What are the methods of expression of classroom teaching objectives?

Specification of classroom teaching objectives should contain "four elements": (1) the subject of the behavior must be students rather than teachers; (2) the behavior of the verb must be measurable, evaluable, specific and clear, otherwise it will not be able to evaluate; (3) the behavior of the conditions refers to the impact of students to produce a learning outcome of the specific limitations or scope, for evaluation Provide a basis for reference; (4) the degree of performance refers to the minimum level of performance that students are expected to achieve after learning, used to assess the degree of learning performance or learning outcomes achieved. Tang Maolong's group of essay design teaching objectives as an example of teaching objectives, that the scientific and standardized expression of teaching objectives need to do the following "four points": (1) the main body of the act is the students, the statement is the results of student learning, that is, through teaching, students will do or say what to write, rather than the expression of the teacher to do what to do. . (2) The behavioral verbs used (such as say, describe, modify, write, etc.) are specific and clear, and can directly reflect the student's activities, so that the teaching objectives can be observed and tested, overcoming the ambiguity of the traditional method of expressing the teaching objectives. (3) Behavioral conditions are expressed clearly and standardized. For example, "according to the appearance and behavioral characteristics of small animals", "according to the suggestions of the teacher and classmates", "through the character appearance, language, action and psychological description", etc., these expressions are both These expressions not only reflect the process and method in the teaching objectives, but also combine the requirements of the objectives of the academic period, providing a reference basis for evaluation. (4) Finally, the statement of teaching objectives reflects the hierarchy of learning outcomes. For example