THE world’s largest lesson takes place on Monday with 1,547 teachers in 104 countries taking part in an online English class. More than 23,000 students will simultaneously learn about landmines and global issues to celebrate the European Year of Languages. Organiser English-to-go, an English language materials supplier, hopes the event will be verified by the Guiness Book of Records. The address is www.english-to-go.comlargest.