The Research Of Chemical Previewing Activity In Junior Middle Shool Based On Chemical Core Literacy

In the 21 st century,Chinese talents should have positive initiative,high moral quality,solid foundation,practical innovation,lifelong learning ability,the ability to cooperate and coordinate with others,scientific spirit and social responsibility.Thus the experts put forward the core quality of chemistry and formulated its contents as follows: scientific spirit and social responsibility,macroscopic identification and Microanalysis,changing concept and strike the balance between them,evidence reasoning and model understanding,and scientific exploration and innovation consciousness.The implementation of the chemical reform advocated the active participation and diligence of students,developing their ability to gather and process information,acquire new knowledge,analyse and solve problems,and communicate and cooperate.Previewing activities are really one of the teaching activities to train students 'abilities,which can train them to think independently and acquire new knowledge independently.Students have good prelearning habits,learning will be from passive to active,in the process of learning can form the necessary quality.Under these requirements,this study intends to develop a variety of preparatory activities to promote students to form the core of chemistry.This thesis first combs the relevant literature at home and abroad,and on the basis of the existing research,the author constructs the design way and the guiding strategy of junior middle school chemistry previewing activity based on the theory of constructivism learning,Multi-Intelligence theory and Kagan cooperative learning theory.This study explores and innovates chemical previewing activities in middle schools,organically integrates previewing and living,allows chemical knowledge to be fed back into life,and attempts to combine chemical previewing activities with other disciplines,such as making microscopic knowledge of chemistry presented in fine arts.The aim is to train students to study chemistry mood,improve their academic achievement and form their core chemistry literacy through the design of previewing activities.In order to rely on the data,this study first through the zhanjiang second middle school class three 1028 students pre-test survey,through quantitative analysis,to investigate the status of pre-study activities,finally selected two key classes for experimental comparison.In addition to literature survey,the research also uses experimental research,case analysis,observation and action research.This thesis is divided into two parts.First of all,this research uses the questionnaire survey and the interview method to carry out the preliminary survey to the current junior middle school students 'preparatory activities,through the survey to understand the status of the preparatory activities,teachers to the preparatory activities and students' expectations of chemical preparatory activities.Then,under the guidance of theory,this study constructs six strategies for previewing activities,such as examining the history of chemistry,watching microlectures,doing home experiments,drawing a mental map,drawing micrographs and a multi-solution,and then applies these strategies to students 'previewing activities to test and improve,and summarizes the principles of previewing activities.The thesis can be summarized as follows: 1.The history of the humanities of chemistry edifies students 'emotions;2.Painting makes chemistry fun and liberating;3.Family experiments make chemistry innovative and exercise scientific thinking;4.Watch video preview activities to enable students to build various chemical models;5.A multi-solution,mind map exercise student thinking,so that thinking more flexible;6.Review activity feedback provides direction for classroom design.According to the students 'feedback and examination results,the research of this topic has achieved certain positive results: after a semester of multi-study activities,through the pre-test,mid-test and post-test analysis,the students of the experimental class study enthusiasm,study interest and academic results compared with the comparison class,the chemistry core literacy is obviously higher than the comparison class.Due to the limited academic level and energy of the researchers,this study only thinks of the microcourse video as the previewing resource,although the method is effective,the previewing resource is relatively simple,the previewing content resource is not enough,and there is no detailed practical proof for the students with weak learning ability.