1. GeoGebra Workshop GCCTM Meeting Dr. Joanne Goodell Cleveland State University September 13, 2010

2. What is GeoGebra A free dynamic mathematics software for schools that joins geometry, algebra and calculus Two windows, one for graphics and the other for algebraic expressions form the interface Drawing pad used like Geometer’s Sketchpad, can be used without the algebra window Can create interactive Java applets from your drawings that can be run from any web site Book has great introductory materials Wiki has lots of free materials Could be used to supplement or replace GSP

3. GeoGebra Options Can run as independent Java applet from the computer you are using-this may not work in the lab without tech support setting it up. Web start runs the Java applet from within the browser installed on the computer you are using-will probably work without tech support, but you must have internet access.

4. Links for GeoGebra Home page for GeoGebra http://www.geogebra.org/cms/ Book has great introductory materials http://www.geogebra.org/book/intro-en/ Wiki is used to download and upload teaching materials http://www.geogebra.org/en/wiki/index.p hp/Englishhttp://www.geogebra.org/en/wiki/index.p hp/English

5. Try These http://www.geogebra.org/en/upload/files/en glish/Dixon_RN/Circle_Basics.htmlhttp://www.geogebra.org/en/upload/files/en glish/Dixon_RN/Circle_Basics.html http://www.geogebra.org/en/upload/files/en glish/Cullen_Stevens/trianglecenters.htmlhttp://www.geogebra.org/en/upload/files/en glish/Cullen_Stevens/trianglecenters.html http://www.geogebra.org/en/upload/files/kn wilson/Transformations.htmlhttp://www.geogebra.org/en/upload/files/kn wilson/Transformations.html http://www.geogebra.org/book/intro-en/ Do activities 5, 7, 9 and 10 at least from the book before branching out to further explorations on the next slide.

6. GeoGebra Main Site http://www.geogebra.org Classroom activities index http://www.geogebra.org/en/wiki/index.p hp/Englishhttp://www.geogebra.org/en/wiki/index.p hp/English 4th grade math teaching activities http://geogebrawiki.wikispaces.com/Home

7. Demonstrations of how to use GeoGebra http://math247.pbworks.com/Learn-and- Use-GeoGebrahttp://math247.pbworks.com/Learn-and- Use-GeoGebra Practicing slope-intercept interactive worksheet http://www.geogebra.org/en/upload/files/ english/steve_phelps/CP_Geometry/Slope_ intercept_practice.htmlhttp://www.geogebra.org/en/upload/files/ english/steve_phelps/CP_Geometry/Slope_ intercept_practice.html Math 24 7 website http://www.mathcasts.org/

8. Bisecting angles mathcast http://www.youtube.com/watch?v=wVOaHn RGg3c&p=5F6C060E4E4F2AB0&index=8&pl aynext=1http://www.youtube.com/watch?v=wVOaHn RGg3c&p=5F6C060E4E4F2AB0&index=8&pl aynext=1 Measuring and drawing angles with protractor – REALLY GREAT FOR SMART BOARD!! http://mathcasts.org/gg/student/angles/angle s/angles_index.htmlhttp://mathcasts.org/gg/student/angles/angle s/angles_index.html Making an interactive worksheet http://www.youtube.com/watch?v=SVSNHh Ceukw&NR=1http://www.youtube.com/watch?v=SVSNHh Ceukw&NR=1

9. Further Exploration Look at other activities and resources online. Wiki middle school level contains protractor practice Adapt Sketchpad activities for GeoGebra Write new explorations to match your curriculum and standards and export as java applets for your students to use on your website.