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Part of the old and new in the preparation of genetic material contrast ideas

Since the implementation of the new high school curriculum, new textbooks became the teachers discussed the use of a hot, compared with previous materials, new curriculum materials in the way of knowledge representation and programming, great changes have taken place, especially the genetic part. After a first-hand teaching practice, the discovery of new materials in this part of the programming is more focused on the student's High school biology curriculum is the genetic part of the It includes three aspects. First, the cellular basis of genetic, that meiosis and fertilization; Second, the molecular basis of heredity, that is the primary genetic material DNA,[link widoczny dla zalogowanych], DNA molecular structure and replication, gene expression; three basic laws of inheritance, that is Gene Isolation law, law and the free combination of genetic sex-linked genetic. Chinese papers League finishing. Genetic part of the old layout on the use of PEP is: the cellular basis of genetic - the molecular basis of heredity - the basic law of inheritance. First, students in junior high school, taking into account the genetics and variation of the general concept has been understood that this part of the re-introduction did not elaborate on this part, but the first set with three ask What is in vivo and mutation of genetic material play a decisive role, Prior to this part of the learning, the development of genetics and its significance have a general understanding. and then teaching in middle school and high school biology class biology (compulsory) part of the textbook chapter on the basis of cells, from the molecular level further elaborated in detail the role of the genetic basis and principles of the material. DNA is the genetic material by telling experimental evidence, DNA molecular structure and replication, and gene expression features, etc., so that students chromosomes, DNA and genes related to the structure and functional knowledge,[link widoczny dla zalogowanych], and relations between them have a more in-depth, comprehensive understanding and awareness. Finally, on the basis described in the previous . knowledge of the three units of study to do the groundwork and reserves. This arrangement is beneficial to the starting point of imparting knowledge and giving. the context of the new curriculum emphasizes modern teaching concept of simply imparting knowledge, but more emphasis on arranged to do a lot of adjustments. new content in this part of PEP is to follow the basic way of human understanding of gene expansion. teaching the basic order of content arrangement of the historical process of scientific development in accordance to schedule,[link widoczny dla zalogowanych], the true to the prevailing situation? materials used successfully in the reflect the individual level, cellular level, molecular level of genetics knowledge of the internal logic links (to reach the understanding of knowledge); guide the students to ask questions, analyze and solve problems, as scientists attempt to explain and reason do. This genetic knowledge students process, as witnessed over a hundred years, scientists pursued the exploration process will be subject to scientific methods, scientific approach and scientific spirit, and many other enlightening. is particularly important, each chapter revolves around a core of learning issues, learning problem-solving process is the process, which for students to stimulate interest in learning, changing learning styles, improve the ability to analyze and solve problems,[link widoczny dla zalogowanych], are very important. This presentation more attention to the links with the life experience,[link widoczny dla zalogowanych], the creation of problem situation, the driver knowledge construction?; more to promote the achievement of three-dimensional teaching objectives. through comparative analysis of the above, we clearly understand the new materials to make such adjustments to pay more attention to the issue-driven teaching, is no longer superior, boring pile of knowledge, and stress methodology, while focusing on students self-learning and cooperative learning.