nemendum

In a sentence

• Kennarinn útskýrði verkefnið fyrir nemendum í bekknum.

  The teacher explained the assignment to the students in the class.

  The word 'nemendum' is the dative plural form of 'nemandi' (student) and is used here as the indirect object receiving the action of the verb 'útskýrði'.

• Reglurnar voru kynntar nemendum áður en kennslan hófst.

  The rules were introduced to the students before the lesson began.

  In this sentence, 'nemendum' again appears in its dative plural form, serving as the entity to whom the 'rules' (subject) were 'introduced'.

• Kennarar eiga að vera fyrirmyndir fyrir nemendum sínum.

  Teachers should be role models to their students.

  Here, 'nemendum' is used in the dative plural to indicate the audience or beneficiaries of the 'teachers' being 'role models'.