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'''cirkelns area'''
'''cirkelns area'''


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Nedladdningssida: [http://www.geogebratube.org/material/show/id/16940 The area of Circles]
<br>


* pythagoras
<html>
* Accelerationslabben
<iframe scrolling="no" src="http://www.geogebratube.org/material/iframe/id/16940/width/980/height/584/border/888888/rc/false/ai/false/sdz/false/smb/false/stb/false/stbh/true/ld/false/sri/false/at/preferjava" width="980px" height="584px" style="border:0px;"> </iframe>
</html>
 
Länk till applet: [http://www.geogebratube.org/student/m16940 The Area of Circles]
 
Se också: {{svwp| Cirkel}}
 
Alternativ: [http://www.geogebratube.org/student/m3632 variant av den rektangulära förklaringen].


== Khan Academy ==
== Khan Academy ==

Nuvarande version från 2 december 2013 kl. 22.45

Animationer som rullar

Phytagoras 1

Pythagoras 2

  • vinkelsumman


GeoGebra

cirkelns area

Nedladdningssida: The area of Circles

Länk till applet: The Area of Circles

Se också: Wikipedia skriver om Cirkel

Alternativ: variant av den rektangulära förklaringen.

Khan Academy

  • övningar
  • filmer att texta

GapMinder

Datorer på proven?

Datorn är en kandidat som ersättare av miniräknare på proven. GeoGebra och Wolfram Alpha är två exempel på program som kan vara till stor hjälp. Men inte alltid.

Exempel:

Lös exvationen x<top>10</top> = 84

Lägger du in det i Wolfram Alpha får du detta svar.