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GeoGebra Overview What is GeoGebra? Using GeoGebra for Teaching & Learning GeoGebra’s Web Export Open Source & GeoGebra Support Hands-on Activities
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GeoGebra
Please INSTALL GeoGebraWITH INTERNET Go to www.geogebra.org Click WebStart
third item in the left menu Click button WebStart
GeoGebra is installed automaticallyWITHOUT INTERNET Ask us for USB flash drive with
GeoGebra
GeoGebraFree Dynamic Mathematics Software
Markus & Judith Hohenwarter www.geogebra.org
GeoGebra
Overview What is GeoGebra? Using GeoGebra for Teaching &
Learning GeoGebra’s Web Export Open Source & GeoGebra Support Hands-on Activities
GeoGebra
What is GeoGebra? Dynamic Mathematics
Software For Learning and Teaching
in Schools Geometry, Algebra and
Calculus Freely available from
www.geogebra.org
GeoGebra
GeoGebra = Geometry Algebra+
Geometry & Graphics Window
Algebra Window
GeoGebra
Combination of elements ofdynamic geometry software (Sketchpad, Cabri)computer algebra systems (Derive, Maple)
High technical portabilityruns on Windows, Linux,
Solaris, MacOS Xdynamic worksheets (html)
GeoGebra is Innovative
GeoGebra
GeoGebra
Using GeoGebra forTeaching & Learning
GeoGebra
GeoGebra as a Pedagogical Tool Presentation Tool
dynamic visualizations
Modeling Tooldynamic constructions
Authoring Toolinteractive online material
GeoGebra
Examples of Using GeoGebra Visualizing
students can “see” abstract concepts
Representationsstudents can make connections
Experimentsstudents can discover mathematics
GeoGebra
Visualizing Adding Integers
GeoGebra
Visualizing Multiplying Fractions
GeoGebra
Visualizing Parameters
GeoGebra
Visualizing Parameters
GeoGebra
Visualizing Movement
GeoGebra
Visualizing Slope Functions
GeoGebra
Examples of Using GeoGebra Visualizing
students can “see” abstract concepts
Representationsstudents can make connections
Experimentsstudents can discover mathematics
GeoGebra
Multiple Representations GeoGebra: Bidirectional Connection
Symbolic ⇔ Graphics
ExamplesCoordinates ⇔ Point in Coordinate SystemCircle‘s Equation ⇔
Circle drawn in Coordinate SystemFunction‘s Equation ⇔ Graph of Function
GeoGebra
Representations: Sketch & Graph
GeoGebra
Unexpected Discoveries
GeoGebra
Representations: Geometry & Algebra
GeoGebra
Examples of Using GeoGebra Visualizing
students can “see” abstract concepts
Representationsstudents can make connections
Experimentsstudents can discover mathematics
GeoGebra
Experiments: Math & Real World
GeoGebra
Experiments: What happens when ... ?
GeoGebra
Experiments: Connections
GeoGebra
Experiments: Approximation
GeoGebra
Educational Principles
Student Activity Modeling Multiple Representations Experimental and
Guided Discovery Learning
GeoGebra
GeoGebra Communtiyand free software
GeoGebra
Why is it Free? Accessability
Available in Schools and at Home Online Collaboration
International Community User Forum – Users help Users GeoGebraWiki – Pool of Shared Materials Volunteers (Translators, Programmers)
Expandableby using other free software libraries
GeoGebra
World Wide User Community
40 languages 190 countries 400,000 visitors
per month
GeoGebra
GeoGebra User Forum
www.geogebra.org/forum
GeoGebra
GeoGebra’s Web Export Every GeoGebra Construction can be
exported as a Web Page (html)Dynamic Worksheet
Examples:Theorem of ThalesCenter of a Round Table (ggb)
Solution worksheet
GeoGebra
GeoGebraWiki – Free Materials
www.geogebra.org/wiki
GeoGebra
Future Plans
Make it Easier, Easier, Easier! Spread Sheet Window Symbolic Algebra Window (CAS) 3D extension
GeoGebra
Hands-on ActivitiesSee handout