Doug Ensley
Flash Playground
Since 2005 I have been involved in a joint project with Barbara Kaskosz of the University of Rhode Island that involves the development of tutorials and workshops for training teaching and curriculum professionals in developing teaching and learning material using Adobe Flash. The central components of this project are the MathDL Flash Forum and the website www.flashandmath.com. This project is also supported by an NSF DUE grant (0535327), and it has also resulted in a PREP workshop during the summer of 2007 and another in planning for the summer of 2008.
My largest cohesive collection of Flash comes from the supplementary material for my textbook in Discrete Mathematics.
The following are examples of new ideas:
 SelfQuizzing Applets for Precalculus. These are prototypes for Mobile Math Apps.
 Steal This Applet!, a minicourse at 2008 ICTCM
 Splines, an experiment with... well... cubic splines
 Calculus Artist, a graphdrawing toolkit for math instructors
 TransitionManager Class in Flash illustrated
 SlideShow, showing images with
transitions, all loaded from external files at runtime
 SlideShow tool, versatile
xmlbased app designed to present Maple animations in a webpage
 Envelope of Lines, an ongoing collaboration with Dan Kalman of American University
 Envelope of Lines 2, the sage continues...
 Envelope of Lines 3, a new hope...
 Envelope of Lines, final version on the book site for Dan Kalman's Uncommon Mathematical Excursions: Polynomia and Related Realms, published by the MAA.
 Automatic Differentiation, computing precise numerical derivatives using a simple extension of the MathParser class from www.flashandmath.com
 Multiplication quiz, a little applet I wrote to help my daughter with her times tables.
 A rotating cube prototype (based on work of B. Kaskosz) for the MAA Awards page
 Example Gallery for the book Flash Math Applets: Learn By Example by Doug Ensley and Barbara Kaskosz
 Applet and Information on the Leapin' Lizards puzzle
 The
following applets on "Rick Wilson's Tricky Six puzzle" supplement the
paper by Richard Guy and Alex Fink in the April 2009 issue of
Mathematics Magazine:
 Practicing the moves on pages 8586 of the article.
 Trying the puzzle using the description on page 85 of the article. This is harder than you think!
 Illustrating the puzzle described in the last paragraph of the article. This also ties in with the cover image for this issue of Mathematics Magazine.
 A collection of statistics applets
 A collection of applets for Math for Liberal Studies, developed with James Hamblin as part of a 2009 grant from the PA State System of Higher Education Faculty Professional Development Council.
 A "battle of the platforms" challenge applet for a Joint Mathematics Meeting session. Java and Flash developers came up with applets for illustrating first and second derivatives for a parametrically defined curve. The cooler ones were in 3D, but mine is still pretty nice.
 Some applets for Elementary Linear Algebra
 A Row Reduction tool
 An applet the illustrates linear combinations in the plane
 An applet that shows the span of two vectors in 3D
 A Mathematical Card Trick that you can do easily with your own cards.
 A combinatorial card puzzle from the article "Combinatorial Card Problems" from Martin Gardner's Time Travel and other Mathematical Bewilderments..
 John Conway's game of TopSwops, written to accompany the article "Combinatorial Card Problems" from Martin Gardner's Time Travel and other Mathematical Bewilderments.
 The Two Player version of John Conway's game of TopSwops, written to accompany the article "Combinatorial Card Problems" from Martin Gardner's Time Travel and other Mathematical Bewilderments.
 John Conway's game of BotDrops, written to accompany the article "Combinatorial Card Problems" from Martin Gardner's Time Travel and other Mathematical Bewilderments.
 General custom card classes
 Card turning deal
 Twopile deal  permutations only
 My Graph Slider puzzle which has a mobile version in the Android Market
 My Fifteen Puzzle to illustrate permutations in this kind of puzzle.
 Wilson College Timeline
Contact InformationDouglas Ensley, Ph.D.Professor of Mathematics Shippensburg University Shippensburg, PA 17257 Phone: 717.477.1477 Fax: 717.477.4009 Email: deensley at ship.edu Web: http://webspace.ship.edu/deensley/ or http://www.dougensley.com 
