Dinosaurs' Dilemma: The Meaning of the Variable

Series: Exploring Mathematics Series

Duration: 11

Year Published: 1971

Format: 16mm

Color: Color

Copyright: Registered 19Mar71 · LP43751 (Jul-Dec 1974) Copyright holder: Xerox Corporation Production company: Davidson Films

Description: Introduces the concept of variables in mathematical statements through an animated fable about a dinosaur's "coming of age" test. Illustrates the characteristics of a variable by showing that the statement 2 + x = 5 is neither true nor false but that its validity depends upon the value substituted for "x." Evokes student reaction to a closing sentence containing a variable.

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