The essence of ecology is life and its diversity, integrity, openness and coexistence. When one contemplates and analyzes classroom from the perspective of ecology, classroom should contain open-ended and multiple goals instead of a single and pre-set goal; classroom is more flexible, allowing great diversity instead of being narrow-minded, identical and in sole possession. Classroom is characterized by equality, harmony and vigor, instead of being under hegemony, control and being mind-suffocated; it is a place where students as principal parts exchange their minds instead of being a fearful "modern spiritual hell"; classroom is a stage where the vigor of students is stimulated, their nature is started and their colorful self is presented, instead of a knowledge-manufacturing place lacking in variety.