And can you learn how to write if there is no-one physically around to help you? Here are five tips, from Australian teacher Cara Dinneen, on how to improve your writing by yourself.

In this exercise, Australian teacher Cara Dinneen demonstrates techniques for writing a cover letter.

It will be called Duolingo ABC, and the company told Wired UK that it will initially focus on teaching kids to read and write in their native tongue.