Electronic Proceedings of the Twelfth Annual International Conference on Technology in Collegiate MathematicsSan Francisco, California, November 4-7, 1999Paper C010Preparing Inservice Middle Grades Teachers to Use the TI-73 |
Ronald J. HarshbargerDepartment of Mathematics University of South Carolina Beaufort Hilton Head, SC 29928 USA Phone: (843) 785-3995 ronharsh@hargray.com list of all papers by this author | Lisa S. YoccoDepartment of Mathematics and Learning Support Georgia Southern University P.O. Box 8121 Statesboro, GA 30460-8121 USA Phone: (912) 681-0264 lisay@gsvms2.cc.gasou.edu list of all papers by this author |
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In the workshop middle grades teachers experienced how to make learning math interesting and fun through projects using the special features of the TI-73. We introduced the teachers to the TI-73 by first showing them some keystrokes and features that are useful in the middle grades classroom, and then had them participate in activities or projects designed to demonstrate the capabilities of the calculator. Courtesy of the Texas Instruments loan program, each teacher had a TI-73 to work through the projects that they could use in their classroom. Some of the activities that were presented illustrate how to prepare statistical description of data, how to use integer division in elementary number theory, how to use the draw and graphing capabilities to introduce analytic geometry, and how to bring several features together in one project.
In addition to the features on other graphing calculators, the TI-73 features include integer division, measurement conversion, a text editor, operations with constants, operations with fractions, simplification of fractions, keystroke conversion of fractions to and from decimals, and conversion of improper fractions to and from mixed numbers. It also has more statistical features than most other calculators; it displays pie graphs, pictographs, and enhanced histograms, and has spreadsheet capabilities. Some of the TI-73 features are designed specifically to enhance teaching of mathematical concepts. For example, it has an auto simplification mode for fractions, but it also has a manual simplification mode, which asks students to assist in the simplification process.
The goal of the workshop was to offer activities that assist inservice teachers in learning how to use the TI-73 and in using proper pedagogy as they introduce technology into their classrooms. The workshop was offered in several locations, and the TI-73 was received enthusiastically.
Keyword(s): graphing calculators, teacher training