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A Leadership Series:
Using Technology to Teach Mathematics and Science
Statistical Applets: The Good, the Bad, and the Ugly
Brian E. Smith
McGill University, Montreal, Canada
Brian E. SmithThe appraisal of applets includes a number of different criteria. Ease of use is determined by loading speed and running speed. Another criterion is documentation. Questions to be asked are whether the applet explains its intended concept and whether it provides detailed instructions. Clarity of concept is another important factor. Specific questions with respect to clarity are whether the applet does what it promises and whether it successfully makes its intended point. Esthetics is an important criterion that is concerned with the effective use of graphics. Interactivity involves good use of interactive features such as sliders. Finally, versatility considers whether the applet is suitable for classroom demonstration and whether students can use it as an aid to understanding the concept.
Questions to ask yourself when evaluating or using an applet include:
Who wrote the applet?
When was it written?
Is it supported/updated?
Is it reliable – will it be there when you need it?
Is it copyrighted? Do you need permission to use it?
Can you modify it – is source code available?

Applets can be found by using a search engine such as google or yahoo. They can also be found within applet megasites, of which the following are examples:

http://www.stat.duke.edu/sites/java.html
http://wise.cgu.edu/appletsf.shtml
http://www.ltsn.gla.ac.uk/index.asp?cat=117
http://www.bbns.org/us/math/ap_stats/applets/applets.html
Some of my favorite statistical applets are listed below by topic:
Histogram:
http://www.stat.sc.edu/~west/javahtml/
Histogram.html
Mean and Median:

http://www.ruf.rice.edu/~lane/stat_sim/
descriptive/index.html

Normal Approximations
To Binomial:

http://www.ruf.rice.edu/~lane/stat_sim/
normal_approx/index.html

Regression by Eye:
http://www.ruf.rice.edu/~lane/stat_sim/
reg_by_eye/index.html
Guessing Correlations: http://www.stat.uiuc.edu/~stat100/java/
guess//GCApplet.html
Central Limit Theorem:

http://lewis.eeb.uconn.edu/lewishome/applets
/clt/clt.html

  http://www.ruf.rice.edu/~lane/stat_sim/
sampling_dist/index.html
  http://web.uvic.ca/~esfchan/stats/
  http://www.math.csusb.edu/faculty/stanton/m262/
central_limit_theorem/clt_old.html
  http://www.rand.org/methodology/stat/
applets/clt.html
  http://sciris.shu.edu/thinklets/Math/Statistics/
CLT/clt.html

(Note terminology: THINKLETS)
  http://www.stat.sc.edu/~west/javahtml/CLT.html
  http://users.ece.gatech.edu/users/gtz/java/clt/
  http://www.ms.uky.edu/~lancastr/java/cltexp.html
(Note: this applet is a demonstration only)
  http://www.gams.com/~erwin/cenlim/cenlim.html
(Note: user defines parent population)
  http://www.math.tamu.edu/FiniteMath/Classes/
Probability/gaussian.html

(Note: instructions say to select “More” but it does not exist!)
 

http://www.maths.soton.ac.uk/teaching/units/ma1c6/
links/samplingapplet/samplingapplet.html

  http://www.users.on.net/zhcchz/java/quincunx/
quincunx.8.1.html

 

Back
 
   
Using a Personal Web Site with WEB CT in a Science Class
LUCID: A Web-based Learning System for General Chemistry
Teaching with 3-D Computer Graphics: Molecular Display and Genomic Analysis
Maple 8 and Maplets: A New Way to Use Computer Algebra in the Classroom
Using Java Applets To Enhance the Learning/Teaching of Mathematics
Statistical Applets: The Good, the Bad, and the Ugly
Ivy without Walls: A Complete System for Educational Technology
 
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