Original sentence: Although, on the other hand, it could be said to be better because it takes into account the ability of the student in the duration of the course, through coursework.BBC GCSE bitesize revision.CCEA (northern Irealand).GCSE aid.Letts Revise.Some subjects, such as science, can be split up into several different subjects: it is possible to be examined on science as a whole, with one or two GCSEs, or biology, chemistry and/or physics separately (where 3 GCSEs are awarded).There are different tiers for most examination — normally 'foundation' (formerly 'Basic') and 'higher', and for mathematics, 'intermediate' (which is betwwen the two)
Edited sentence: Some subjects, such as science, can be split up into several different subjects: it is possible to be examined on science as a whole, or biology, chemistry and/or physics separately.There are different tiers for most examination — normally 'foundation' (formerly 'Basic') and 'higher', and for mathematics, 'intermediate'