There is a distinction between using technology as a tool for doing mathematical tasks and using it to develop conceptual understanding (Dick and Hollebrands 2011). In this article, the table feature of the TI-84 Plus graphing calculator is used in the second role, enabling students to participate in the reasoning and sense-making process. This article showcases four classroom activities that use tables as a dynamic tool for inquiry, applying numerical representations to algebraic, graphical, and geometric phenomena. Although these activities are presented using the TI-84 Plus CE graphing calculator, other calculator and computer platforms can be employed; see the Teacher Guide in more4U for details.
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Karen D. Campe, firstname.lastname@example.org, taught preservice teachers at Yale University for fifteen years; before that, she taught secondary mathematics in Connecticut and Pennsylvania. Campe is a Teachers Teaching with Technology (T3) National Instructor and is passionate about using all types of technology to enhance student understanding.