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Virtual Data Collection for Real Understanding
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Ozgun-Koca, S. Asli; Edwards, Thomas G. – Mathematics Teaching in the Middle School, 2011
A common activity--having students collect data to measure the radius and circumference of circular objects--can be given a new twist. These data can be viewed virtually using technology. A dynamic geometry environment coupled with the powerful capabilities of a spreadsheet can greatly enhance student learning. The activity in this article…
Descriptors: Graphing Calculators, Geometric Concepts, Geometry, Data Collection
A Historical Perspective from "a" to "c"
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Edwards, Thomas G.; Ozgun-Koca, S. Asli – Mathematics Teaching in the Middle School, 2010
Evolving technology has played an important part in a common quadratic-function lesson. Having been mentioned repeatedly in numerous reform documents, a recurring lesson has involved changing the parameters in f(x) = ax[superscript 2] + bx + c and studying the effects on the graph. In both NCTM Yearbooks and NCTM Standards documents, technology is…
Descriptors: Critical Thinking, Mathematics Instruction, Educational Technology, Thinking Skills
Exploring Quadratic Functions: From a to c.
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Edwards, Thomas G. – Mathematics Teacher, 1996
Explores the effects of varying the coefficients in the general quadratic function using graphing calculators. (MKR)
Descriptors: Algebra, Functions (Mathematics), Graphing Calculators, Graphs
Pythagorean Triples Served for Dessert.
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Edwards, Thomas G. – Mathematics Teaching in the Middle School, 2000
Presents activities to find Pythagorean triples using the TI-83, a graphing calculator. (KHR)
Descriptors: Graphing Calculators, Mathematics Activities, Mathematics Education, Mathematics Instruction