The advantages of relative evaluation method are: strong adaptability and wide application. No matter what the situation of this group is, it can be compared and the relative position of individuals in the group can be evaluated. Using the evaluation standard based on the evaluation object group can find individual differences, so that the evaluated individuals can be judged objectively, fairly and accurately, which is conducive to stimulating the competitive consciousness of the evaluation object. The disadvantage of the relative evaluation method is that the selected excellent people are not necessarily high-level and high-quality, and those who are not selected are not necessarily low-level and poor-quality, which tends to lower the objective standards. The evaluation results only reflect the relative position of the evaluation object in a certain range, not necessarily its actual level, which tends to ignore the completion of educational goals and easily lead to fierce and endless competition, thus dampening the enthusiasm of some people.

Interpretation sketch: "grass", as its name implies, represents the initial stage of expressing design or physical concepts, which is full of possibilities and uncertainties that can be further scrutinized, but it should be able to express the original intentions and concepts.