[irised] Animation of the Week

[Craig Messerman]

Very nice website! The classroom activities, while very comprehensive, are a bit too canned and touchy-feely for my tastes. I see the earthquake machine as a perfect tool for open-ended or guided inquiry. Why not guide students in collecting the data used to create animation #2 and 3? Each cm of hand motion could represent a year of time, and students could stop after each earthquake to measure block motion. Use a spring scale or force sensor to measure strain build-up and you've got huge potential for a great inquiry lab. [Tom, let's start building!]

Craig Messerman
Sentinel High School, Missoula, Montana
>>> John Lahr <johnjan at lahr.org> 11/16/07 11:41 AM >>>
Jenda Johnson has started posting an "Animation of the Week" from the 
growing collection of video clips and animations that she has 
created.  See:  http://www.iris.edu/about/ENO/aotw/

This week's animations and clips describe the block-and-sandpaper 
model and show how it can be used to teach the concept of "elastic 
rebound."   In addition to geology and tectonics, earthquakes can 
provide a useful context for teaching or reviewing many basic physics 
concepts, such as sliding and static friction, forms of energy and 
conversion from one form to another, and the elastic properties of materials.

Cheers,
John


#################################/ John C. Lahr
################################/ Emeritus Seismologist
###############################/ U.S. Geological Survey
==========================/ Central Region Geologic Hazards Team
#############################//#################################
############################//##################################
                              PO Box 548  /###################################
              Corvallis, Oregon 97339 /===============================
              Phone: (541) 758-2699 /####################################
                Cell: (541) 740-4844 /#####################################
              Fax: (413) 658-2699 /######################################
                  johnjan at lahr.org /#######################################
                                  http://jclahr.com/science/


_______________________________________________
irised mailing list
irised at iris.washington.edu
http://www.iris.washington.edu/mailman/listinfo/irised

Notice:  This e-mail may contain confidential information belonging to the sender which is privileged.  The information is intended only for the use of the individual or entity named above.  If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or the taking of any action in reliance on the contents of this information is strictly prohibited.  If you have received this transmission in error, delete it without copying it and immediately notify the sender by reply e-mail.  Thank you.
<<<< GWAVASIG >>>>