One lesson and one practice, enhanced version of fifth grade mathematics, 120 hours to complete. On August 22nd, 20 15, volume 1, a mathematics teaching aid book familiar to Shanghai students, was published in the UK, and the second volume is planned to be published in the UK at the end of August 20th15. 2065438+In June 2008, East China Normal University Press announced that it would once again join hands with Harper Collins Publishing Group to export the same series of teaching AIDS focusing on training mental arithmetic ability to Britain.