| Under the background of developing students' core competencies as the educational value orientation,the promulgation of "Biology Curriculum Standard for Ordinary Senior High Schools(2017 Edition)" indicates that the implementation of the curriculum pursues the principle of "less but better",content-focused concepts,streamlines the capacity,highlights the key points,and develops students' core competencies in biology in order to meet the above requirements,"what to teach" and "how to teach" are the problems that need to be solved urgently.Subject knowledge and subject core competencies are mutually reinforcing and mutually unified.Core knowledge is the backbone of subject knowledge and plays an important role in the entire knowledge structure,must be understood and mastered Knowledge is an important support for the development of students' core competencies.As an important component of teachers 'teaching work,teaching design is the teacher 's overall planning of teaching practice activities to promote the optimization of teaching effects.Whether the creative design of each lesson can directly affect the classroom teaching effect and curriculum philosophy Implementation.This research will through analysis of teaching content,core knowledge will be extracted,and classroom teaching design with core knowledge as the main line will be constructed to design a concise and refined teaching process.Promote the effective occurrence of student learning,improve student learning efficiency,and provide new ideas for the implementation and development of the core competencies of students' biological disciplines.This research uses literature research,text analysis,questionnaire survey and other methods for research.It is based on the "cultural literacy" education concept,the theory of recent development zone,cognitive structure teaching theory,and constructivist learning theory.Constructed from the analysis of the content of the cell metabolism module of "Biology Curriculum Standard for Ordinary Senior High Schools(2017 Edition)","Hainanprovince ordinary high school academic level biology subject qualification examination instructions in 2019" and "molecules and cells",The core knowledge framework system of the cell metabolism module,and in the form of a questionnaire survey on the importance of cell metabolic content knowledge points in high school biology teachers in some areas of Hainan.Examination of the reliability and validity of the questionnaire shows that the questionnaire has high reliability and good structural validity.After analysis,18 core knowledges were obtained.This article screens the "ATP of cell energy currency " and "principle and utilization of cell respiration " for teaching design.The teaching process is based on core knowledge teaching,summarizing and enhancing,constructing concepts,and immediate feedback.The design concept revolves around training student biology core competencies.Randomly selected two classes with the same learning level that I taught to conduct practical research.The results of practical research are as follows:(1)In the post-homework quiz of the "ATP of cell energy currency ",P = 0.001,the results of the two classes are significantly different,and the learning efficiency of the experimental class is significantly better than the control class.(2)"principle and utilization of cell respiration " after-school homework test,P = 0.016,the results of the two classes are generally significantly different,and the learning efficiency of the experimental class is better than the control class.Combining the above research,the following conclusions are drawn:(1)In high school biology teaching,the teaching design based on core knowledge teaching has certain feasibility and effectiveness in classroom teaching,which can provide the training for thecore competencies of high school students 'biology disciplines.Reference material.(2)Compared with conventional classrooms,teaching based on core knowledge can expand students 'effective learning and improve students' learning efficiency to a certain extent.Based on the above conclusions,in order to give full play to the research effect of this study,the author puts forward the following suggestions:(1)Teachers should pay attention to training and help students improve their independent learning ability.(2)Teachers should insist on the implementation of the cultivation of the core qualities of students' biological disciplines in the teaching design. |
