What are the professional benefits to teachers in your department?

How does the involvement of teachers within your department in marking and moderating contribute professionally to their work as teachers?

It provides a remarkable insight into your students' behaviour when they are taking an examination.  As a teacher you don't actually know what your students do in an exam - you think you do because you mark mock exams but you don't know how they behave once they are under that additional pressure.  In marking a breadth of exam papers teachers soon recognised the most common errors made: how candidates misinterpret questions, provide information that does not gain them additional marks; make simple mistakes in spelling, punctuation and grammar - these insights enable the teachers to guide their own students against making those mistakes.  Across my department we have introduced specific lessons on exam technique, gained from our collective experiences from marking, and we have seen improvement in our students' marks.