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by Joan M. Kenney, Euthecia Hancewicz, Loretta Heuer, Diana Metsisto and Cynthia L. Tuttle
Table of Contents
by Loretta Heuer
What comes to mind when you see Δ? Do you see the shape literally, as a triangle? Or do you assign a symbolic meaning to it, perhaps assuming it is related to finding the slope of a line?
What does the word base conjure up for you when it's used in mathematics? Is your first instinct a numeric one in our familiar base-10 system, or perhaps in systems based on other numbers such as 4 or 12? Or do you think of base as part of a geometric figure? Did you envision the base of a polygon, which would be a line? Or of a polyhedron, which would be an area?
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