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In contrast to classical physics, general relativity (GR) interprets gravitation as geometry. Objects follow geodesic curves in four-dimensional spacetime and curvature creates the illusion of a gravitational force. Despite the scientific relevance of this theory, educational research in the domain of GR is scarce. This study contributes to a growing body of knowledge concerning secondary students’ understanding of GR. Based on a thematic analysis of student discussions of 97 Norwegian physics students(18-19 years), we present results on students’ understanding of geodesic movement in spacetime. Our findings can give guidance to improve learning and instruction of GR at upper secondary level.

Navigating four dimensions – upper secondary students’ understanding of movement in spacetime