Research On The Core Literacy Based On "Change Concept And Balance Thought"

"Change concept and balance idea" is an indispensable part of the core literacy knowledge system of chemistry.The learning content of the primary battery is the foundation for students to build a complete electrochemical knowledge system.However,because this part of the content is relatively abstract,the student's learning process exists certain It is difficult,so how to develop the core literacy of students' chemistry subject in the teaching of primary batteries is a problem that deserves attention now.This article is based on this research.In the early stage of the study,the research ideas and methods were determined by consulting many documents and investigating the current status of the study;the interview method was used to fully understand the current teaching environment and the student's learning situation in the current teaching environment,combing the common problems in the original battery teaching,and bringing the teaching design closer The teaching status is more targeted;then,in order to achieve the purpose of letting students not only master the principle of galvanic cell reaction,but also deepen their chemistry discipline literacy,the corresponding teaching cases are designed in a targeted manner;and will change in the subsequent teaching activities Concepts and balance ideas are integrated into it.Two parallel classes are selected in the internship school for teaching and implementation.After differential teaching,the students' theoretical mastery is tested.The analysis of the test results by the data analysis software SPSS 20.0 shows that the average of the experimental class and the control class The scores are 81.03 and 76.64 respectively.After independent sample T test,it can be seen that Sig.(two-sided)<0.05,with significant differences,which proves that the teaching of primary batteries based on the literacy of "change concept and balance thought" is compared with traditional teaching methods.Not only can it strengthen the students' ability to absorb electrochemical knowledge and significantly improve their problem-solving ability,but it can also fully improve their core chemistry literacy level,which has certain guiding significance for the current middle school chemistry teaching.