The teaching department of Paris Observatory and the IMCCE (Institut de Mécanique Céleste et de Calcul des Ephemerides) provide several tools as for students at different levels as for general public concerning the Planetary Science. We provide: -cursus for general public, for teachers in high schools and for students before PhD; -cursus through Internet thanks to specific web sites and e-mails between students and teachers; -CD Rom for high schools, for teachers and for general public for the knowledge of the Solar system -web sites answering most of the questions of general public. For specific events, such as eclipses of the Sun or the Moon, the transit of Venus in front of the Sun, arrival of a space probe near a planet, we organize events or exhibits. Some of these tools are to be translated in several european languages.