Automatic Analysis of Student Drawings in Chemistry Classes

Markos Stamatakis, Wolfgang Gritz, Jos Oldag, Anett Hoppe, Sascha Schanze, Ralph Ewerth

Published: 01 Jan 2023, Last Modified: 14 Jan 2026CrossrefEveryoneRevisionsCC BY-SA 4.0
Abstract: Automatic analyses of student drawings in chemistry education have the potential to support classroom teaching. To date, related work on handwritten chemical structures or formulas is limited to well-defined presentation formats, e.g., Lewis structures. However, the large variety of possible illustrations in student drawings in chemical education has not been addressed yet. In this paper, we present a novel approach to identify visual primitives in student drawings from chemistry classes. Since the field lacks suitable datasets for the given task, we introduce a method to synthetically create a dataset for visual primitives. We demonstrate how detected visual primitives can be used to automatically classify drawings according to a taxonomy of drawing characteristics in chemistry and physics. Our experiments show that (1) the detection of visual primitives in student drawings, and (2) the subsequent classification of chemistry- and physics-specific drawing characteristics is possible.
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