ABSTRACT
This chapter tries to help demystify, for teachers, the data that is available and used by schools. It looks at data used on two levels: in the classroom by the class teacher and in the whole school. The person in charge of data in the school typically receives a data generator and downloads information into the school management information system (MIS). Schools must always compare the raw data with the value-added data and look at whether attainment and progress are improving or declining. It is only from a thorough understanding of the data that schools can begin to use it in their forward planning and to support the process of teaching and learning in their schools. When evaluate pupil performance, whether at statutory assessment points or as part of the internal evaluation process, one must consider the following: When evaluate performance one need to determine whether absolute performance or changes in performance are statistically significant.
