Many studies have characterized students' difficulties in understanding and reasoning about scientific mechanisms. Some of those studies have drawn implications on teaching mechanisms and how to guide students while reasoning mechanistically. In this theoretical article, I claim that one component that has not garnered much attention in the…

Data from PISA and TIMSS have recently fuelled the debate on the efficacy of Inquiry-Based Science Teaching (IBST). Some analyses of these data show that the effects of different scientific activities related to IBST carried out with students vary according to the frequency of their implementation. Extending this research, the present study…

Electrophoresis is integral to analytical and biochemistry experiences in undergraduate education; however, fundamental principles of the method are often taught in upper-level laboratories through hands-on experiences. A laboratory activity is reported that teaches the concepts of electrophoretic mobility and electroosmotic flow. A single…

Scientific evidence-based reasoning has been recognized as a form of reasoning that characterizes scientific thinking. This study questioned what scientific evidence means in the various types of scientific activities; that is, this study explored the nature of scientific evidence (NOSE). To do this, previous studies were examined to understand…

Considering students' increasing lack of interest and motivation for science subjects, it becomes almost imperative to introduce different methodology approaches in classrooms. Besides, decontextualized science teaching, where hands on activities are not sufficiently taken into account, can make the students attitude toward science-learning even…

This article provides a critical commentary on the recently released learning programme, "Climate Change: Prepare Today, Live Well Tomorrow" (Climate Change programme). The Climate Change programme is sorely needed in this time of climate emergency and we believe it to be a great start in guiding teachers in this important work. Here we…

The mystery tube is a fairly well known activity among science teachers for illustrating the nature of science. A variety of procedures have been presented for carrying out this activity, such as Scott Miller's method based on the BCSE 5E Instructional Model. Mystery tubes and other "black box" activities allow the students to engage in…

Science curriculum and pedagogy offer ideal avenues for teaching young people the critical thinking skills they need to live in a post-truth world. Drawing on the theory of epistemic cognition, we present a selection of research-based pedagogies that have been shown to be effective in developing school students' understanding of knowledge and how…

A "Framework for K-12 Science Education and the Next Generation Science Standards" ("NGSS") are intended for all students, hence "all standards, all students" (NGSS Lead States 2013). To make this vision a reality, the "NGSS" highlight three key instructional shifts: (1) explain phenomena or design solutions…

"For every action there is an equal and opposite reaction." "Except when a bug hits your car window, the car must exert more force on the bug because Newton's laws only apply in the physics classroom, right?" Students in our classrooms were able to pick out definitions as well as examples of Newton's three laws; they could…

How do scientists make inferences for something they cannot directly observe? The Black Box approach seems ideal to help students understand how scientists work. Black Boxes are sealed units; their interior is not accessible. The effort to determine their possible content (internal structure) demands successive modifications in hypothesis,…

We propose explicit and implicit approaches for the teaching of acid-base chemistry based on research into the history and nature of science (NoS). To support these instructional proposals, we identify four rationales for students to understand acid-base processes: daily life, socio-scientific, curriculum, and history of science. The extensive…

Stars are point-source emitters that are the closest to the definition of a blackbody in comparison to all other similar sources of radiation found in nature. Existing libraries on stellar spectra are thus a valuable resource that can be used to introduce the laws of thermal radiation in a classroom setting. In this article we briefly describe…

Magnetism and its various applications are essential for our daily life and for many technological developments. The term "magnetism" is almost always used as a synonym for ferromagnetism. However, the magnetic properties of the elements of the periodic table indicate that the vast majority of elements are not ferromagnetic, but rather,…

Charging and discharging processes of a capacitor through a resistor, as well as the concept of impedance in alternating current circuits, are topics covered in introductory physics courses. The experimental study of the charge and discharge of a capacitor through a resistor is a well-established lab exercise that is used to introduce concepts…