The father has recently set up a Facebook group to provide free GCSE and A-level resources, exam crib sheets, and easy-to-follow video tutorials.

The Biology Department rightly called the new tutorial "unconventional" when they unveiled the plans for it last Spring. Not only is it non-credit, it's not even required for honors.

Students need to get around 55 per cent of the answers right in their Biology A-level in order to secure an A grade, grade boundaries for one exam board suggest.