Conference PaperThe Enactment of an Instant: A Study of Gesture in Introductory PhysicsBooth, Emma Teresa; Flood, Virginia J; Harrer, Benedikt WLindgren, R; Asino, T; Kyza, E A; Looi, C-K; Keifert, D T; Suarez, EGesture has been shown to play an important role in how learners conceptualize phenomena in physics. However, we know little about how gesture is used to conceptualize instantaneity. Drawing on multimodal microanalysis of interaction, we examine how undergraduate physics students use representational gesture to make sense of instants while modeling energy dynamics. Our analysis describes four different forms of representational gesture used to capture instantaneity: These include (1) Replay loop of scenario, (2) Subinterval on timeline, (3) Freeze frame of scenario, and (4) Indexical location on timeline.International Society of the Learning Sciences2024-06-1010512502Proceedings of the International Conference of the Learning Sciences ICLS 20241819-0138979-8-9906980-0-0https://doi.org/10.22318/icls2024.4906122201821Buffalo, NYNational Science Foundation