Teacher training students, split between a noun noun Noun Countable and the counted noun Uncountable Noun not counted in exercise 1 (along with examination and to answer)
Teacher training students to distinguish between nouns. Countable nouns Countable Noun and Uncountable Nouns Uncountable Noun exercises in the first (and the guides).
The teacher students were split between the noun countable nouns and noun Countable Noun counts not Uncountable Noun in exercises that 1 (and check and solution).