I am a mature student studying for a single AQA Science A GCSE at night school. I am doing this alongside my 2nd year degree, during the day; so I can apply for teaching training next year. We have the option of entering for the higher tier A*-D grades or the Foundation Tier C-F. Is it better to enter for the higher tier or the lower tier? I have been told by a fellow student that it is better to enter for the higher tier if I need a C grade because the percentage of answers I would need to be correct is lower overall than the foundation paper. Is this correct?