I decided to not note the results the usual way (marks from 1 to 5). Instead I took a system of 5 smilies to evaluate the students.
You can download them in various formats and a sample document too.
It is easy to find fault, if one has that disposition. There was once a man
who, not being able to find any other fault with his coal, complained that
there were too many prehistoric toads in it. Mark Twain, "Pudd'nhead Wilson's Calendar"