Presentation: Sinuosity, Crookedest Street in the World, Rivers, and <em>y</em>=sin <em>x</em> (National Council of Teachers of Mathematics 2012 Regional Conference and Exposition: Hartford, Connecticut )

Thursday, October 25, 2012: 8:00 AM-9:00 AM

Ballroom D (Marriott)

Lead Speaker:

Ron Lancaster

Lombard and Vermont Streets in San Francisco are two of the most crooked streets in the U.S. We will use Sketchpad and Nspire CAS to explore sinuosity, a ratio used to measure the crookedness of these streets, of rivers, and of y = sin x. Connections to mathematical topics will include trigonometry, circles, distance between two points, and arc length.

Presentation Format: 9-12 Session
Grade Band Audience: Preservice and Inservice, 9 to 12

National Council of Teachers of Mathematics 2012 Regional Conference and Exposition: Hartford, Connecticut

13- Sinuosity, Crookedest Street in the World, Rivers, and y=sin x