scholarly journals Development of Chemistry Tests for Students’ on Reaction Rate Subject Matter Based on Critical Thinking Skills using Framework DOT Test

2021 ◽  
Vol 5 (4) ◽  
pp. 702
Author(s):  
Rahmawati Nurfatihah ◽  
Nahadi Nahadi ◽  
Harry Firman
Keyword(s):  
High School Students ◽  
Critical Thinking ◽  
Subject Matter ◽  
Reaction Rate ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
School Students ◽  
Validity Test ◽  
Test Framework ◽  
Development And Validation

This study aims to develop a valid and reliable test to measure the critical thinking skills of the high school students of class XI on reaction rate subject matter using the Danczak – Overton – Thompson test framework (DOT test). The research method used in this research is development and validation. In this article, there are three stages of test development, namely the analysis of KI and KD in Chemistry of 2013 curriculum, analysis of the DOT test framework, and the preparation of the test predictions. The development stages produce a draft instrument that is ready to be validated. The developed instrument consists of 30 test questions. The validation stage includes the content validity test by 5 expert judgments. In the validity test, the calculated CVI value is 0.97 so that the instrument is valid. Based on the analysis of research data, it is concluded that the chemistry test based on critical thinking skills that was developed had a good validity value to measure students' critical thinking skills on the reaction rate subject matter.

scholarly journals The Effectivenes of Local Wisdom-Based Science Teaching Materials in Improving High School Students Critical Thinking Skills

Mangifera Edu ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 141-149
Author(s):  
Krisianti Ayu Monita ◽  
Erlia Narulita ◽  
Aris Singgih Budiarso
Keyword(s):  
High School ◽  
High School Students ◽  
Critical Thinking ◽  
Science Teaching ◽  
Thinking Skills ◽  
T Test ◽  
Critical Thinking Skills ◽  
Teaching Materials ◽  
School Students ◽  
Gain Score

In 21st century learning, critical thinking skills are the main choice that must be mastered by students. This study aims to determine the effectiveness of local wisdom-based science teaching materials in improving junior high school students’ critical thinking skills. Most science teachers still apply teacher-centered learning, so students tend to be passive. This type of research is quasi-experimental with a pretest-posttest control group design. The study was conducted in the even semester of the 2019/2020 school year. The subjects of the research were grade VII students. Data collection techniques and instruments in the form of tests that include indicators of critical thinking skills. Data analysis used homogeneity test, Kolmogorov Smirnov normality test, independent sample t-test, and n-gain score. The results of the independent sample t-test are sig. (2-tailed) = 0,000<sig. α = 0.05. Students’ critical thinking skills in the experimental class were higher (N-gain score = 39.09%) than in the control class (N-gain score = 12.03%). Based on the study results, it can be concluded that there is a significant influence on the application of local wisdom-based teaching materials in improving the critical thinking skills of middle school students in the moderate category.

scholarly journals Exploring Mathematical Critical Thinking Skills of Yogyakarta Junior Secondary School Students

2018 ◽  
Vol 8 (1) ◽  
pp. 29-38
Author(s):  
Elsa Susanti ◽  
Endah Retnowati
Keyword(s):  
High School Students ◽  
Critical Thinking ◽  
Mathematics Learning ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Research Subjects ◽  
School Students ◽  
Evaluation Standard ◽  
Junior Secondary Schools ◽  
Junior Secondary

This article explores the skills and difficulties in critical thinking of junior Indonesian high school students in mathematics learning. Fifty students of grade IX who were purposive randomly selected from state junior secondary schools in Yogyakarta City were involved as the research subjects. The data were obtained from the test of mathematical critical thinking on the material of geometry. The test consisted of four items that describe each aspect of critical thinking skills, namely interpretation, analysis, evaluation, and inference. The analysis was done by showing the steps of the students ‘answers. The result indicated that the average of the aspects of mathematical critical thinking of students were on the high criteria with students’ greatest difficulties being in the analysis standard. Meanwhile,the average student success in the interpretation standard was 82%, the standard of the analysis was 46.25%, the evaluation standard was 78.25%, and the inference standard was 77%. Furthermore, from the results of the sample students’ exploration answers, it is expected that future teaching should not only focus on fluency in calculation but also on training the students in how to explain the solution steps of the problem solving process as this is important part in critical thinking.

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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