Children are natural engineers. Engineering design activities for preschoolers introduce practices and encourage scientific habits of mind. The "Next Generation Science Standards" (NGSS Lead States 2013) highlight that crosscutting concepts and disciplinary core ideas can not be mastered without engaging in scientific investigations and…

Problem-based learning (PBL) fosters both content knowledge and content understanding, improves critical and process thinking skills, and promotes peer-to-peer learning, leadership, and teamwork (Hmelo-Silver 2004). Instructors support the PBL process by guiding students through activities that challenge their current knowledge and understanding…

This study compared the effects of Individualised Instructional Strategy (IIS) and Cooperative Learning Instructional Strategy (CLIS) on male and female senior secondary school students' academic achievement in Organic Chemistry. The study was guided by 2 research questions and 3 null hypotheses. The design was quasi-experimental. The population…

Stem cells are cells that can self-renew and differentiate into a variety of cell types under certain conditions. Stem cells have great potential in regenerative medicine and cell therapy for the treatment of certain diseases. To deliver knowledge about this frontier in science and technology to medical undergraduate students, we designed an…

Science students need exposure to activities that will help them to become familiar with phenomena exhibiting exponential decay. This paper describes an experiment that allows students to determine the rate of thermal energy loss by a hot object to its surroundings. It requires limited equipment, is safe, and gives reasonable results. Students…

Acquiring conceptual understanding seems to be one of the main challenges students face when studying organic chemistry. Traditionally, organic chemistry presents an extensive variety of chemical transformations, which often lead students to recall an organic transformation rather than apply conceptual knowledge. Strong surface level focus and…

Research has indicated the importance of representational competence for learning science. Issues related to the nature of students' representational competence, such as how they demonstrate representational competence across different domains of science, require investigation. In the present study, four aspects of representational competence…

There is a concern that materialistic thinking--meaning the tendency to attribute a set of matter-like properties to nonmatter concepts--is one of the central barriers that students face in the journey toward understanding scientific concepts. The cross-sectional study presented here used the Sound Concept Inventory Instrument (SCII) (Eshach,…

Research in organic chemistry education has revealed that students often rely on rote memorization when learning mechanisms. Not much is known about student productive resources for causal reasoning. To investigate incipient stages of student causal reasoning about single mechanistic steps of organic reactions, we developed a theoretical framework…

Previous studies have identified physics students' difficulties with graph slope and area under a graph in different contexts. In this study we compared physics and nonphysics (psychology) students' understanding of graphs; i.e., we evaluated the effects of concept (graph slope vs area under graph), type of question (qualitative vs quantitative),…

Purpose: Teachers have an important role to help their students acquire and improve their life skills. Therefore, it is essential to ask what science teachers think about the concept of life skills and how they perceive this concept. The aim of this study was to examine how science teachers perceive life skills and what they think about life…

Although engineering design is dependent upon the use of science and mathematics, the actual prototype, model, or solution that pre-college students generate can be accomplished without the students explicitly using scientific or mathematical concepts. It is therefore important to explore how students apply science and mathematics concepts when…

Modern global society is complex and interconnected with infinite limitations and increasing competition for resources. Increasingly, people are aware of the impact of modern lifestyle choices on the sustainability of the planet. Sustainability is a growing focus of many world leaders, politicians, and educators. Many societal leaders agree that…

Pre-service primary teachers mostly have negative attitudes towards science teaching and learning, and their science background is usually low. This usually results in them feeling unable or unconfident to teach science at school. A previous step to improve their willingness to teach science to children is that they feel they can learn in-depth…

In this research word association test was used to explore the cognitive structure of Pre-service science teachers about biological energy metabolism. The participant group constitutes 67 Preservice students at a university in Black Sea Region of Turkey. Ten key concepts in General Biology course were given as a stimulating word and a mind map was…