In today's international society,in order to better popularize science education and enable students to master the knowledge to the fullest extent within a limited time,learning progress has rapidly become a research hotspot for nearly a decade.In 2011,the new "K-12 Science Education Framework: Practice,Interdisciplinary Concepts and Core Concepts" issued by the National Research Council(NRC)requires that planning and design courses should conform to the cognitive rules of students and make the core concepts deeply embedded in students.Inner heart.The core concepts of the subject are presented to the students in an advanced way,and then the scientific literacy of the students is formed.The core concept refers to the scientific concept that has been tested in the backbone of the subject structure.It integrates several key concept principles and theories to promote students' understanding of subject knowledge and self-awareness.In this study,the understanding of the core concept is taken as the entry point,and the "molecular composition and structure of cells" is taken as the research object,and the advanced learning process of the core concept "molecular composition and structure of cells" is constructed.To cultivate students' scientific literacy and promote the development of the curriculum.According to the requirements of the knowledge points involved in the molecular composition and structure of cells in the junior high school biology curriculum standards and the college entrance examination syllabus,and with reference to the Pedagogical Edition junior high school biology textbook,the core concept of "molecular composition and structure of cells" was made.In summary,they are "sugars and lipids","proteins","elements and inorganics","nucleic acids","cytoplasm,cell membranes and nuclei".In the construction of the advanced learning of the core concept,through the analysis of the human teaching version of the biological textbooks,the curriculum standards of the middle and high school curriculum and the current existing data,combined with the recommendations of the frontline teachers,the core concept of "the molecular composition and structure of cells" The learning is advanced to make assumptions.Through the questionnaire survey,the core conceptsin “Cell Molecular Composition and Structure” are at the advanced level of learning among ordinary high school students,and some teaching suggestions are proposed to promote teachers' teaching and student learning.Research is an advanced learning study based on the core concepts.It can be applied to teaching practice to help teachers understand the situation and further clarify the learning objectives,thus contributing to the teaching of teachers and improving students' Cognitive ability and achievement.Comprehensive empirical and theoretical analysis: teachers should focus on the core concepts in teaching design and textbook compilation;the important basis for teachers to teach is to learn effectively;in the actual teaching process,the core concepts are closely related to the advanced learning. |