Study On The Design Of Exercise About Chemical Equilibrium From Pep Version In The New Curriculum Reform

Chemistry exercises throughout the chemistry teaching process occupies a very important position,is to connect teachers to teach and students of the important bridge of learning.It can help students to deepen their understanding of knowledge,but also feedback information,check the results,so that teachers continue to adjust the teaching plan to improve and improve their teaching strategies to achieve the desired teaching results,the teacher and student communication in the teaching process the main tool.However,in the face of college entrance examination focus on the rate of enrollment under the pressure of textbook exercises and the role of the exercises did not get real play.Teachers and students are more willing to subscribe to supplementary materials,papers exercises,etc.,relying on the title sea tactics to improve student performance,increase the rate of heavy enrollment.First,because the examination-oriented education system and the concept of deep-rooted in the hearts of teachers,students and parents,through various means to make students a good college.Followed by the textbooks exercises can’t meet the needs of students learning and personality development.In addition,the textbook exercises aren’t well used,the function can’t be fully played with the teacher’s teaching strategies and curriculum resources development relationship.Therefore,teachers should be aware of the existing problems in the use of chemical textbooks problems and teaching situation,in-depth understanding of textbooks after the exercises to write the intention to solve the problem of good use of textbook exercises can’t be used to improve students’ Scientific-literacy.Grasping the compiling characteristics of the new teaching material module,mastering the content of the teaching material,constantly perfecting and renewing the teaching idea and teaching strategy,fulfilling the requirements of the moral person and bringing into full play the core function of the course in personnel training.The concept of chemical equilibrium content is more abstract and complicated.It is difficult for students to accept and learn.It also affects the ionization balance of weak electrolyte,the hydrolysis equilibrium of salts and the dissolution balance of insoluble electrolyte.The author believes that the content and compilation of the exercises after the chapter of the chemical balance should be paid attention to by the teachers and the researchers.Therefore,this text has carried on the research to the PEP edition chemical equilibrium synchronous exercise compilation.During the study,we first read the relevant literature on the curriculum reform after class,summed up in the notes and the theoretical part of the synchronization exercises.Under the guidance of literature research and theory,the students were surveyed and the students’ use of the " Chemistry 4" exercises was investigated.Then the teachers were interviewed to understand the situation of the textbook exercises.Then through the analysis and collation of the survey results and interview records,the paper summarizes the problems and the present situation of the students and teachers in using the"Chemistry 4" textbook exercises.Then the theory of problem solving,theory of proximate development and theory of cognitive load are used.It is of great significance to study and solve the problems of the chemical balance in the national volume of the national college entrance examination in the last ten years,and to master the hot and difficult points of the college entrance examination and the changing tendency of the proposition.At the same time,the paper analyzes the syllabus and curriculum standards,the design problems of the "Chemistry 4" after-class exercises,and studies the compilation of synchronous exercises from both theoretical and practical aspects.According to the requirements of curriculum reform,the design principles of synchronous exercises are summarized.According to the principle of compiling the exercises,combining the teaching practice,paying attention to the three-dimensional curriculum goals,and coordinating the various factors,the synchronous exercises of the chemical balance chapter are compiled.Finally,the shortcomings and limitations of the research are reviewed and summarized,the synchronous problems of chemical balance are worked out,and some suggestions and prospects are given.