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Skurnick, Ronald – Mathematics and Computer Education, 2005
Pascal's Triangle is, without question, the most well-known triangular array of numbers in all of mathematics. A well-known algorithm for constructing Pascal's Triangle is based on the following two observations. The outer edges of the triangle consist of all 1's. Each number not lying on the outer edges is the sum of the two numbers above it in…
Descriptors: Geometric Concepts, Numbers, Mathematics Activities, Geometry
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Helfgott, Michel; Simonsen, Linda M. – Mathematics and Computer Education, 1998
Presents an activity to investigate physico-mathematical concepts and provide mathematics arguments that are very close to a proof with the advent and availability of powerful technology. Demonstrates without using calculus how the law of reflection for parabolas is derived from Fermat's principle of least time. (ASK)
Descriptors: Educational Technology, Geometry, Graphing Calculators, Higher Education