Educational evaluation is defined as the measurement and appraisal of a comprehensive range of educational objectives, defined in terms of student behaviour, through the use of a variety of techniques. Student evaluation helps the teacher in adapting his instruction to the students' needs and in giving proper guidance. This note describes the qualities that are required of any evaluative technique. In addition, the advantages and limitations of various evaluative techniques are discussed. It also deals in brief with the various features of grading systems.