Critical thinking plays a crucial role in the learning process. Critical thinking should become the focus of learning since it encourages the development of knowledge and includes the act of contemplating subjects, content, and problems. The current study aimed to investigate the effectiveness of Problem-Based Learning (PBL) and Digital Mind…

Critical thinking skills are among the main skills in the 21st Century. However, many schools in Indonesia have not trained their students' critical thinking skills optimally. The purpose of this study was to identify the quality of high-school students' critical thinking skills. A survey was conducted to 175 tenth graders who were registered in…

The current study aimed to investigate the effectiveness of RANDAI learning model that was produced from the integration of Minangkabau culture and Problem Based Learning (PBL), in enhancing pre-service biology teachers' critical thinking skills. This experimental study used a nonequivalent pretest-posttest control group design and involved 107…

The instructional models that have been implemented in the classroom could not support the development of students' critical thinking skills. These instructional models can be well implemented if those models can facilitate students with meaningful learning experiences such as reading, connecting prior knowledge to new information being learned in…

Research on active learning that emphasises question formulation activities has received less attention. This study was conducted to address the said gap identified in the literature by testing the thinking empowerment by questioning (TEQ) strategy on the level of conceptual understanding (CK) and critical thinking (CT) of students in Biology…

Questions serve as an element that can be used to access and stimulate students' thinking ability. This research aimed at analyzing the students' ability to pose Higher-Order Thinking Skills (HOTS) questions during the learning process. This research was a survey research using a descriptive quantitative approach. The samples used in the research…

The empowerment of metacognitive skills has an important role in increasing the capacity of critical thinking and active control of students' cognitive processes in learning. Metacognitive skills can be enhanced through the implementation of learning strategies involving higher-order thinking. The RQA, ADI, RQA integrated with ADI are…

This quasi-experimental research aimed at investigating the effect of ProblemOriented Project-Based Learning (POPBL), Student Team Achievement Division (STAD), POPBLSTAD integration, and conventional learning on students' critical and creative thinking skills. Essay tests conducted to 129 students. The results of the test assessed using a relevant…

The present study was an attempt to investigate the effect of Problem-Based Learning (PBL), Predict, Observe, Explain (POE), and the combination of both (PBLPOE) on students' critical thinking skills and scientific attitudes in Biology. A pretest-posttest nonequivalent control group design was employed in this study and 132 tenth-grade students…

This study aimed to investigate the differences between: 1) low-ability students' critical thinking skills and high-ability students' critical thinking skills, 2) male students' critical thinking skills and female students' critical thinking skills. This research was a survey conducted in some public Senior High Schools (SMAs) in Batu, East Java,…

The purpose of this study was to investigate the effect of RICOSRE learning models towards critical thinking skills of students with different academic abilities. This quasi-experimental study employed a pretest-posttest nonequivalent control group design and involved all the eleventh-grade students from high schools in Malang, Indonesia. The…

The aim of this research was to reveal the relationship between student's reading interest and critical thinking skills through Reading Concept Map Group Investigation (Remap GI) and Reading Concept Map Jigsaw (Remap Jigsaw) learning models. To do so, two science classes from first grade of two Senior High Schools in Malang, Indonesia were…

Some research findings showed that Indonesian students' critical thinking skills below average, especially those who have a low academic ability; even though that skills are needed to face this 21st century. There should be a strategy to train students to develop their critical thinking, one of them is by implementing an appropriate learning…

Students' critical thinking skills are very important in the 21st century. Learning strategies can play a role in enhancing students' critical thinking skills in the Nutrition and Health lecture. The results of a survey in 2013 showed that the implementation of learning strategies had not given students the opportunity to practice their critical…

The aims of this study were (1) to find out the differences in critical thinking skills among students who were given three different learning models: differentiated science inquiry combined with mind map, differentiated science inquiry model, and conventional model, (2) to find out the differences of critical thinking skills among male and female…