2014 with Geogebra

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Happy Christmas with Geogebra and music

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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

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.

 

Voronoi by surfaces

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PIXEL AND PICTURE

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Click here to download the applet : http://dmentrard.free.fr/GEOGEBRA/Maths/fonctionalg/Pixel.ggb

Design by rotating a function

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File can be downloaded here: http://dmentrard.free.fr/GEOGEBRA/index.htm

Where is Charly?

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 or an html5 version below

 

Using a magnifying glass in picture art

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You must subscribe to this blog to download the file.

 

THE MAGNIFYING GLASS

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You must subscribe to this blog to download the file.

 

WEBSITE UPDATE

http://dmentrard.free.fr/GEOGEBRA/index.htm

 

Bases et solides dans l'espace

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You must subscribe to the blog to download the file.

 

Distance on perimeter

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Click on here to download the ggb file : here

Evenement probables avec 2 dés

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Click on here to download this ggb file: here

Pythagore by water

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Click here to download the ggb file : here("save file as")

Earth with Geogebra

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Soon downloadable here

Area of circle

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

Shooting basket (Investigation on parabola)

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

The Jazz Band

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

 

 

Investigation on pyramid volume

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

Investigation on cone volume

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

Investigation on ball volume

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

Challenge of the week end: Mathematical puzzle

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Click here to dowload the gg file; here

Challenge: Guess a number

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Click right here to download the ggb file: here  (save  file as)

 

 

Challenge: a small square for a great cube

Draw in a   square a single patern which by folding creates the greatest cube

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Click here for download the ggb file: here

Volume of a 3D cuve

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Click  here to download the ggb file : here

ELLIPSE IN THE BOX

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Click here to download the 4.2 ggb file: here

Investigation sur les volumes

Pour boire  un coup, pas de jaloux

Solides de PLATON

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Click here to download the 3.2 ggb file: here

BOX PLOT

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Click here to download the 4.2  ggb file: here

Geogebra and association items (like Hot potatoes)

 

Soon available on this blog not in Geogebratube

The Volume box

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Click here to download the  3.2 ggb file: here

Geometric fish for primary school

http://www.geogebratube.org/material/show/id/39742

A 3D bicycle with Geogebra

http://www.geogebratube.org/material/show/id/39092

Proof without words

Proof without words???

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This ggb file can be download on this link: http://dmentrard.free.fr/GEOGEBRA/index.htm



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.

Filling various geometric forms

An useful file in Geogebra 4  for visualizing the speed of filling of various geometric containers

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To obtain this file, you must subscribe to this blog

Rythmic box ( playsound with Geogebra)

Adjust the sound of your card and dance with Geogebra

 

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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)

Waterpipes challenge

Solve a connection problem and graph

Interactives fractions

Input your answer in the box( script in html)

                       

                                                             Click on the picture to launch the ggb file

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.

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.