The term feedback is often
used to describe all kinds of
comments made after the
fact, including advice, praise,
and evaluation. But none of
these are feedback, strictly
speaking.
Gifts and puzzles is a good
activity when providing
feedbacks, gifts could be a
compliment or something that
a student did well and puzzle
could be the areas of
opportunity, something that
needs to be improved but
presented in a kind and
constructive way.