Research On Teaching Of Elemental Compounds Based On "Macroscopic Identification And Microscopic Analysis"

In 2016,China promulgated "the Development of Core Literacy of Chinese students".At present,the research on core literacy has become a "upsurge" in the field of education.Chemistry core accomplishment is the concrete embodiment of students' comprehensive quality.In the five dimensions of chemistry core accomplishment,"Macro-identification and micro-analysis",which is located in the first dimension,is an important part and the most basic content in the core accomplishment of high school chemistry.It is to understand the composition,structure and nature of matter from the level of micro-particles.The transformation of energy and their relationship is a process of cultivation of literacy,an important concept of chemistry and a unique thought for solving chemical problems.Dimension field.The teaching of element compound under macro-identification and micro-analysis emphasizes the creative use of teaching materials,the creation of learning situations,and the use of inquiry-based teaching models.This study is based on the teaching of element compounds,combining with the literature about "macro-micro-combination" literacy research,based on curriculum standards and teaching materials to analyze the macro-micro knowledge structure contained in the element compounds.Then,with the help of questionnaire survey,we can understand the present situation of students' "macro-micro-integration" literacy after studying in the third year of junior high school,and put forward the teaching strategy and teaching design process of cultivating macro-micro-integration literacy in chemistry class.Study on Teaching practice based on case study.Finally,through the combination of element compound unit test and student interview,the results of statistical experiments are analyzed and the following conclusions are drawn: it is necessary to carry out the teaching of "macro-identification and micro-analysis",which is beneficial to the teaching process of teachers.At the same time,the teaching strategy of cultivating "macro-micro-combination" accomplishment in the knowledge teaching of element compound is effective.