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rxte1
11-27-2013, 08:56 AM
We discovered Geogebra about 10 months ago, when my daughter was starting Saxon Math 8/7 (prealgebra). It has been a good source for activities in the open-ended portion of her math lessons. In case it is of interest to anyone, here are some of the links I have been using to plan activities:


Tutorials & Demonstrations


GeoGebra (http://mathandmultimedia.com/geogebra/)
Free Downloadable GeoGebra Tutorials in PDF (http://mathandmultimedia.com/2011/07/05/geogebra-tutorials-in-pdf/)
Project Maths - Learning and teaching for the 21st Century (http://www.projectmaths.ie/geobra/)
Google Education on Air GeoGebra hangouts | GeoGebra Blog (http://blog.geogebra.org/2013/04/google-education-on-air-geogebra-hangouts-live/)
GeoGebra Demonstrations - Tom Gettys (http://media.lanecc.edu/users/gettyst/GeoGebraDemonstrations.html)
GeoGebra STEM by tony houghton on Prezi (http://prezi.com/92z8atpqk1gr/geogebra-stem/)
http://research.shu.ac.uk/geogebra/GIS_Guides/Official%20GeoGebra%20Manual.pdf
Modelling Sequences in GeoGebra (http://www.jkhudson.plus.com/maths/seriesgeogebra.htm)


Geometry and Geometric Construction


Math Hombre: GeoGebra (http://mathhombre.blogspot.com/p/geogebra.html)
ProofWiki:Books/Euclid/The Elements - ProofWiki (http://www.proofwiki.org/wiki/ProofWiki:Books/Euclid/The_Elements)
Geometry Articles, Theorems, Problems, and Interactive Illustrations (http://www.cut-the-knot.org/geometry.shtml)
CK-12 Foundation | Geometry (http://www.ck12.org/geometry/)


Snowflakes


Feature Gallery: Macro Snowflakes by Alexei Kljatov | adventure journal (http://www.adventure-journal.com/2013/11/feature-gallery-macro-snowflakes-by-alexei-kljatov/)
Snowflakes with GeoGebra - GeoGebraTube (http://www.geogebratube.org/material/show/id/5062)


Sangaku (Japanese Temple Geometry)


http://www.physics.princeton.edu/~trothman/templegeometry.pdf (http://www.physics.princeton.edu/%7Etrothman/templegeometry.pdf)
Sangaku: Reflections on the Phenomenon (http://www.cut-the-knot.org/pythagoras/Sangaku.shtml)
Sangaku - Sacred Mathematics (http://media.lanecc.edu/users/gettyst/Geogebra/Sangaku.html)
THE SUSAKA TRIANGLE PROBLEM - GeoGebraTube (http://geogebratube.com/material/show/id/8491)
Arithmetic Mean Sangaku (http://www.cut-the-knot.org/Curriculum/Geometry/FourCircleSangaku.shtml)
A Geometric Mean Sangaku (http://www.cut-the-knot.org/pythagoras/GMSangaku.shtml)
Sangaku - problems (http://hermay.org/jconstant/wasan/sangaku/index.html)


Tessellation


Totally Tessellated: Tessellations of Quadrilaterals (http://library.thinkquest.org/16661/simple.of.non-regular.polygons/quadrilaterals.html)
GeoGebra 4.0: Tessellation - YouTube (http://www.youtube.com/watch?v=3rc1Icu2vm8)


Crop Circles


http://www.comathsnet.it/c/crop_circle/lessonplan_en.pdf
Geogebra Extension - Crop Circles (http://www.rcs.k12.ny.us/webpages/mlawrence/resources.cfm?subpage=1174928)
https://ethemes.missouri.edu/themes/1222?locale=en1301
[email protected] (Collaborative maths on the net) - Etwinning project 2005 (http://www.comathsnet.it/c/crop_circles.html)