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Mathematics Education Seminar: "Chunky and Smooth Images of Change"
4:30 pm; Cleveland Education Addition Room 216
Characterizing how quantities change (or vary) in tandem has been an important historical focus in mathematics that extends into the current teaching of mathematics. Thus, how students conceptualize quantities that change in tandem becomes critical to their mathematical development. In this paper, we propose two images of change: chunky and smooth. Chunky images of change are based in imagining change as occurring in countable and completed amounts, whereas smooth images of change are based in imagining a continually changing experience. Using empirical examples of student work, we illustrate these images of change and their implications. *Work was done with co-authors Heather Johnson, Kevin Moore