Develop Students' Chemistry Subject Based On Subject Understanding Teaching Research On Core Literacy

With the promulgation of a new round of curriculum standards,how to implement the development of core academic literacy of students into the classroom is undoubtedly a hot issue in education research.The development of core literacy of academic disciplines is essentially a fundamental transformation of the view of subject knowledge from fact-based to understanding disciplinary understanding is an important foundation for making the core of academic disciplines "landed" in classroom teaching.The literature analysis method is used to define and summarize the concept connotation and internal connection of "core literacy","discipline core literacy" and "discipline understanding".Taking the "primary battery" teaching of high school chemistry as the research object,the content requirements of primary battery-related knowledge and the level of subject core literacy development are systematically combed in the curriculum standards,and the angles and focuses of developing primary battery knowledge to develop students' core chemistry literacy.Reveal the discipline nature of galvanic cell knowledge from the perspective of disciplinary understanding,and establish the cognitive nature of galvanic cell knowledge system in three cognitive dimensions:reaction nature,model construction,and working principle.Based on this,an observation scale is designed to analyze and evaluate the classroom teaching status of the optional 4 "primary battery" section of the textbook of the People's Education Edition and the microteaching practice of normal students,and explore the subject understanding knowledge transmitted by teachers in the primary battery teaching classroom depth.Furthermore,through the analysis of typical cases of in-service teachers and pre-service teachers,we summarize the common problems in the creation of current battery teaching situations,content depth and activity settings.Develop two teaching design cases based on the perspective of subject understanding:"Chemical Energy and Electrical Energy"and "Primary Cell Principle" to provide teaching suggestions for teachers' "primary cell"classroom teaching.