scholarly journals Increasing Mathematical Critical Thinking Skills Using Advocacy Learning with Mathematical Problem Solving

2021 ◽  
Vol 8 (1) ◽  
pp. 1-14
Author(s):  
I Ibrahim ◽  
Imam Sujadi ◽  
Samsul Maarif ◽  
Sri Adi Widodo
Keyword(s):  
Critical Thinking ◽  
Prior Knowledge ◽  
Junior High School ◽  
Mathematics Learning ◽  
Mathematical Problem ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Control Group Design ◽  
High Prior Knowledge

The ability to think critically is one of the abilities students must possess. Students’ critical thinking skills have not been encouraging. There is a need for learning that can improve this ability, one of which is advocacy learning. The study aims to increase students’ critical thinking skills with open-ended mathematical problems in advocacy mathematics learning. This study is a nonequivalent control group design with a pre-test post-test control group. Sampling using cluster random sampling, randomization was carried out in classes at Junior High School 4 Bandung by taking two classes. Data analysis used Mann-Whitney, one-way ANOVA, and Tukey. The results showed that students treated with an advocacy approach by giving open-ended questions had better mathematical critical thinking skills than those who received conventional learning. Also, students with high prior knowledge had better critical thinking skills compared to the other two groups. This research implies that the advocacy can be used as an alternative to learning mathematics for students with high prior knowledge.

scholarly journals Model Problem Based Learning, Guided Inquiry, dan Kemampuan Berpikir Kritis Matematis

2017 ◽  
Vol 2 (2) ◽  
pp. 120-130 ◽  
Author(s):  
Oktavia Filda Yanti ◽  
Rully Charitas Indra Prahmana
Keyword(s):  
Critical Thinking ◽  
Junior High School ◽  
Mathematics Learning ◽  
Problem Based Learning ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Guided Inquiry ◽  
Control Group Design ◽  
Quasi Experimental

This research aims to determine differences in mathematical critical thinking skills between students who obtain mathematics learning using Problem Based Learning (PBL) and Guided Inquiry model. The research method used quasi-experimental with matching-only posttest-only control group design which implemented in one of the Junior High School of Yogyakarta. The instrument used is a valid test instrument namely posttest with descriptive evaluation. The result of this research showed that there is a difference of mathematical critical thinking skills between students who obtain mathematics learning using PBL model and students who obtain mathematics learning using guided inquiry model. Furthermore, the average of mathematical critical thinking skills between a student who obtains mathematics learning using problem based learning model is higher than students who obtain mathematics learning using guided inquiry model.

scholarly journals THE EFFECT OF THE USE OF PROBLEM BASED LEARNING MODEL TO THE CRITICAL THINKING SKILL OF STUDENT IN SOCIAL STUDIES LEARNING (Quasi Experimental Research in VII grade of 1 Lembang Junior High School)

2018 ◽  
Vol 2 (2) ◽  
pp. 42
Author(s):  
Nining Karlina
Keyword(s):  
Critical Thinking ◽  
Junior High School ◽  
Problem Based Learning ◽  
Test Sample ◽  
Thinking Skills ◽  
Learning Model ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Control Group Design ◽  
Quasi Experimental

Abstract-this study aims to know, analyze and evaluate the differences of students’ critical thinking skills by using problem based learning model and conventional models. This study uses a quasi-experimental method with quantitative approach using Nonequivalent (Pretest-Posttest) Control-Group Design. The data collection technique used in this study is using the test. The data analysis technique is done by independent t-test sample. Moreover, this research shows the significant differences if seen from the average of percentage of  experiment class; pretest is less while posttest is so gratified. The result of pretest control class is less and posttest is enough The results of this research give the recommendation for teachers and next researchers to apply problem based learning model to enhance critical thinking ability of students. In addition, problem based learning model is also expected to encourage students to be able to solve problems encountered in everyday life, especially in social studies.Keywords: Problem based learning, conventional learning model and critical thinking.

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 PEMBELAJARAN METACOGNITIVE SCAFFOLDING SEBAGAI UPAYA MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS MATEMATIS SISWA SMP DALAM MEMECAHKAN MASALAH

2021 ◽  
Vol 2 (2) ◽  
pp. 214-224
Author(s):  
Muhamad Zulfikar Mansyur ◽  
Depi Ardian Nugraha
Keyword(s):  
High School Students ◽  
Critical Thinking ◽  
Junior High School ◽  
Junior High ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Control Group ◽  
School Students ◽  
Control Group Design ◽  
Direct Learning

Critical thinking ability is an important ability to have. However, students' mathematical critical thinking skills are still low. Efforts that can be applied are through the Metagontive Scaffolding learning approach. The Metcagontive Scaffolding approach has been proven to be able to improve mathematical communication skills, mathematical literacy, and self-efficacy. This study was conducted to test whether Metagontive Scaffolding can improve the mathematical critical thinking skills of junior high school students better than direct learning. This study uses a quasi-experimental method with a nonequivalent control group design. The population in this study were all eighth grade students in one of the public junior high schools in Bandung. This study uses two classes as a sample from a number of class VIII randomly graded. The data in this study were obtained through the results of the answers to students' mathematical critical thinking abilities. significantly compared to students who participated in direct learning

PERBEDAAN PENINGKATAN KETERAMPILAN BERPIKIR KRITIS SISWA PADA MATERI TERMOKIMIA MELALUI PEMBELAJARAN GROUP DAN INDIVIDUAL PROBLEM SOLVING

2017 ◽  
Vol 9 (2) ◽  
pp. 99
Author(s):  
St Fatimah Azzahra
Keyword(s):  
Critical Thinking ◽  
Problem Solving ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Learning Problem ◽  
Group Problem ◽  
Control Group Design ◽  
Group Design ◽  
Group Problem Solving

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

CONCEPT-BASED LEARNING DAN KEMAMPUAN BERFIKIR KRITIS MATEMATIS

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Maifalinda Fatra ◽  
A Rizki ◽  
Tita Khalis Maryati
Keyword(s):  
Critical Thinking ◽  
Mathematics Learning ◽  
Sampling Technique ◽  
Thinking Skills ◽  
Learning Model ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Simple Explanation ◽  
Critical Thinking Ability ◽  
Thinking Ability

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.

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 Kemampuan Berpikir Kritis dan Metakognisi Siswa dalam Menyelesaikan Masalah Matematika melalui Pendekatan Problem Solving

2017 ◽  
Vol 6 (2) ◽  
pp. 234 ◽  
Author(s):  
Muhammad Ikhsan ◽  
Said Munzir ◽  
Lia Fitria
Keyword(s):  
Critical Thinking ◽  
Problem Solving ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Control Group ◽  
Control Group Design ◽  
Critical Thinking Ability ◽  
Group Design ◽  
Thinking Ability ◽  
Better Than

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.

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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