An Instrumental Approach Towards Graduate Teaching Instructors’ Use of Applets
Page: 90
This study investigated how mathematics instructors’ instructional goals for teaching constant rate of change (CROC) influences their perception and use of applets in mathematics instruction. This report presents results from a clinical interview with graduate teaching instructors (GTIs) to illustrate the degree to which their mathematical meanings for teaching (MMT) impact their image for how an applet should be used and how the GTIs’ use of the applet influences their MMT. I use instrumentation theory as a lens for explaining the relationship that develops between an instructor and particular features of the applet. I conclude with a discussion of how GTIs MMT for constate rate of change impacts their intended use of an applet’s feature and how they imagine they can use an applet to advance students’ mathematical understanding of CROC.