July 7, activity of "Visiting World Expo in Summer" by students from Primary and Secondary Schools of Shanghai launched officially, and it is co-hosted by Shanghai Ministry of Education and the Expo Bureau. During the summer activity, nearly 50000 students will visit the Exhibition Center of Expo Shanghai. The Exhibition Center will reserve the period from 1 pm to 4 pm from Monday to Friday as Student session. Now it's ensured that there are 20 guides in the Exhibition Center everyday, providing different guiding services to different visitors. In order to support this activity, the "My 2010, World Expo Theme Essay Contest" was started at the same time, which is co-hosted by Shanghai Students Quality Education Office, Shanghai World Expo Culture Communication Co., Ltd, Noon News Press and Shanghai Advertising Co., Ltd.