vendredi 27 décembre 2013

2014 with Geogebra

http://www.geogebratube.org/material/show/id/65729
Click on the picture to launch the applet
 

 

dimanche 15 décembre 2013

Happy Christmas with Geogebra and music

http://ggbtu.be/mwPNyJaTZ
Click on the picture to launch  the applet
 
Great! this way to access a ggb file in private mode inside  GeogebraTube
 

Data Times: Private files on GeogebraTube

You can now have private order of files on the server on Geogebratube.
This is a test:Click on the picture to follow the link
http://www.geogebratube.org/student/mVpNg1Dv0
This applet does not appear in the public database of  Geogebratube and does not appear  also in the research base server.That requires that the designer provides and disseminates link of the file.:=)
 
The material does not appear either in the profile of the contributor when there is a padlock.
 

samedi 14 décembre 2013

Voronoi by surfaces

http://dmentrard.free.fr/GEOGEBRA/Maths/fonctionalg/VOronoiMD.html
Click on the picture to launch the applet

mardi 10 décembre 2013

PIXEL AND PICTURE

http://dmentrard.free.fr/GEOGEBRA/Maths/fonctionalg/PixelMD.html
Click on the picture to launch the applet

mercredi 4 décembre 2013

Design by rotating a function

http://dmentrard.free.fr/GEOGEBRA/Maths/fonctionalg/foncrotatMD.html
Click oon the picture to launch the applet
File can be downloaded here: http://dmentrard.free.fr/GEOGEBRA/index.htm

samedi 30 novembre 2013

Where is Charly?

http://dmentrard.free.fr/GEOGEBRA/Maths/fonctionalg/CharlyMD.html
Click on the picture to launch the applet
 or an html5 version below
http://dmentrard.free.fr/GEOGEBRA/Maths/fonctionalg/charly.html
 

lundi 25 novembre 2013

Using a magnifying glass in picture art

http://dmentrard.free.fr/GEOGEBRA/Maths/fonctionalg/NocecanaMD.html
Click on the picture to launch the applet
You must subscribe to this blog to download the file.
 


vendredi 22 novembre 2013

THE MAGNIFYING GLASS

http://dmentrard.free.fr/GEOGEBRA/Maths/fonctionalg/Ferme2MD.html
Click on the picture to launch the applet
You must subscribe to this blog to download the file.
 

mercredi 20 novembre 2013

jeudi 14 novembre 2013

Distance on perimeter

http://dmentrard.free.fr/GEOGEBRA/Maths/Nouveautes/4.25/ContourMD.html
Click on the picture to launch the applet
Click on here to download the ggb file : here

Evenement probables avec 2 dés

http://dmentrard.free.fr/GEOGEBRA/Maths/Nouveautes/4.25/2dicesMD.html
Click on the picture to launch the aopplet
Click on here to download this ggb file: here

mardi 5 novembre 2013

Pythagore by water

http://dmentrard.free.fr/GEOGEBRA/Maths/Nouveautes/4.25/CoulpythagMD.html
Click on the picture to launch the applet
Click here to download the ggb file : here("save file as")

dimanche 3 novembre 2013

Earth with Geogebra

http://dmentrard.free.fr/GEOGEBRA/Maths/Nouveautes/4.25/EathMD.html
Click on the picture to launch the applet
Soon downloadable here

mercredi 23 octobre 2013

Area of circle

Click on the picture to launch the applet
Click here to download the ggb file : here  (click right and"save file as")

Shooting basket (Investigation on parabola)

Click on the picture to launch the applet
Click here to download the ggb file only (not the sound file) : here (click right and"save file as")

mardi 22 octobre 2013

The Jazz Band

Click on the picture to launch the applet
Click here to download the ggb file only (not the sound file) : here (click right and"save file as")
 
 

Investigation on pyramid volume

Click on the picture to launch the applet
Click here to download the ggb file :here (click right and"save file as")

lundi 21 octobre 2013

Investigation on cone volume

Click on the picture to launch the applet
Click here to download the ggb file : here (click right and"save file as")

Investigation on ball volume

Click on the picture to launch the applet
Click here to download the ggb file : here (click right and"save file as")

samedi 19 octobre 2013

Challenge of the week end: Mathematical puzzle

Click on the picture to launch the applet
Click here to dowload the gg file; here

dimanche 13 octobre 2013

Challenge: Guess a number

Click on the picture to launch the applet
Click right here to download the ggb file: here  (save  file as)
 
 

lundi 7 octobre 2013

Challenge: a small square for a great cube

Draw in a   square a single patern which by folding creates the greatest cube
Click on the picture to launch the applet
Click here for download the ggb file: here

dimanche 6 octobre 2013

Volume of a 3D cuve

Click on the picture to launch the applet
Click  here to download the ggb file : here


dimanche 29 septembre 2013

ELLIPSE IN THE BOX


 Click on the picture to launch the applet
Click here to download the 4.2 ggb file: here

samedi 28 septembre 2013

samedi 14 septembre 2013

Solides de PLATON

Click on the picture to launch the applet
Click here to download the 3.2 ggb file: here

BOX PLOT

Click on the picture to launch the applet
Click here to download the 4.2  ggb file: here

jeudi 4 juillet 2013

jeudi 27 juin 2013

The Volume box

Click on the picture to launch the applet
Click here to download the  3.2 ggb file: here

samedi 2 mars 2013

Proof without words

Proof without words???
Click on the picture to launch the file
 
 
This ggb file can be download on this link: http://dmentrard.free.fr/GEOGEBRA/index.htm


jeudi 28 février 2013

Compositon colorée (investigation collective)

Avec ce fichier, les élèves doivent deviner le nombre de boules de chaque couleur contenu dans cette urne? Bien sûr on peut changer le nombre de chacune en cachette. Avec un TBI projetant ce fichier, chaque groupe peut venir simuler ses essais., devant la classe et expliquer sa démarche pour trouver le décompte estimé par leurs calculs. Ensuite la discussion peut s'engager sur le nombre de tirages possibles pour la fiabilité des résultats. (D'ailleurs un point intéressant: si le nombre total  de boules est de 40, la majorité des groupes d'élèves proposent 40 tirages, pour 50 boules , 50 tirages, etc....... )
Cliquez sur l'image pour lancer le fichier 
A essayer dans votre classe avec un système de retroprojection.
 
 
With this file, students must guess the number of balls of each color contained in that box? Of course you can change the number of each secretly. With TBI for projecting this file, each group can simulate future essays., To the class and explain his approach to find the count estimated by calculations. Then the discussion can embark on the number of  possible tests reliability of the results. (Besides an interesting point: if the total number of balls is 40, the majority of student groups offering 40 tests for 50 balls, 50 tests, etc .......)
Try in your class with a system retroprojection.

mercredi 27 février 2013

Filling various geometric forms

An useful file in Geogebra 4  for visualizing the speed of filling of various geometric containers
Click on the picture to launch the file
 
 
To obtain this file, you must subscribe to this blog

mardi 26 février 2013

Rythmic box ( playsound with Geogebra)

Adjust the sound of your card and dance with Geogebra
 
Click on the picture to launch the file
 
Soon available in Html5 if it is possible, for the moment tis file can be doownload here:  http://dmentrard.free.fr/GEOGEBRA/

Introduction to equations

You must answer in the boxes and then request the correction.
Exercise is automatically corrected with "B" correct or "F" wrong.
Press next to a new series.
                                    
                                         Click on the picture to launch the html file (ggb file inside)
 
 
This file can be download on http://dmentrard.free.fr/GEOGEBRA/    ( scripts in javascriopt on html)

samedi 23 février 2013

Waterpipes challenge

Solve a connection problem and graph

mercredi 20 février 2013

Interactives fractions

Input your answer in the box( script in html)
                       
                                                             Click on the picture to launch the ggb file

mardi 19 février 2013

Vertices, strings and diagonales

 
Comment trouver le nombre de ficelles utilisables pour suivre les côtés et les diagonales d'un polygone régulier? (How to find the number of strings used to monitor the sides and diagonals of a regular polygon?)
                            
                                     Click on the picture to launch the ggb file.

lundi 18 février 2013

Dice Challenge

Sum of two opposite faces  of  a dice is 7. One  of this patterns is false. Which one?
You can move, open or close all the patterns in this file
                        
                       Click on the picture to launch the ggb file.