scholarly journals Pengembangan Bahan Ajar Matematika Berbasis Scientific yang Berorientasi pada Kemampuan Berpikir Kritis Matematis Siswa

2019 ◽  
Vol 8 (1) ◽  
pp. 49-60
Author(s):  
Iik Nurhikmayati ◽  
M Gilar Jatisunda

AbstrakPenelitian ini bertujuan menghasilkan bahan ajar matematika berbasis scientific untuk siswa SMP yang memenuhi kriteria valid, praktis, dan efektif yang berorientasi pada kemampuan berpikir kritis matematis. Jenis penelitian ini adalah penelitian dan pengembangan (Research and Development, R&D) menurut Borg & Gall yang terdiri atas tiga langkah utama yaitu studi pendahuluan, desain produk serta pengembangan dan evaluasi. Subjek penelitian ini adalah siswa kelas VIII SMPN 1 Palasah dengan Instrumen berupa instrumen tes kemampuan berpikir kritis, lembar validasi para ahli, lembar penilaian kepraktisan dan angket respon siswa. Hasil penelitian menunjukkan bahwa bahan ajar matematika berbasis scientific yang dikembangkan telah memenuhi kriteria valid, praktis dan efektif ditinjau dari kemampuan berpikir kritis matematis. Uji perbedaan keefektifan ini menggunakan uji multivariat Hotteling’s Trace dan uji perbandingan keefektifan menggunakan uji statistik univariat between group yang menunjukkan bahwa bahan ajar berbasis scientific yang digunakan kelas uji coba lebih efektif dibandingkan bahan ajar buku paket biasa yang digunakan pada kelas kontrol.  Development of Mathematic Teaching Material Based on Scientific Oriented to the Mathematical Critical Thinking Ability of StudentAbstractThis study aims to produce scientific-based mathematics worksheets for junior high school students that meet the criteria of valid, practical, and effective oriented mathematical critical thinking skills. This is a research and development (R & D) according to Borg & Gall which consists of three main steps, namely preliminary study, product design and development and evaluation. The subjects of this study were the eighth grade students of SMPN 1 Palasah with instruments in the form of critical thinking ability tests, expert validation sheets, practicality assessment sheets and student response questionnaires. The effectiveness of teaching materials is shown based on the percentage of the number of students who are at least in the good category at 95.8% and this effectivesness test uses multivariate Hotteling’s Trace test adn comparison of effectiveness test using univariate statistical test between groups and the result show that the teaching materials of scientific-based worksheets are more effective than teaching materials for general textbooks.

2020 ◽  
Vol 8 (11) ◽  
pp. 832-835
Author(s):  
Khoironi Fanana A ◽  
◽  
Joko Waluyo ◽  
Supeno a ◽  
◽  
...  

IPA learning media based on android is a tool to provide learning information about natural phenomena in the form of events and causes of environmental consequences contained in the android operating system. Android-based science learning media designed in the form of an application. This research development research with 4D model with stages of definition, design, development, and dissemination.Covid-19 pandemic period is difficult to do effective learning.This study aims to analyze the effectiveness of android-based and conventional learning media in measuring students critical thinking ability on environmental pollution materials.This research is a development research conducted in MTs Negeri 8 Banyuwangi. Based on the results of the research that has been implemented, the use of android-based science learning media in experimental classes and decimination classes is quite effective for students critical thinking skills.Whereas in control classes that use conventional means are not effective for students critical thinking skills.


2020 ◽  
Vol 4 (4) ◽  
pp. 748
Author(s):  
Elvitri Nofriza ◽  
Usman Rery ◽  
Asmadi M Noer

The development of technology today has a huge impact on education, especially in the learning process. Therefore, an educator must be able to adapt the learning process to technological developments. One way to apply technology development in learning systems is to use e-modules in the learning process. The purpose of this study is to use guided inquiry-based e-modules to see the magnitude of the increase in students' critical thinking skills in the material reaction rate after using guided inquiry-based e-modules. The research method used a quasy experiment with a pretest-postest design using two classes as the experimental class and the control class. The sample in this study were students of State Senior High School (SMAN) 1 Sebrida Indragiri Hulu class XI. The results obtained were an increase in students' critical thinking abilities from before the use of guided inquiry-based e-modules. After the use of e-module based guided inquiry. This increase is seen from the comparison between the experimental class and the control cash class. The experimental class using e-module has a higher critical thinking ability of students than the control class that does not use e-module in the learning process.


2020 ◽  
Vol 4 (1) ◽  
pp. 60-69
Author(s):  
Risdawaty Sinurat ◽  
Nevrita Nevrita ◽  
Nur Eka Kusuma Hindrasti

High school students should be able to think critically in responding to myths related to exclusive breastfeeding and family planning programs, because they are used to thinking scientifically. The purpose of this study was to determine the level of critical thinking skills of students on exclusive breastfeeding material and family planning programs in SMA Negeri I Bintan Timur. This quantitative descriptive study was conducted in the even semester of the 2018/2019 school year. The sample in this study amounted to 100 students who were determined using the Random Sampling technique. The data in this study are students' critical thinking skills. Researchers collected data using test instruments in the form of essay questions and interview rubrics. The instrument was developed based on aspects of  critical thinking, namely: (1) Basic clarification; (2) Bases for a decision; (3) Inference; (4) Advanced clarification; (5) Supposition and integration; (6) Abilities facilitate the other abilities. Furthermore, the data were analyzed using a statistical formula in the form of a percentage. Based on the results of the data analysis, it can be concluded that the critical thinking ability of the 11th grade students of Mathematics and Natural Sciences in East Negeri I Bintan is in the less category. Based on the aspect of critical thinking ability, the results obtained are aspects of basic clarification, bases for decisions, and inference in the good category, aspects of advanced clarification in the less category, while aspects of suppositionand integration and the abilities to facilitate other abilities in the middle category


2018 ◽  
Vol 1 (4) ◽  
pp. 673
Author(s):  
Nina Lestari ◽  
Riki Andriansyah ◽  
Dinar Nur Azizah ◽  
Sopian Lukman ◽  
Wahyu Hidayat

The ability to think critically is one of the highest levels of ability. Developing critical thinking skills in students is still considered important to be improved in schools so that students are able and accustomed to facing various problems around it. This study aims to analyze the critical thinking skills of junior high school students who are in excellent classes and regular classes. This research was conducted in Bandung Barat. In this study students are given a test in the form of questions with critical thinking skills, the problem is used to compare between the superior class and ordinary class. Assessment of the problem using several factors of critical ability include 1) students can not understand the problem correctly, 2) students rush in doing the problem, 3) the students cannot choose the problem-solving strategy correctly and 4) the students work on the problem systematically. Then the matter of critical thinking skills of mathematics is analyzed using quasi-experimental research method to analyze students' critical thinking ability that influence learning result. This study shows the differences in critical thinking ability of junior high school students who are in excellent class and ordinary class. This study shows that superior classes are better in mathematical critical thinking ability than a regular class. The results of this study can add knowledge about critical thinking mathematics junior high school students who are in the class and ordinary class and used to facilitate for educational practitioners in the development of critical mathematical thinking skills.


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.


2019 ◽  
Vol 10 (2) ◽  
pp. 166
Author(s):  
Hajarudin Al Fikri

This study aims at producing a literature module of children based on nationalism character to improve the critical thinking ability of fourth grade students MIN Boyolali, and measuring the effectiveness of the module use in classroom toward critical thinking ability of fourth grade students MIN Boyolali. Set within the research and development type, this study adapts 10 (ten) stages of development procedure as formulated by Borg and Gall (1983). The subjects of the research were students and teachers of grade IV MIN Boyolali. Data collection was conducted through interview and observation, product validation, teacher and student response questionnaire, and performance of pre-test and post-test—which was analyzed using independent sample t-test. Meanwhile, product effectiveness was tested through quasi experiment. The result of the research showed that the module was categorized as “fit” by material and language expert; while the media expert categorized it as "very fit". In the other hand, teacher and student responses to the use of learning module were categorized as "excellent". Further, the output of the independent sample t test showed that the p value (0.000) was less than the 0.05 significance level (p≤0.05), indicating that the module was effective to improve students' critical thinking skills.


Author(s):  
U H Thohari ◽  
Madlazim Madlazim ◽  
Y S Rahayu

This research is aimed to develop learning device of Guided Discovery model with PhET simulation to trill students critical thinking skill. This research uses 4D development model and tested on 15 students of class XII IPA with test design using one group pretest-posttest design. Learning tools developed include: (a) syllabus (b) RPP, (c) student books, (d) LKS, and (e) tests students' critical thinking skills. Research data obtained through validation method, observation, test, and questionnaire. The results are analyzed descriptively quantitative and qualitative. The students' critical thinking ability is analyzed by n-gain. The result of the research shows that (a) learning device developed categorized is very valid, (b) learning activity is done very well, (c) critical thinking ability of students have moderate improvement, and (d) students respond very positively to learning which has been implemented. Based on the results of the analysis and discussion, it was concluded that the learning device of Guided Discovery with PhET simulation model developed is feasible to be used for trained critical thinking skills of high school students.


2018 ◽  
Vol 5 (2) ◽  
pp. 9
Author(s):  
Lesy Luzyawati

<p>This study aims to analyse the critical thinking skills of high school students on five-senses material through the usage of inquiry pictorial riddle learning model. The type of the research used is descriptive quantitative with Pre-Experimental Design and type One-Shot Case Study. The results shows that the students' critical thinking ability were vary. Of 32 students, 50% of students can be classified into very good category, 26.5% into good category, and 23.5% students into medium category. The achievement on the five critical thinking indicators of all students were also different, in which the achievement of critical thinking indicator of giving the simplest explanation has the highest percentage of 90% (very good) compared to another indicators, building basic skill has 84% percentage (good), making conclusion 80% (good), and 60% (medium) in giving further information, in which the achievement of this indicator is the lowest compared to another indicator.  On indicator of setting strategy and tactics the percentage is 73 (good). Based on the statistical numbers above, the average thinking ability of all students in grade XI MIPA 6 SMA Negeri 1 Sindang Indramayu is 77% wich can be classified into good category.</p>


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