Purpurogallin (PPG), an orange-red crystalline compound from nutgalls and oak bark, is an exemplar of numerous, ubiquitous natural colorants, biosynthesized through oxidative dimerization-decarboxylation of phenolic compounds. It possesses antioxidant, anticancer, and anti-inflammatory effects. Herein, a robust method is presented to allow…

The authors bring together decolonial, place attuned, and critical posthumanist orientations to analyze an event during a residential workshop organized as part of a state-funded research project on decolonizing early childhood discourses in South Africa. An invitation during the workshop to grapple with what might be unsettling by attending to…

This advanced undergraduate laboratory experiment involves the synthesis and characterization of a metal-organic framework with microporous channels that are held intact via hydrogen bonding of the coordinated water molecules. The hydrothermal synthesis of Co[subscript 3](BTC)[subscript 2]·12H[subscript 2]O (BTC = 1,3,5-benzene tricarboxylic acid)…

Remake activities reuse and recycle waste materials, working them into something useful. The experiential activity seems to be prevalent, yet limited literature covers creative ways of thinking about pedagogical approaches. This paper examines some of the emerging waste education literature before exploring further possibilities for remake…

Evaluations of professional development programmes often seek to represent definitive outcomes, with phenomena posited as discrete, bounded and independent entities, and researchers positioned as external actors. An alternative is to understand the complexity of these relationships as entanglements by applying Baradian concepts. The value of this…

Physics education has been identified as one of the public sectors that are mostly influenced by technological developments. This paper adopted the quasi-experimental pre- and post-test design to assess the effects of multimedia-aided technologies (MAT) on undergraduate students' performance in quantum physics (QP) at the University of Rwanda…

This overview is intended to help colleagues achieve successful and satisfying observations using a ripple tank. There are many observations to consider that can effectively illustrate reflection, refraction, interference and diffraction, but the most important consideration is to make every effort to enable students to see the effects we want…

In order to introduce the concept of covalent organic frameworks (COFs), an important class of predictable crystalline porous polymers, an integrated laboratory experiment for advanced organic chemistry students is reported. The importance of these kind of polymers and their multiple applications are presented as a part of key concepts in polymer…

The aim of this study is to better understand how teachers use various embodied semiotic modes -- speech, gestures, gaze, and proxemics -- when they present scientific content to the entire class. To analyse the multimodal practices of these teachers, we integrated the social semiotic theory of multimodality and the joint action theory in…

Drawing on conversations with foreign women in academic positions at one major University in Norway, this article is inspired by Barad's and Haraway's theorizing on how matter and discourse are mutually constituted through a diffractive approach. Understanding diffraction as an embodied engagement, a becoming with the data through shared…

The study of the electromagnetic spectrum, how light interacts with matter, and optical instruments such as lenses, mirrors, and gratings are important concepts in the Advanced Placement (AP) physics and introductory undergraduate physics and astronomy courses. The production, control, and analysis of light helps scientists to learn about the…

This study investigates how a professional learning approach that draws on elements from collaborative autoethnography (CAE) can support science teachers' learning about argumentation. It provides an account of how six secondary science teachers collectively explored their views and understandings of the importance of relationships for fostering…

In this dissertation, I elaborate a pedagogical practice of creative interference. I use curricular and instructional disturbances to open the possibility for different ways of thinking and acting. I aim to confront problematic representations of people and cultures through complex social contextualization, and to interfere with discourses that…

Suppose a red laser beam (of wavelength ? equal to 0.660 µm) is expanded using an optical telescope into a collimated, approximately plane wave that is 5.68 mm in diameter. Pass that beam through a tall rectangular slit whose width "a" is gradually reduced from 3.30 to 0.100 mm. Look at its image on a screen located at a distance…

This article examines the constraints of modern temporality which are antithetical to the careful consideration that working with diverse learners requires for the development of inclusive, democratic education. We take up the conceptual construct of time to explore how it mediates systemic practices that impact policy positions of inclusion in…