An interesting reading I came across while researching for my case study - OTJ is an important aspect to formal data collection. Knowing the learner and what they are capable of producing in a consistent manner outside of a 'one of assessment task'.
'However, it is still important to keep in mind that all literacy assessment strategies highlight the importance of teacher judgement as being fundamental to efficient and effective literacy assessment and reporting practices in the classroom. Professionally informed teachers who are articulate, knowledgeable and reflective practitioners are the change agents of the future.'
Literacy: Helping Children Contruct Meaning (3rd ed., p. 559), by J. D. Cooper, 1997, Boston: Houghton Mifflin Company. Copyright © 1997 by Houghton Mifflin Company. From