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1 INTRODUCTION Energy is a key crosscutting concept in the physical and life sciences.1-3 Although the physical laws governing energy are universal, different academic disciplines adopt different conventions when discussing and teaching the topic of energy,4-6 which can lead to students constructing a fragmented understanding of the concept.
Abstract Visual representations in molecular biology tend to follow a set of shared conventions for using certain shapes and symbols to convey information about the size and structure of nucleotides, genes, and chromosomes. Understanding how and why biologists use these conventions to represent DNA is a key part of visual literacy in molecular biology.
An examination of students' perceptions of the Kekulé resonance representation using a perceptual learning theory lens Students in chemistry often demonstrate difficulty with the principle of resonance. Despite many attempts to mitigate this difficulty, there have been few attempts to examine the root cause of these issues.
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