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Drive-Through Deceit: Related Web Sites

ACTIVITY D

Average (mean)

NCTM - Comparing Properties of the Mean and the Median
This resource provides an applet which students can manipulate to test out how different values change the man and median of a data set. Teachers can use the applet as the centerpiece of any activity of their own choosing or follow the activity described on the site.

Ask Dr. Math
Explore past questions about average, mean, median, mode, and range posed to Dr. Math on this Drexel University-sponsored site.

Scale

The Mathematics of Cartography
Cartography, an exacting science of constructing maps of all kinds, is the subject of this comprehensive web site. Exploring scale, coordinate systems, and projections, the site also includes teaching suggestions, lesson plans, and a wide assortment of student activities that show how mathematics is integral to this science.

Tacoma Narrows Bridge Lesson Plans - Mathematics of Scale
This lesson plan concludes with students creating a scale drawing of a figure, a building, or a bridge. Data about the Tacoma Narrows Bridge helps them get started.

Mathstutor.com's Ratio and Proportion
This site defines and gives examples and explanations of the link between scale and ratio.

A Question of Scale: Quarks to Quasars
How far does increasing by the power of ten get you? To the outer reaches of the universe and the innermost parts of the atom, as this interactive site explains. Visitors here can manipulate images to expand them b y powers of ten.

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