The purpose of this study was to explore the effect of Content Representations (CoRes) construction, and reflective peer discussions on pre-service physics teachers' pedagogical content knowledge (PCK). Participants consisted of 16 third year pre-service physics teachers; 12 females and 4 males. The results show that the majority of participants…

Insects are extremely important for maintaining the natural environment, performing such essential ecosystem services as decomposition, dung burial, and soil aeration, as well as providing food for other wildlife. Insects are also important for human interests such as crop pollination. Though the advantages of using insects as teaching tools are…

There is a contradiction in the literature about the effect of REACT strategy on science achievement. This study aims to resolve this contradiction by determining the effect of REACT strategy on student science achievement and the factors affecting this strategy by integrating findings obtained from both qualitative and quantitative studies. The…

The purpose of this study was to investigate the effect of the case-based learning (CBL) method used in "biochemical oxygen demand (BOD)," which is a topic taught in the environmental chemistry course, at Dokuz Eylul University, on the academic achievement and opinions of students. The research had a quasi-experimental design and the…

Team based learning (TBL) is a time tested teaching-learning (T-L) tool involving collaborative learning but has hardly been tested for teaching clinical biochemistry to undergraduate medical students. The present study was designed to (a) compare problem solving skills of first year MBBS students after attending a TBL session on 'organ function…

Studies on the effectiveness of clickers in undergraduate chemistry courses are mixed, and there is disagreement on how to effectively leverage clickers to improve student learning performance. To fill a gap in the research, we analyzed three different teaching strategies (two involving clickers) in a General Chemistry I course over a 13-year time…

Meaningfully engaging students in the NGSS scientific practices requires that student ideas become the driving force of classroom activity. However, in order for student ideas to take on this new role, teachers must engage in responsive teaching in which they elicit, notice, and respond to the substance of student thinking. In this work, we…

Along with the fast development in the internet technologies, every day new learning and teaching approaches are introduced and implemented. In this context, the aim of this research is to reveal the effect of Flipped Classroom model on the academic success of the students for the subject of Interaction of Matter with Heat of 8th grade Science…

Minimizing the energy consumption of desalination processes is an important goal for augmenting freshwater production and mitigating water scarcity. Chemical, civil, mechanical, and environmental engineering students can derive and analyze the energy consumption of desalination processes by applying engineering fundamentals such as thermodynamics,…

In many high school teaching materials the force on a current-carrying wire in a magnetic field is discussed using an idea based on a so-called "catapult field" (cf. Fig. 1), an engaging depiction of magnetic forces, albeit one which, to the best of our knowledge, has neither been used in college-level educational material or scrutinized…

In this study, the tilt of the Earth's axis was measured during a lunar eclipse using a telescope based on the angle between the lunar orbit and ecliptic planes being considered as approximately zero. The presented method not only offers a practical and reliable way of measuring the axial tilt of the Earth during a lunar eclipse but also helps in…

While a mutually agreed-upon definition of STEM education remains elusive, there is no doubt that instructional models and ideas put forward with the STEM label have had a tremendous impact on thinking, debate, and practice in schools worldwide. At issue is the degree to which some or all the STEM disciplines must be taught in a concurrent or…

This article describes a simple and inexpensive "shock and awe" classroom demonstration for understanding the importance of carbon dioxide (CO[subscript 2]) in acid-base regulation. Before class, a solution was prepared by adding sodium bicarbonate and universal indicator solution to a sample of distilled water contained in a standard…

Carbohydrates, or in strictly chemical terms, polyhydroxy-aldehydes or ketones represent enormous structural diversity in terms of the arrangement of atoms in space, resulting in hundreds of stereoisomers. Although the chemical properties of most stereoisomers may not be very different, their metabolic fate and utilization in biological systems is…

When we travel in a train moving at a certain velocity, we observe the stationary objects outside are moving backwards. These stationary objects seem to move due to a relative velocity. Consider that the stationary object outside the train is a man standing on the stationary floor watching a woman moving on a train. The woman on a train will see…