The aim of this study was to identify and classify the student's concept image and its influence on the reasoning of the problem-solving of the derivative. The research used a qualitative description approach and used eight research subjects. From the answers collected upon the given problems, we obtained several variations of students' concept…

The prime purpose of this investigation was to improve Pre-service Chemistry Teachers (PCTs) understanding of reaction related concepts of Aliphatic Hydrocarbons (AHCs). Participants were 12 PCTs selected from a pool of 87 second year PCTs taking Introductory Organic Chemistry course in Arbaminch college of Teachers Education, Southern Nations,…

Since the 1980s, studies have increasingly shown that traditional teaching causes a deterioration in students' conceptions of physics and of learning physics. The present study examined the influence of an intervention on high school students' conceptions of physics and of learning physics. The intervention included two components: a unique design…

When solving counting problems, students often struggle with determining what they are trying to count (and thus what problem type they are trying to solve and, ultimately, what formula appropriately applies). There is a need to explore potential interventions to deepen students' understanding of key distinctions between problem types and to…

The free radical chlorination of an alkane experiment is often used in the undergraduate laboratory curriculum to introduce students to the free radical mechanism, substituent effects, intermediate stability, and the relative reactivity of radicals. In this experiment, students monochlorinate multiple alkanes and analyze the reaction mixture using…

Secondary science education plays a key role in students' process to become scientifically literate citizens. However, teaching students to acquire the necessary skills and knowledge to deal with complex societal issues is challenging. This paper reports about a study in which Scrum -- a methodology to manage complex projects -- was implemented in…

In recent years, disciplinary literacy has offered a promising approach to history instruction in K-12 schools. Disciplinary literacy in history (hereafter, "historical literacy") entails approaching texts with an awareness of the interpretive nature of the field, reading and analyzing a variety of primary and secondary sources in…

Thermodynamics and kinetics are key topics in the chemistry curriculum that pose challenges to students across a range of educational levels. These struggles arise from the complexity and mixed representations inherent to the topics. Additionally, while thermodynamics and kinetics are related, students struggle to make conceptually correct…

Time is an essential construct for understanding our everyday lives and the wider world; however, it is commonly seen as a difficult topic by teachers and children throughout primary school. There is limited research into children's learning about time, and in particular, concerning young children's understandings of clocks. This study examines…

Since concept cartoons give an important opportunity for students to achieve informal physics learning, the current research focused on pre-service teachers' initial impressions of the concept cartoons in the school corridors and informal physics learning. The aim of the research was to determine pre-service teachers' initial impressions of the…

Students are expected to use the Cartesian plane to represent and reason about mathematical concepts such as number systems, geometric figures, and functions. However, the simplicity of representing mathematical concepts that the Cartesian plane provides can cause us to overlook the difficulties many students have in constructing and using it.…

In this article, the authors define learning goals, differentiate them from performance goals, and elaborate on their function and importance as the guiding force behind maintaining cognitive rigor during mathematics learning. Next, the authors present a framework that teachers can use to define and refine learning goals during lesson planning…

This study examined the effect of a Pedagogical Hypermedia Environment in the Science Discipline (PHFSD) on the acquisition of scientific concepts among fifth-graders during the 2019-2020 school years. The study adopted a quasi-experimental method with 50 fifth-grade students from a private school in Amman, Jordan, divided into two groups of 25…

Rigorous college-and-career readiness standards require significant shifts in typical mathematics instruction. Many schools and districts employ coaches to support instructional changes. Although there is evidence that coaching programs can support teaching improvement, research has yet to identify high-leverage coaching practices. In…

We describe the development and in-class evaluation of a quantum interactive learning tutorial (QuILT) on quantum key distribution, a context which involves an exciting application of quantum mechanics. The protocol used in the QuILT described here uses single photons with nonorthogonal polarization states to generate a random shared key over a…