The shortest route

1. Divide the students into groups of 8. Tell them where you live. Tell them that you would like to visit each student in each group of 8. Ask each 8 to plan the best possible route for you to visit each of them and then get back to your home. Add that you will have to take public transport as you have no car or bike. (The routes may be from country to country or from one street to the next,