“publish or perish” geometer sketchpad applets by jeff goldstein virginia beach city public...

“Publish or Perish” Geometer Sketchpad Applets

by Jeff Goldstein

Virginia Beach City Public Schools

Princess Anne Middle School

Introductions: Who, Where, What can I expect?

How do I …?

Requirements

Procedures

Reasons for Geometer’s Sketchpad:

• Interactive Software

• Relatively easy to program?

• Some Library Packages

• Internet applets

• It’s fun to “play” and learn!

Requirements Sketchpad Publishing:• Student Sketchpad works fine (some except.)

• IBM or Apple Hardware

• Of course … a web page • Must upload the jsp folder found on the CD

& place folder on the page with your applets

• Internet Explorer (local or web)

• Save your Sketchpad Applets as .html

• Upload these files to your directory

Example 1: Quadrilateral Midpoint Conjecture

This should make you a little curious about Geometry.

a. Run the Midpoint Conjecture.

b. Follow each step

c. Change the shape to try to make your conjecture false.

d. Still interested?

Exercise 1:

Use Geometer’s Sketchpad to create Triangle ABC

a. Create each point using the Segment Feature

b. Label it: “Triangle Exercise” 18 point Red

c. Save it as “Triangle”

d. Save it as an HTML

e. Test it on the Internet Explorer.

More Complex Examples

• External Hex Angles

• Clock

• Algebra Connection to y = mx + b

• Dilations

• Drawing paths (loci)

These slides and the Sketchpad files are posted:

http://www.jeffgold.net/

e-mail any questions to me at:

jeffgold1@cox.net

or

ajgoldst@VBschools.com