This study aimed to investigate the effects of the applications conducted in the science center within the scope of the science lesson "Solar System and Beyond" unit of the 7th-grade students in the secondary school, on the perceptions of the students about the out-of-school learning environments (OSLEs). In the quantitative part of the…

Science textbooks play an important role in making scientific knowledge and applications available to learners. In most countries, science curriculum expects to cultivate scientifically literate individuals who are able to use science process skills. Critical analysis of textbooks is therefore crucial to determine whether they can facilitate this…

The study investigated the impact of PhET simulation-based learning on students' motivation and academic achievement in learning oscillations and waves among Malawian secondary students. The following research questions guided the study: (i) What were students' motivation and academic achievement levels at the beginning of the study in oscillation…

The aim of this study is to investigate the effect of argumentation-based teaching carried out with secondary school 7th grade students on students' scientific process skills. The sample of the study consists of 7th grade students in two different branches studying at a public school in the Central Anatolia Region of Turkey in the 2018-2019…

Triboluminescence is a fascinating phenomenon that can engage students' interest in chemistry. However, safe, cost-effective, and accessible laboratory experiments featuring highly triboluminescent substances are limited. To bridge this gap, we present a simple, rapid, semimicro test tube preparation of the visually engaging manganese complex…

Learning about redox and electrochemistry in senior secondary school science has long been recognised as both impenetrable to many students and problematic for teachers. A significant barrier to understanding this area of learning has been the apparent exclusive use of implicit analogous definitions for the foundation concept of an oxidation…

The overarching goal of this paper is to illustrate the interplay between theory, design principles, and curriculum (meant broadly, to include both written and enacted curriculum). This dialogue is illustrated in the context of the design and implementation of a particular curricular unit on thermodynamics intended for advanced secondary students…

The ability to make criteria-based and thought-out decisions in everyday life as well as to answer questions pertaining to society at large, such as those regarding climate change and the loss of biodiversity, is becoming more and more important against the backdrop of an increasingly complex world with a wide range of options for action or…

For many high school students, physics is an abstract subject with complex mathematical statements explaining the world around them. The mathematics can feel intimidating and the introduction of difficult vocabulary, such as "force," "kinetic energy," or "spectroscopy," can give students the impression that physics is…

The objective of this study was to analyze visual representations of redox reactions and related content in four Brazilian secondary school chemistry textbooks. The study aimed to identify which representations were used and to evaluate how these representations were linked to one another and to the main text. Data were analyzed regarding…

Electromagnetic radiation can be classified into two major types depending on its ability to detach electrons from atoms: ionising and non-ionising. The aforementioned categorization is significant due to the effects of ionising radiation on human tissue (e.g. carcinogenesis). However, many students around the globe cannot distinguish these two…

The concept of a sinusoidal wave traveling along a string is included in all secondary education physics books and as a result is being taught in undergraduate lectures around the globe. The didactic approach that follows is advantageous since it provides in a simplified way (through basic mathematical tools) a description of a disturbance that…

A simple, cheap, and easy to make ionisation chamber to investigate the decay of Radon-220. Requires no expensive meters, experiment is carried out using thoriated gas mantles to produce the Radon-220, and the chambers are used with low cost digital multimeters. An opportunity for 16-18 students to carry out a hands-on experiment with an ionising…

This study aimed at designing a framework to help students develop a conceptual understanding of redox reactions, which draws on constructivist learning theory. This framework was in the form of participatory teaching and learning approach comprising Insight, Interaction, Task, and Forum. The framework was designed and developed based on the…

3D printing and simple electronics were used to create a polarimeter suitable for a variety of chemistry courses. This device allows instructors to demonstrate optical activity but is also easy to use and low cost enough to be widely available for student use, as well. The instrument uses an LED light source and detector housed in a 3D-printed…