Teachers Explore Linear and Exponential Growth: Spreadsheets as Cognitive Tools
Mara Alagic, Wichita State University, United States ; Diana Palenz, Wiichita State University, United States
Journal of Technology and Teacher Education Volume 14, Number 3, ISSN 1059-7069 Publisher: Society for Information Technology & Teacher Education, Waynesville, NC USA
This article addresses some of the issues relevant to the cognitive goals of information and communication technology (ICT) integration in the mathematics classroom. It focuses on the development of conceptual understanding through multiple representations. Specifically, it informs about a group of middle school mathematics teachers' learning and teaching about linear and exponential growth in a technology-oriented environment. A particular focus of the professional development was two-dimensional: (a) deepening teachers' understanding of linear and exponential growth through technology- based representations, and (b) providing effective context for students' learning from the same technology-based presentations, considering the fact that they do not have teachers' standard representations in their toolbox. We describe exploration of exponential and linear growth through spreadsheets and graphing calculators, grounded on a rich, openended, real-life problem. In addition, we report on lessons learned in attempts to explicate some bridges between classical and technology-based representations.
Alagic, M. & Palenz, D. (2006). Teachers Explore Linear and Exponential Growth: Spreadsheets as Cognitive Tools. Journal of Technology and Teacher Education, 14(3), 633-649. Waynesville, NC USA: Society for Information Technology & Teacher Education.
© 2006 Society for Information Technology & Teacher Education
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Randall Groth, Donald Spickler, Jennifer Bergner & Michael Bardzell, Salisbury University, United States
Contemporary Issues in Technology and Teacher Education Vol. 9, No. 4 (December 2009) pp. 392–411
The Views of Preservice Teachers About the Strengths and Limitations of the Use of Graphing Calculators in Mathematics Instruction
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Journal of Technology and Teacher Education Vol. 17, No. 2 (April 2009) pp. 203–227
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