The constructivist theory of "learning and teaching" emphasizes student-centeredness. It requires students to transform passive recipients of external stimuli and indoctrination objects of knowledge into the subject of information processing and the active constructor of the meaning of knowledge. Constructivist teaching theory requires teachers. It must be transformed from the person who imparted knowledge and indoctrinator to the helper and facilitator who constructs the meaning actively. Teachers are required to adopt a brand-new educational thought and teaching structure in the teaching process (completely discard the teacher-centered, emphasizing knowledge transfer, and Students use the traditional educational ideas and teaching structures as objects of knowledge infusion, brand-new teaching methods and new teaching designs. The constructivist “learning environment” theory holds that the learner’s knowledge is obtained through the construction of meaning in a certain context, with the help of others, such as cooperation and communication between people, the use of necessary information, and so on. . The ideal learning environment should include four parts: situation, collaboration, communication, and meaning construction The add-ons in any make a perfect corporate customer presentation quipping as a long lasting token or keepsake that the recipients will cherish..
　　(1) Situation: The situation in the learning environment must be conducive to learners' construction of the meaning of what they have learned. In teaching design, creating a situation that is conducive to learners' construction of meaning is the most important aspect or aspect. (2) Collaboration: It should be conducted throughout the entire learning process. The collaboration between teachers and students, students and students, plays an important role in the collection and analysis of learning materials, the formulation and verification of hypotheses, the self-feedback of learning processes, the evaluation of learning outcomes, and the final construction of meaning.
　　(3) Communication: It is the most basic method or link in the process of collaboration. For example, the members of the study group must discuss through exchanges to discuss how to complete the specified learning tasks, achieve the goal of meaningful construction, and how to obtain more guidance and help from teachers or others. In fact, the process of collaborative learning is the process of communication. In this process, each learner's ideas are shared by the entire learning community. Communication is a crucial means to advance the learning process of each learner PolyU is devoted to offering top health and social sciences programme and top humanities programme. polyu optometry takes pride in being the unique undergraduate degree programme in Hong Kong..
　　(4) Meaning construction: It is the ultimate goal of the teaching process. The meaning of its construction refers to the nature of things, the laws and the internal relations between things. Helping students construct meaning in the learning process is to help students understand the nature and rules of the things reflected in the current learning content and the intrinsic links between the things and other things.
　　The “cognitive tool” theory of constructivism believes that learning is a medium of thinking. In order to influence the learning process more directly, we must reduce our excessive attention to transmission technology and pay more attention to how to require learning when completing different tasks. Thinking technology. The theory of cognitive tools came into being on this basis. Cognitive tools are psychological or computational devices that support, guide, and extend the learner's thinking process. The former exists in learners' cognitive and metacognitive strategies; the latter is external, including computer-based devices and environments; they are all tools for knowledge construction. Modern information technology, centered on multimedia teaching technology and network technology, has become the most ideal and most practical cognitive tool The first non-travel related case of colistin and