Result evaluation, process evaluation, value-added evaluation and comprehensive evaluation.

Outcome evaluation is an evaluation at the end of a time unit, which provides evidence of students' academic achievements or educational effects. It is a formal evaluation with high interest, and its design and implementation are strict.

Process evaluation occurs in the middle part of a time unit and can be performed many times during this time period. Process evaluation can be formal or informal, for example, classroom tests, daily homework, etc.

Value-added evaluation is an evaluation of the progress and efforts of students' learning, teachers' teaching, running schools and government work. Value-added evaluation originates from the fair evaluation of school effectiveness, and is divided into two categories according to the different reference objects measured by progress: the first category is characterized by examining the relative progress and evaluating the relative progress of a school student in one aspect or in all aspects compared with other school students with similar starting points in the same sample.

The basic feature of comprehensive evaluation is the diversity of evaluation contents, means and subjects. The main types are student comprehensive quality evaluation, school comprehensive evaluation and local government education performance supervision.

The "four evaluations" bear different functions in the evaluation practice, but the relationship between them is not juxtaposed. According to different evaluation purposes of performance, diagnosis and selection, different combinations can be adopted.