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But Technology also leads to A Disjointed Combination of Different Media –Textbook and Exercises are Pencil&Paper –Supplements are placed on the web –Minitab/ActiveStats are often “stand alone” activities Lots of Material that cannot be Assessed –Tests and Quizzes remain pencil&paper –Applets primarily for Illustration –Worksheet Assignments often mean Grade inflation
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Statistical Worksheets with Applets
MAA Spring MeetingMarch 12, 2005
Supported by NSF-DUE 0126682
Technology in Statistics
• Allows Visualization• Allows Computation
– Mean, Standard Deviation, Random Samples– Least squares line
• Allows Case Studies/Data Exploration– Minitab for exploring extended applications– Simple “Data Mining” activities
But Technology also leads to
• A Disjointed Combination of Different Media– Textbook and Exercises are Pencil&Paper– Supplements are placed on the web– Minitab/ActiveStats are often “stand alone” activities
• Lots of Material that cannot be Assessed– Tests and Quizzes remain pencil&paper– Applets primarily for Illustration– Worksheet Assignments often mean Grade inflation
Avoiding the Pitfalls
• Learning must be active– Applets must be integrated into assignments– Minitab, Maple, etc. must require some
element of creativity• Students must be engaged
– Create active learning environment– Require regular interactive assignments
Implementation at ETSU
• About 1200 students each semester– Idea is introduced in a classroom setting
(the Mansion)– Online “homework” assignments require
interaction and exploration of assignment– Next class meeting is in the statistics laboratory
(The Stat Cave )– Stat Cave is for extensive Minitab Application
Benefits and Shortcomings
• Expected Benefits – Improved performance in gen. ed. experience– Better comprehension of statistics concepts– Better interaction between faculty and students
• A Few Problems– High computer use leads to many computer repairs– Scheduling– Serving online courses
Unintended Benefits
• Service to other departments– Sections for other disciplines in which “their”
preferred stat package is used instead of Minitab– Specialized training for specific populations
• Computer Science Laboratory Experiences• Sociology/Psychology sections• Biology-specific section
• Improved retention and better attitudes
The Course Site
• New Web Site being Developed• Current web site is at
http://www.etsu.edu/math/seier/1530/1530link.htm
• Let’s take a look!
The Next Step
• GOAL: To develop online worksheets that incorporate all 4 stages– Amenable for Lecture– Based on interactive exercises with applets– Utilize Minitab data– Include an assessment component
• (Actually, Minitab experience will not be replaced, only augmented)
SWAPPLETS!
• Statistics Worksheets with Applets– Pronounced (swop-lets)– Sample at http://
faculty.etsu.edu/knisleyj/swapplets/• Must complete exercises on each page before
you can move to the next• Last Page of Swapplet has exercises and
email box so results can be sent to instructor
Incorrect Answer results in a hint!
Thank you!
Any Questions?