Read the text and answer the question.
Teachers assessing students
Assessment of performance can be explicit when we say That was really good, or implicit when, during a language drill for example, we pass on to the next student without making any comment or correction (there is always the danger, however, that the student may misconstrue our silence as something else).
Because the assessment we give is either largely positive or somewhat negative students are likely to receive it in terms of praise or criticism. Indeed, one of our roles is to encourage students by praising them for work that is well done, just as it is one of our duties to say when things have not been successful. Yet the value of this praise and blame is not quite as clear-cut as such a bald statement might imply.
(HARMER, J. The practice of Language Learning Teaching. 7Th ed. London: Longman, 2005.)
The word Yet introduces the idea of
