At first, we make national groups to build presentations of the countries, regions , towns to introduce each country At second the students will create and vote for the logo of their project At third the students will describe themselves so that their partners discover them At fourth Thanks to a game based on the previous description and the use of the forum the students will build international working teams At fifth each international team will investigate the problem of the different means of transport , each team will collaborate to : collect datas ( colour, power, fuel ,cost, time…) about different means of transport ( cars, bikes, horse , kayak…) by making forms and filling them with the answers collected in their classes to build a presentation not only of these datas but also of quantities they can calculate from them ( such as energy , average speed , cost per km, calories per kg, cost per km…) the different teachers involved in the project will provide different ways