Exam board Edexcel has launched an investigation into how part of an A-level maths paper was leaked online. Blacked-out images of two questions were shared on social media on Thursday afternoon.

Sign up for our free Voices newsletter for expert opinion and columns Sign up for our free weekly Voices newsletter for expert opinion and columns Students scoring ...

Maths questions often start with the command words 'calculate' or 'determine'. They will then have a blank space for you to show your working. It is important that you show your working; don't just ...