The Formation Of The Concept Of Chemical Equilibrium In Senior High School And Study On Advanced Learning

Chemical equilibrium concept is one of the core concepts of high school chemistry discipline,which will lay the foundation of knowledge on subsequent dissolution equilibrium,ionization balance,the hydrolysis equilibrium for students.It also have important guiding significance for them to understand the balance further.Therefore,if we want to build up a complete set of balance theory system and grasp the core concept of chemical equilibrium,it will undoubtedly play a great role in helping students.However,in the study of the concept of chemical equilibrium,students have too many pre discipline concepts or misconceptions.Therefore,it is necessary for teachers to help students realize the causes of these conceptions in the course of teaching,and help them to break through the difficulties in understanding and establish the correct concept of discipline.But this process is not bound to be plain sailing.Teachers should fully realize that knowledge acquisition and skill upgrading is a step up process.Learning the advanced question is a good way to deal with and solve it.It divides the same knowledge according to different segments,and puts forward specific ability requirements.So that teachers can have a definite purpose when carrying out instructional design.This study takes the core concept of "chemical equilibrium" in senior high school as the carrier,carries out the learning advanced design and conducts empirical research through teaching.Taking the teaching content of 4 "chemical balance mobile" in high school chemistry as an example,two different teaching cases are designed.A teaching design and teaching practice in the experimental class is carried out by the author in accordance with the expected plan,and the other one is taught in the control class by an experienced old teacher in accordance with the traditional teaching mode.By comparing the test results of the experimental class and the control class in the course of teaching,and after the comprehensive examination of the students' interview and the degree of participation in the class after class,it is concluded that the learning advanced design of the core concept of "chemical equilibrium" is effective for the students' learning,This paper is divided into three chapters:The first part studies the relevant literature and clarifies the relevant core concepts of "chemical equilibrium".Taking the core concept of "chemical equilibrium" as an example,the expectation level of 4 levels of this core concept is summarized.On this basis,the teaching design of "chemical balance movement" is carried out.In the second part,the pre-test and post test of two classes are made by self-designed test questions.Before the teaching practice is carried out,students are tested to understand the students' cognitive level.After the completion of the teaching practice,two classes of students were tested on the contents of the "chemical balance movement".After the test is completed,select representative students to conduct interviews,so as to fully understand the students' feelings and experience in this lesson.The third part is the combination of investigation and theoretical analysis,and puts forward relevant conclusions:compared to the traditional teaching model,teaching design based on learning advanced is effective for students.It enables students to understand the concept from a qualitative perspective to a quantitative perspective,and further improves the students' cognitive level.Moreover,in the whole teaching process,students can think positively and participate actively,thus improving the classroom interaction.Change the traditional classroom teacher's teaching mode and students'passive acceptance mode.