement of critical thinking skills of learners through the use of Software Tracker media on the material impulse and momentum. The research method used is Pre-Experiment with design One-Group Pretest-Posttest Design. The sample of this research using Purposive Sampling technique. The research instrument used in this research is the critical thinking skills of the students of impulse material and momentum to measure the critical thinking ability of learners. The data analysis technique uses normality test, and t test to normalized n-gain value from pretest and posttest value of learners using Microsoft Excel. The results showed that the critical thinking skills of learners increased after utilizing the Software Tracker media during learning. The result of this research is proved from the significant value of ttable test of 1.691 while t count is 24.53 which means H0 is rejected and Ha accepted. The results of this study indicate that the use of Software Tracker media on the material impulse and momentum have a positive impact on improving the critical thinking skills of learners.


2018 ◽  
Vol 2 (2) ◽  
pp. 124-132
Author(s):  
Mesia Dewi Hasanah ◽  
Heffi Alberida ◽  
Yosi Laila Rahmi

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.


2017 ◽  
Vol 1 (2) ◽  
pp. 121
Author(s):  
Shanta Rezkita ◽  
Nadziroh Nadziroh ◽  
Endah Marwanti

The demand of KKNI curriculum in the 21st century is about the equality of learning achievement covering attitudes and values, work ability, scientific mastery, authority and responsibility. For that, PGSD graduates of Sarjanawiyata Tamansiswa University (UST) Yogyakarta are expected to be able to design the learning activities, which is in line with the development of science, and technology, which is on the same time, are able to bring Indonesian cultural value into it. The graduates’ competence are presented in their abilities to develop elementary school learning activities based on the Science Environment Technology and Society (SETS) and integrate local wisdom into it. The purpose of this research is to describe the skills of critical thinking of PGSD students in developing SETS-based learning integrated with local wisdom and also along with the indicators that appear in each skill aspect. This is a type of quantitative descriptive research with non-test data collection techniques, observation, and documentation. While the main instruments are in the form of Student Worksheet (LKM), the observation sheet towards the indicators of critical thinking skills. Data analysis techniques is done by using descriptive statistics interpretation through several answering criteria: very good, good, fair, poor, and very poor which is then the results are presented in the form of tables. The results showed that the average critical thinking ability of PGSD UST students was 69.24% with can be categorized in good criteria. Indicator of every critical thinking skills aspect has appeared, even though some targets of achievements have not been optimally gained yet.


2017 ◽  
Vol 6 (2) ◽  
pp. 234 ◽  
Author(s):  
Muhammad Ikhsan ◽  
Said Munzir ◽  
Lia Fitria

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.


2021 ◽  
Vol 12 (1) ◽  
pp. 23
Author(s):  
Nia Alfitriyani ◽  
Indarini Dwi Pursitasari ◽  
Surti Kurniasih

This research aims to develop a science learning module based on Socio Scientific Issues on biotechnology materials that can improve students' critical thinking skills. This research is an R&D research with a 4-D design. Validation is carried out by science experts and teachers. The module readability test and the students' responses to the module were obtained using a close test and questionnaire. Data analysis was performed descriptively quantitatively. The results of the module validation by expert lecturers obtained 89% and an average CVI value of 0.98 with a very valid category and was suitable for use. The module readability test results were 42.22% with the instructional level category indicating that the modules needed to be learned. The results of the N-Gain test for critical thinking ability is 0.59, the module is in the moderate category and the students' response value to the module by 87.50% showed the response in the very good category to the use of module-based SSI in learning to improve critical thinking skill.


2015 ◽  
Vol 4 (2) ◽  
pp. 55
Author(s):  
Ferawati Hutapea ◽  
Motlan .

The purpose of research are 1). To know are differences in science process skills of students with the applied of inquiry training learning model and direct instruction learning models, 2). To know are differences in science process skills of students who has high critical thinking ability and the  critically low ability, 3). To know the interaction inquiry training learning model and critical thinking ability toward students science process skills. The samples in this research conducted by cluster random sampling and  as many as two class , the first class (X-I) as experiment applied Inquiry Training learning model and the second class (X-2) as control class applied Direct Intruction learning model. The instrument used in this research is tests science process skills and critical thinking skills in the form of description and observation sheets science process skills. From these results it can be concluded that: 1) there are differences in students science process skills with applied inquiry training model and direct intruction model, 2) science process skills of students with high critical thinking ability is better than the science process skills of students with the ability to think critically low, and 3) the interaction inquiry training learning model and critical thinking ability toward the science process skills.


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