he also noted that while such assessments may be graded and used as part of the judging and classificatory function it is much more effective if it is separated from the grading process and used primarily as an aid to teaching p assessment is central to effective learning therefore because even if learners start in roughly the same place with respect to a particular piece of learning they will very quickly be at different places due to the differences in what they have learned in other words assessment functions as the bridge between teaching and learning