In GeoGebra you can set the following items on the drawing pad. It is currently. (22/9-2012) possible to make 6 various types of points.
New point
Point on object
Connect / Release point
Midpoint or center
Crossings between two objects
Complex number
Try the following:
- Show grid (activated by right-clicking on the Drawing Pad and selecting Grid).
- Show axes (activated by right-clicking on the Draw block and select Axis).
- Try to put some new items on the drawing pad.
- Note that the points of coordinates also appears in Algebra (activated submenu show).
Extra:
- Try to make 2 lines, which intersect.
- Find
-button under the points in the Tools Menu. - Press both lines or pressure on the intersection of the 2 lines.
- Now you have found the intersection.
- Coordinates can be read in Algebra (activated submenu show).
Tip!
If you put a new point on an axis, så binder du punktet til aksen. This allows you to only flytte punktet rundt på aksen.
Hej Troels
Jeg er i færd med at lave en animation af jordens rotation om solen, og bruger din beskrivelse af det.
http://ggbkursus.dk/geogebra/4-ekspert/lav-animation-af-jordens-rotation-omkring-solen-og-manens-omkring-jorden/
Jeg kan ikke finde ud af hvordan du hæfter noget grafik på dine punkter..
Vil du fortælle det??
Vh og på forhånd tak.
Carsten Schou
Parkvejens Skole
Hej Carsten.
Du lægger billederne ind på tegneblokken og ændrer ‘hjørne 1’ to (skriv kun det, som står efter kolon):
The Sun: The Sun – (1, 1)
The Moon: M – (0.3, 0.3)
Earth: J – (0.5, 0.5)
Håber, at det hjælper. Ellers skriver du bare igen.
Vh Troels