Viewing+Tubes+Lesson

**Mathematical Models: Investigating a View Tube**
Pan Flute YouTube Video: @http://www.youtube.com/watch?v=wp9aQwP-j8M&feature=results_main&playnext=1&list=PL00DC9F0BE44E1A47

Mathematics Teacher article from which the lesson is taken:

Worksheet:

On-line Applet: @http://illuminations.nctm.org/ActivityDetail.aspx?ID=41

Geometer's SketchPad Model:

Information about mathematical modeling