lundi 10 septembre 2012

Make a 3D repere with Geogebra

                                      
                                        Click on the picture to launch the video

dimanche 9 septembre 2012

Proof without word

                                                       
                                                      Click on the picture to launch
                                                   Download ggb file: here

Bridges wired and parabolas

                                                         
                                                    Click on the picture to launch
                                                 Download ggb file : here