Crop circles challenge!

October 2005 - January 2010–  Enigma "Crop circles" a challenge among European students to reconstruct some Crop circles formations using Geogebra (a free maths software www.geogebra.org), not too difficult and very intriguing.  On this website  the contributions of European colleagues and students.  For more information regarding crop circles read more here >>  and also here >>

Belgian Crop circles  >> http://www.math.be/    
Italian Crop circles  >>  1  - 2 
- - 4 - 5
Greek Crop circles   1 - 2 - 3 - 4   >>  users.sch.gr/dkastani/grcrop.html - users.sch.gr/dkastani/encrop.html
Spanish Galician Crop circles >> h
ttp://centros.edu.xunta.es/iesramoncabanillas/cropcircles/cropcircles_sp.htm
English Crop circles  >> 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 <- using ppt presentation and Sketchpad software -
Teacher Emily Foulkes and her students -PRIORY COMMUNITY SCHOOL - Weston-Super-Mare NW Somerset - UK.
New 2010 Dutch Crop Circles >>
Rieg en Akkie van Eijk's students:  - Tessa  -  Remco -   Myrea  (pdf  version) - Lizan's Video

January 2006 – Etwinning Awards 2006 - 1st prize - Digital resources
Download here a crop circle reconstruction lesson plan in:
 
English - French - Dutch - Italian - Greek - Spanish - Galician - Romanian - Polish - Swedish
- Russian - Czech version (pdf format).
Translation: J.P. Van der Elst, Noel Jean Lambert, Ivan De Winne, Palmira Ronchi, Dimitris Kastaniotis, Benito Buā, Daniela Harsan, Marzanna Miasko - 
Sten Rydh - Irina Hagman

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