scholarly journals Implementation of Talking Stick Method on Acid-Base Concepts to Improve Students' Critical Thinking Skills

2021 ◽  
Vol 1 (1) ◽  
pp. 53-59
St Fatimah Azzahra ◽  
Nova Irawati Simatupang

This study aimed to improve the critical thinking skills of class XI high school on acid base material in the 2018/2019 using the talking stick method. This research is a classroom action research conducted in two cycles. Each cycle consists of planning, implementation, observation and reflection so that this study describes planning, activities and improving critical thinking skills of high school of class XI. The subjects of this research is all students of grade XI in one of the South Tangerang high schools in Indonesia which consisted of 33 students. Data collection techniques in this study were using essay tests, observation sheets, teacher activities, student activities, field notes and interviews. The results of this study indicate that students’ critical thinking skills increase using the talking stick method seen from the student ability to answer questions, express opinions, respond to friend opinions and consider sources. Critical thinking skills has increased, in the first cycle that is equal to 21.20% while in the second cycle is 90.90%. It can be concluded that the use of the talking stick method can improve the critical thinking skills of class IX high school in acid base material.

2021 ◽  
Vol 5 (2) ◽  
pp. 61-69
Reny Yulfiani ◽  
Muchlis Muchlis

Abstract. This research to describe implementation of Problem Based Learning models, activities students, and critical thinking skills (CTS) in learning using PBL models on acid-base material. The design used is One Group Pretest Posttest Design with 32 subjects.  This study resulted is: (1) implementation of learning using PBL model  get the results of the average value sequentially at meetings one and two of 3.60 and 3.76, with very good criteria (2) Students perform relevant activities  meaning of students have practiced CTS. The relevant activities of students in sequence at meetings one and two of 98.75% and 97.7%. (3) CTS learners experienced an increase, overall the pretest and posttest scores of students received a percentage of 90.63% students in high category and 9.38% in medium category. The percentage of component of interpretation, inference, and analysis in high category are as follows 78.13%; 81.25%; 90.63%, and the medium category 21.88%; 18.75%; 9.28%.

2019 ◽  
Vol 3 (2) ◽  
pp. 142
Fauzana Gazali ◽  
Nalia Rahyusri Ningsih

Teaching materials used by teachers in acid-base material have not been able to develop students' critical thinking skills. One solution that can be done to develop students' critical thinking skills is using acid-base module’s based on REACT (Relating, Experiencing, Applying, Cooperating, and Transferring). The aim of this research is to produce an acid base module based on REACT and reveal its validity and practicality. The type of research used is Research and Development (R&D) using the 4-D model. The module design has been assessed by seven validators who are Subject Matter Experts (SMEs) consisting of chemistry lecturers from FMIPA UNP and chemistry teachers. While the practicality test was conducted by 3 chemistry teachers and 26 students of class XI MIPA SMAN 1 Padang Panjang. Data analysis techniques in this study used the Content Validity Ratio (CVR) and Cohen's kappa formula. The module design produces three main characteristics, namely: the module is designed in accordance with the prior knowledge of students; the module contains the REACT syntax component; and the module contains aspects of critical thinking skills developed by Ennis. The results of the content validity obtained value of the Content Validity Index (CVI) of 0.90 with a valid category and the results of the construct validity obtained kappa moment of 0.92 with a very high validity category. While the module practicality results according to the teacher and students obtained a kappa moment of 0.86 with a very high practicality category. The conclusion from this study is that the module developed is valid and practical.

2019 ◽  
Vol 5 (1) ◽  
pp. 9-20
Adam Malik ◽  
Yeni Novita ◽  
Ade Yeti Nuryantini

This study aims to determine the implementation of the learning problem-solving laboratory model and improvement of critical thinking skills of students on temperature and heat topic. The method used in this research was pre-experiment, with one-group pretest-posttest design. The population of this study was class X SMA Muhammadiyah 1 Garut. The sample was selected by random sampling technique, with a sample of one class X-2, amounting to 30 people. The implementation of problem-solving laboratory model learning was observed by observers with observation sheets and improvement of students' critical thinking skills measured by essay tests. The results showed that the average implementation of problem-solving laboratory model learning for teacher activities was 84% and student activities at 80% were both categorized well. There was an increase in the critical thinking skills of students shown by the average of the normalized gain value of 0.64 include the medium category. Thus, the problem-solving laboratory model learning can be used as an alternative in improving students' critical thinking skills on the topic of temperature and heat.

2020 ◽  
Vol 5 (4) ◽  
pp. 554
Laili Nur Azizah ◽  
Munzil Munzil ◽  
Fauziatul Fajaroh

<pre><strong>Abstract:</strong> The purpose of this study was to find out effect of learning on critical thinking skills and conceptual understanding of acid-base material. The learning model used was the Level of Inquiry. The quantitative research design using the Quasy experiment method based on the post tett only non equivalent group design was applied in the study. The results do not have a significant effect on critical thinking skills, but the use of animation media in general affects the understanding of concepts. The biggest influence is on the class with the help of dynamic media. </pre><strong>Abstrak:</strong><em> </em>Tujuan peneltian yang dilakukan adalah untuk mengetahui pengaruh pembelajaran terhadap kemampuan berpikir ktritis dan pemahaman konsep pada materi asam basa. Model pembelajaran yang digunakan adalah <em>Level of Inquiry</em>. Rancangan penelitian kuantitatif yang menggunakan metode <em>Quasy experiment</em> berdasarkan rancangan <em>post tet only non equivalent group design </em>diterapkan dalam penelitian<em>. </em>Hasilnya tidak memberikan pengaruh yang signifikan terhadap kemampuan berpikir kritis, tetapi penggunaan media animasi secara umum berpengaruh terhadap pemahaman konsep. Pengaruh terbesar terdapat pada kelas dengan bantuan media dinamis.

2021 ◽  
Vol 5 (2) ◽  
pp. 1978-1991
Ayu Faradillah ◽  
Tia Humaira

The purpose of this study was to analyze students' mathematical critical thinking in terms of mathematical resilience and domicile. The method used in this research is descriptive qualitative where the process of selecting the subject uses an application called Winstep. Researchers used 473 high school students from 6 different schools to be the subjects in this study. The technique of taking the subject from research is based on the students' mathematical resilience level so there are 3 categories, namely high mathematical resilience, moderate mathematical resilience and high mathematical resilience. Data collection techniques using questionnaires, tests and interviews. Students are given a questionnaire in advance to determine the subject who will take the next test, namely mathematical critical thinking questions, after which the student's answers are analyzed and the researcher conducts interviews to find out how students solve the problems given and how many indicators the students can solve obtained in this study are students with high mathematical resilience obtain low critical thinking skills, students with moderate mathematical resilience acquire high critical thinking skills and students who have low mathematical resilience obtain moderate critical thinking skills.

2018 ◽  
Vol 4 (2) ◽  
pp. 55-64
Adam Malik ◽  
Vitriani Vitriani ◽  
Muhammad Minan Chusni

This study aims to determine the implementation of cooperative learning models using type Student Facilitator and Explaining (SFAE) and the improvement of students' critical-thinking skills in momentum and impulses topic. We use pre-experiment design, with the one-group pretest-posttest. The population of this study was class X MIA YAS Bandung with the sample of class X MIA 2 amounted to 30 students selected by random technique. We use the observation sheet as the instrument to observe the implementation of teacher and student activities during the cooperative learning model type SFAE. The essay tests are used to measure the improvement of students' critical-thinking skills. The results of the study showed that the implementation of teacher activities was 81% and student activities by 77% in the good category. Increasing students' critical-thinking skills is the medium category with an average normalized gain value of 0.63. Based on the results of hypothesis testing using the paired sample t-test, it was obtained t-count (34.08) > t-table (2.052) which means that Ho was rejected and Ha was accepted. It was concluded that there was an increase in students' critical-thinking skills after applying the SFAE type cooperative learning model to the material of momentum and impulse. Thus, this learning model of type SFAE can be used to improve students' higher-order thinking skills.

Ratu Betta Rudibyani

<p class="Abstract">The Effectiveness of Discovery learning to Improve  Critical Thinking Skills college student on Mastery of Arrhenius Acid-Base. This research was aimed to describe the effectiveness of discovery learning to improving critical thinking skills on mastery of Arrhenius acid-base. The renewal of this research is the integration of discovery learning models, The 2013 curriculum structure, Arrhenius acid-base material with aspects of critical thinking skills according by Ennis.This research used quasi-experiment with pretest-postest non-equivalent control group design. The population in this research is all college students of Master Program of Chemistry Education, Faculty of Teacher Training and Education, Lampung University  Academic year 2017/2018. The sample is taken by cluster random sampling technique and obtained sample that is class A as experiment class were 31 students  and Class B as control class was 30 students. The results showed that the effectiveness of discovery learning by n-Gain value had high criteria and effect size had large criteria. Based on the result of this research shown that discovery learning effective and have a high effect size in improving  critical  thinking skills  on mastery of Arrhenius acid base.</p>

2020 ◽  
Vol 8 (3) ◽  
pp. 737-744
Miterianifa ◽  
Ashadi ◽  
Sulistyo Saputro ◽  

Purpose of the study: This current study aims to analyze students’ critical thinking skills in learning chemistry specifically colloidal concept. Methodology: The research method used in this research is mixed-method by using explanatory sequential design. Data collection techniques used interviews, observation, and essay tests that have been developed based on critical thinking indicators by Ennis. This research is based on tests and interviews of students of class XI IPA in Pekanbaru. Quantitative data analysis techniques used a pre-experimental research design with one group pretest-posttest design and qualitative data analysis techniques used interviews and observation. Main Findings: Through essay tests, the average pre-test score was 30.15 and the post-test score was 50.67. The results provide information about high school students 'critical thinking skills about the concept of colloids which are still low so that alternative learning strategies are needed to improve students' critical thinking skills in chemistry learning. Applications of this study: The results of the research, expected to provide an overview for teachers and researchers about the condition of critical thinking skills of high school students in chemistry learning, specifically the concept of colloids. Novelty/Originality of this study: In this research, the novelty is the development of five indicators of critical thinking skills, the results of qualitative and quantitative analysis of students' critical thinking skills on colloidal concepts.

2019 ◽  
Vol 3 (4) ◽  
pp. 772
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.

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