At the beginning, students will be involved in some ice-break activities to know each other and then will work together to discover Maths in their world, by pictures, contests, drawings. Students will measure nature in particular the Earth circumference and use Maths to work on the results. Starting from their personal experience and local traditions, students will exchange recipes, will use proportions to cook some foreign dishes in their families, will prepare statistics about food and nutrition and will use them to discuss and reflect about food and inequalities in their countries and all over the world. Students will record and watch video-lessons.