Understanding Evaluation.

It is said summative is not formative, but we need the summative evaluation. Formative evaluation gives an opinion of the work of the students in natural language, using categories that explain why the work is useful, correct, aceptable, incomplete or wrong (or any other descriptions with which can be qualified the work of students, as can be a numerical scale). Formative evaluation combines with summative evaluation, is usual for a matrix for evaluation to use numerical scales. Beside this, summative evaluation allows to computerize the information of qualification of the students, so we need the summative evaluation too.