Keynote - GeoGebra
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GeoGebra in Math Education A Global Community Presented by Linda Fahlberg- Stojanovska
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Transcript of Keynote - GeoGebra
GeoGebra in Math Education A Global Community
Presented by Linda Fahlberg-Stojanovska
Dynamic Mathematics for EveryoneWhat does this mean?• Dynamic Mathematics
Interactive software that helps visualize and understand mathematics
Simple interface, powerful mathematics
Dynamic Mathematics for EveryoneWhat does this mean?
• for Everyone
FOSS (free and open source software)
Translatable (and already translated into more than 50 languages by volunteers)
• FOSS (Free and open source software) http://geogebra.org
• Can be downloaded for all platforms
• Can be used on school LANs directlyvia a web browser (no install)
• Can be used offline
Why GeoGebra?
5
First Time GeoGebra
Download Button
Tabs
CLICK NOW!
6
RIGHT NOW
GeoGebra Download Page
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Project -Dynamic Square
– Make a regular polygon with 4 sides
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Dynamic Square
• Definitions of a square? – Regular polygon with 4 sides• GeoGebra: Regular polygon tool
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Dynamic Square
– With active• Click once to get Point A.
• Click again to get Point B.
• Dialog box will open … 4 is there… click on OK.
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Square Dynamics– CLICK on the Move tool – You can click and drag point A or point B.
– The square is ALWAYS a square.
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Square Dynamics– You can click and drag the square itself.
This will only move the square- the dimensions of the square
depend on A and B!
- Try to click and drag point C or point D.
– Why can’t you click and drag points C or D?– Answer: They are dependent on A and B.
• Many, many applications– Ready to use applets are available.– Is easy to use, powerful and dynamic.– Teachers can use it to better understand what
they are teaching.– Teachers and students can freely use it anywhere.– Students can build animations, simulators, …
Why GeoGebra?
• Ready-to-use applet activities are available.
Why GeoGebra?
http://geogebramath.org/lms/nav/activity.jsp?sid=__shared&cid=emready@k_7_measurement_and_geometry&lid=6
• Teachers/Students can use it to better understand
Why GeoGebra?
http://geogebramath.org/lms/nav/activity.jsp?sid=__shared&cid=emready@linda_s_calculus_class&lid=2
• Many, many applications– Students can do great things!
• Challengehttp://madeiramath2.wikispaces.com/Weekly+GeoGebra+Construction+Challenges
• Result – Incredible student creativity– http://madeiramath2.wikispaces.com/James+OC+Portfolio+Page
• Credit: Steve Phelps, HS Teacher
Why GeoGebra?
• geogebramath.org
Why GeoGebra?
http://geogebramath.org/lms/nav/activity.jsp?sid=__shared&cid=emready@k_7_measurement_and_geometry&lid=5
• YouTube GeoGebra Channel
Why GeoGebra?
http://www.youtube.com/v/oR8juO00KdU
• YouTube GeoGebra Channel
Why GeoGebra?
http://www.youtube.com/v/oR8juO00KdU
Global Community
in Numbers
Millions of Users in 190 Countries50 languages> 120 Volunteer translators10 Developers> 40 Institutes15 000 Online Learning Objects
Visitors on www.geogebra.org
Visitors: 20.000/Day or 600.000/Month Downloads: 10.000/Day or 300.000/Month From 190 Countries & Territories
2004 2005 2006 2007 2008 20090
500000
1000000
1500000
2000000
2500000
3000000
3500000
4000000
4500000
5000000
GeoGebra Community
• Teacher training and support– Offer workshops & support
• Material and software development– Share free materials
• Research– Encourage and coordinate collaborative
research
2009 GeoGebra Institutes more coming soon …
www.geogebra.org/community
GeoGebra Certifications
• GeoGebra Users: effective use in own classroom• Creative GeoGebra Users: create and share innovative
teaching; provide support and workshops in own schools or districts
• GeoGebra Trainers: carry out practitioner research on innovative practices; deliver results in own country
• GeoGebra Institute Trainers: highly experienced GeoGebra presenters, trainers, and researches; provide support and offer training for IGI participants
Additional IGI activities• Text books and online courses with integrated GeoGebra materials in
e.g. Australia, Austria, Belgium, Chile, France, Germany, Hungary, Norway, Singapore, Taiwan, USA
• Book: Model-Centered Learning with GeoGebra: Theory and Practice in Mathematics Education
• Journal Special Issues: Mathematics, Statistics, Operation Research Connections
• On-line assessment: TAO (Luxembourg), WebWork (Rochester, NY), STACK (Birmingham, UK), GeoGebraTUTOR (Barcelona, Montreal)
• Work in developing countries: SchoolNet Africa, African Institute for Mathematical Sciences, SA
• Online journal: Connecting research and practice, USA, Canada
Implicit Curves: f(x,y) = 0
Philipp Birklbauer, Austria
Locus Line Equation
Sergio Rodriguez & Miguel Abanades, Spain
GeoGebraTouch
Michael Borcherds, UK & Yves Kreis, Luxembourg
GeoGebra3D
Andre Eriksson, Sweden & Mathieu Blossier, France
GeoGebraSpreadsheet
George Sturr, California
GeoGebraTube
Material PlatformDirect upload from
GeoGebraRatingComments
Florian Sonner, Germany
GeoGebraMobile
GeoGebra Applets should work on Smartphones
iPhone, iPad, Android
Gabor Ancin & Zoltan Kovacs, Szeged, Hungary
One Laptop per Child Project
Szeged, Hungary
GeoGebra in Math Education A Global Community
Presented by Linda Fahlberg-Stojanovska
