Pros & Cons for Using Web data
PRO: The Web contains very current data.
Ex: Up to the minute sports scores at The Sports Network
CON: Sites that are here today might be gone tommorrow.
PRO: Sites such as JSE
and DASL provide good
hints to teachers on ways to use data.
CON: Some sites might give too much guidance to students on
ways to analyze the data.
PRO: Work with large rich datasets without data entry hassles.
CON: May miss experience with genereating and entering own
PRO: Raw data can be downloaded electronically, then efficiently
converted for analysis.
CON: Varied file formats can require tedious adjustment before
data are suitable.
PRO: Easy to move electronically between linked sites.
CON: May be easier to flip through hardcopy pages than browse
a source such as Statistical Abstract of the United States on-line.
PRO: May find more meaningful real data on the Web .
CON: May miss the sense of ownership with using their own
PRO: Take advantage of computing infrastructure being built
at many schools.
CON: Some schools offer no convenient Web access - especially
PRO: Easy Web access may encourage wider range of project
CON: Popular Web datasets might be repeatedly selected by