scholarly journals Development of problem-based learning module on electrolyte and nonelectrolyte solution to improve critical thinking ability

2019 ◽  
Vol 1185 ◽  
pp. 012146
Author(s):  
D A Sari ◽  
E Ellizar ◽  
M Azhar
2018 ◽  
Vol 2 (2) ◽  
pp. 124-132
Author(s):  
Mesia Dewi Hasanah ◽  
Heffi Alberida ◽  
Yosi Laila Rahmi

Implementation of Curriculum 2013 requires students to learn actively, independently, and critical thinking. Critical thinking is an activity through thinking about ideas related to concepts or problems. The efforts to improve critical thinking skills of learners can be done by using the appropriate learning model. One of the learning models that can be used to improve the ability of critical thinking is a problem-based learning model. This type of research is quasi experiment with randomized control-group pretest posttest design. The sample of this research choosed by used purposive sampling method. Class VIII6 as experimental class and class VIII4 as control class. Data of this research result are quantitative data of critical thinking ability. Data were analyzed by using t test. The results showed that the mean difference of posttest value with pretest value of critical thinking ability of experimental class learners is higher than control class. Hypothesis testing with t-test obtained tcalculate=2,94>ttable= 1,67, then H1 accepted. Based on these results the authors conclude that the implementation of problem-based learning model has a positive effect on the ability to think critically learners on the material additives and addictive substances.


2015 ◽  
Vol 6 (2) ◽  
pp. 107-116 ◽  
Author(s):  
Reviandari Widyatiningtyas ◽  
Yaya S. Kusumah ◽  
Utari Sumarmo ◽  
Jozua Sabandar

The study was report the findings of an only post-test control group research design and aims to analyze the influence of problem-based learning approach, school level, and students' prior mathematical ability to student's mathematics critical thinking ability. The research subjects were 140 grade ten senior high school students coming from excellent and moderate school level. The research instruments a set of mathematical critical thinking ability test, and the data were analyzed by using two ways ANOVA and t-test. The research found that the problem-based learning approach has significant impact to the ability of students' mathematics critical thinking in terms of school level and students' prior mathematical abilities. Furthermore. This research also found that there is no interaction between learning approach and school level, and learning approach and students' prior mathematics ability to students' mathematics critical thinking ability.Keywords: problem-based learning, mathematical critical thinking ability


2021 ◽  
Vol 12 (1) ◽  
pp. 23
Author(s):  
Nia Alfitriyani ◽  
Indarini Dwi Pursitasari ◽  
Surti Kurniasih

This research aims to develop a science learning module based on Socio Scientific Issues on biotechnology materials that can improve students' critical thinking skills. This research is an R&D research with a 4-D design. Validation is carried out by science experts and teachers. The module readability test and the students' responses to the module were obtained using a close test and questionnaire. Data analysis was performed descriptively quantitatively. The results of the module validation by expert lecturers obtained 89% and an average CVI value of 0.98 with a very valid category and was suitable for use. The module readability test results were 42.22% with the instructional level category indicating that the modules needed to be learned. The results of the N-Gain test for critical thinking ability is 0.59, the module is in the moderate category and the students' response value to the module by 87.50% showed the response in the very good category to the use of module-based SSI in learning to improve critical thinking skill.


2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Rini Susilowati

This type of research  is a class action research. The purpose of this research enhances students ' critical thinking ability by application of Problem Based Learning with  Audio Visual Media. Data were collected by using a sheet of observation and evaluation tests. The average percentage of critical thinking ability of students overall observation sheet on precyae 13.8% increase in cycle cycle I 69% and increased again in cycle II 96.5%. And the overall percentage on the test results the evaluation cycle I 44.8% increase in cycle II 96.6%. Thus the results showed that the application of problem based learning with audio visual media is able to enhance the critical thinking ability of students.


Author(s):  
Deviana Yulianti

<p><em>The demands of the 2013 curriculum ideally are that learning is able to develop 4C skills, one of which is critical thinking and problem-solving skills (Critical-Thinking and Problem-Solving Skills), namely being able to think critically, laterally, and systematically, especially in the context of problem solving. In fact, students' critical thinking skills have not been maximally developed, especially in elementary schools. The learning process in elementary schools currently requires problem-based learning that requires students to actively carry out investigations in solving problems and the teacher acting as a facilitator or learning guide will be able to shape the ability of students to think critically. The purpose of this research is to describe the concept of Problem Based Learning (PBL), the concept of critical thinking ability, and the relationship between Problem Based Learning (PBL) and critical thinking ability. The results of the Problem Based Learning (PBL) model improve critical thinking ability.</em></p>


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