‘Trousers’ or ‘pants’? ‘Lift’ or ‘elevator’? ‘Colour’ or ‘color’? ‘Theatre’ or ‘theater’? Which lexical item do you use? Which form of spelling do you opt for? Do you teach ‘American’ or ‘British’ English? Or both? How do you decide what to teach? Does it matter? Well, according to some recent research, it does matter, and...Read More