“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