scholarly journals The Effects of Using Concept Cartoons in Astronomy Subjects on Critical Thinking Skills among Seventh Grade Student

2017 ◽  
Vol 10 (2) ◽  
pp. 243-254 ◽  
Author(s):  
Filiz Demirci
2019 ◽  
Vol 6 (2) ◽  
pp. 233-243
Author(s):  
Isnaini Nur Azizah ◽  
Djamilah Bondan Widjajanti

Tujuan penelitian ini untuk mendeskripsikan keefektifan pembelajaran berbasis proyek pada materi statistika ditinjau dari prestasi belajar, kemampuan berpikir kritis, dan kepercayaan diri siswa SMP kelas VII. Pembelajaran berbasis proyek terdiri dari enam langkah yaitu: (1) penentuan proyek; (2) perancangan langkah-langkah penyelesaian proyek; (3) penyusunan jadwal pelaksanaan proyek; (4) penyelesaian proyek dengan fasilitasi dan monitoring guru; (5) penyusunan laporan dan presentasi/publikasi hasil proyek; dan (6) evaluasi dan hasil proyek. Populasi dalam penelitian ini adalah siswa kelas VII SMPN 1 Yogyakarta. Instrumen yang digunakan adalah tes prestasi belajar, tes kemampuan berpikir kritis, angket kepercayaan diri, dan lembar observasi keterlaksanaan pembelajaran. Uji hipotesis menggunakan uji proporsi Z pada taraf signifikan 95% (α = 5%). Berdasarkan hasil uji hipotesis diperoleh proporsi siswa yang prestasi belajarnya telah mencapai KKM lebih dari 75%. Proporsi siswa yang memiliki kemampuan berpikir kritis dan kepercayaan diri pada kategori minimal “baik” lebih dari 75%. Dengan demikian dapat disimpulkan bahwa pembelajaran berbasis proyek efektif ditinjau dari prestasi belajar, kemampuan berpikir kritis, dan kepercayaan diri siswa. The effectiveness of project-based learning viewed from students’ learning achievement, critical thinking skill, and self-confidenceAbstractThe purpose of this study was to describe the effectiveness of project-based learning in statistical material viewed from learning achievement, critical thinking skills, and self-confidence of seventh-grade junior high school students. Project-based learning consists of six steps: (1) determining the project; (2) designing project completion steps; (3) preparing the project implementation schedule; (4) completion of the project with facilitation and monitoring from the teacher; (5) preparation of reports and presentation/ publication of project results; and (6) evaluation and results of the project. The population in this study was seventh-grade students of SMP 1 Yogyakarta, Indonesia. The instruments used were a learning achievement test, a critical thinking ability test, a self-confidence questionnaire, and an observation sheet of learning accomplishments. Hypothesis testing uses the proportion Z test at a significant level of 95% (α = 5%). Based on the results of the hypothesis test, the proportion of students who have learning achievement reached KKM was more than 75%. The proportion of students who have critical thinking skills and self-confidence in the minimum category of "good" was more than 75%. Thus it could be concluded that project-based learning was an effective view from students’ learning achievement, critical thinking skills, and self-confidence.


2020 ◽  
Author(s):  
Paul Crips ◽  
William Parker ◽  
Steven Barrett ◽  
Jerry Hamann

2017 ◽  
Vol 9 (2) ◽  
pp. 99
Author(s):  
St Fatimah Azzahra

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


2019 ◽  
Vol 3 (4) ◽  
pp. 772
Author(s):  
Leni Suryani

This research is motivated by the competence of teachers in preparing poor learning outcomes tests and has not been able to measure high-level thinking skills, especially critical thinking skills. Therefore the researcher seeks to improve teacher competence in compiling tests on student learning outcomes based on critical thinking skills through academic supervision. This study uses a school action research design that has stages of planning, implementation, observation, and reflection. This research was conducted for 2 months starting April 9 to May 17, 2019 for Physics teachers in the 7 target schools. Data is sourced from interviews with teachers and test documents prepared by the teacher. Data collection techniques include observation, interviews and documentation. Data analysis through the stages of data collection, data simplification, data presentation, conclusion drawing. Data were analyzed using assessment rubrics adjusted to indicators of critical thinking skills. The results of this study conclude that teacher competence in preparing tests of learning outcomes based on critical thinking skills has increased from the first cycle with a percentage of 61% with sufficient categories to 76% with good categories in cycle II.


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.


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