Picture books are among the primary resources that could be referred to for introducing scientific concepts to young children. However, it is known that misrepresentations in picture books could lead to misconceptions in children and make it more difficult to acquire scientific concepts. This study investigates the misrepresentation of scientific…

Entropy is a concept with an extreme controversy which many scientists have been trying to explain. Some of the approaches employed in its definition contradict each other, which made it extremely difficult for high school and college students to understand. Boltzmann was the first person who brought a statistical explanation to entropy and…

Science and environmental educators implicitly presuppose that the ecosystem per se is clearly defined and consider learners' misunderstandings to be incorrect scientific interpretations of uncontested knowledge content. The present study, however, explores how in-service secondary education Greek biology teachers address the topic of 'ecosystem…

By means of their pivotal role in the outbreak of a variety of diseases, such as, recently, COVID-19, the molecular aspects of cell membrane function have gained considerable attention from researchers in recent decades. The resulting information explosion and the growing interdisciplinary character of cell biology seems, however, to not be…

Suzuki-Miyaura coupling reactions are well-known among the most versatile catalytic C-C bond formation reactions. Two different routes of C-C bond Suzuki-Miyaura coupling reactions for the undergraduate organic chemistry laboratory courses have been designed and explained. A two-step reaction involving a catalyst preparation as the first step and…

We report a research-enhanced undergraduate laboratory practical in which students synthesize and characterize color-controllable, stable silver nanoparticles for use in a simple catalytic reaction analyzed by UV-vis spectroscopy. The practical has been prepared for students using electronic laboratory notebooks, enables collaborative data…

Publicly available, learner-generated questions were used to develop a methodology for advancing the exploratory stages of science education research. Data from four complementary online sources were collected, analyzed, and compared to the extant research literature on the science education topic of isotopes, a challenging concept for many…

On November 16, 2018, at the 26th meeting of the General Conference on Weights and Measures (CGPM), a resolution was adopted that introduced historical changes into the International System of Units (SI). This decision, effective from May 20, 2019, established that the SI units of measurement will be defined by means of a set of seven fixed…

A bouncing rubber ball under a motion sensor is a classic of introductory physics labs. It is often used to measure the acceleration due to gravity, and can also demonstrate conservation of energy. By observing that the ball rises to a lower height upon each bounce, posing the question "What is the main source of energy loss?" and…

In this work, an adaptation is developed of the first observation attempted by Galileo to demonstrate the heliocentric hypothesis to be correct. The objective is to enable students in their final year of elementary school to confront by themselves the same contradictory evidence that Galileo confronted during the second decade of the 17th century.…

We previously proposed a hypothetical learning progression around the disciplinary core idea of the Solar System and its formation as a first step in a research program to begin to fill this gap and address questions of student learning in this domain. In this study, we evaluate the effectiveness of two dimensions within the learning progression,…

The material of a standard second-year undergraduate organic chemistry class has been reorganized and reframed to emphasize the mechanistic connections between reactions and to clarify the language with which organic reaction mechanisms are discussed. Assessment of the results of this reorganization shows that student test scores do not decline in…

Three-dimensional learning is the name given to the vision for science education described in the National Academies consensus report "A Framework for K-12 Science Education." Of the three dimensions described in the Framework, the Disciplinary Core Ideas and the Science and Engineering Practices have been enthusiastically adopted by…

This study aimed to identify misconceptions of 1st year and 4th year pre-service science teachers about the greenhouse effect. A questionnaire developed by Boyes and Stanisstreet ("Journal of Science Education and Technology," 2(4), 541-557, 1993) was administered to 163 pre-service science teachers in the College of Education at Kuwait…

It's not surprising that rainbows have received a great deal of attention: in textbooks, in magazines, and on the web. They are, after all, beautiful, fascinating, occasionally awe-inspiring, even a little mysterious. They are an almost perfect blend of natural beauty and simple physics. Has everything that can be said about rainbows already been…