added model by lookang
worksheet by jimmy and lookang
Author: Douglas Brown
Contact: dobrown@cabrillo.edu
More information at: http://weelookang.blogspot.sg/2011/03/tracker-scaling-in-yishun-junior.html
Tracker Experiment
added model by lookang
worksheet by jimmy and lookangAuthor: Douglas Brown
Contact: dobrown@cabrillo.edu
More information at: http://weelookang.blogspot.sg/2011/03/tracker-scaling-in-yishun-junior.html