Compilation And Application Of High School Chemistry Sub-level Exercises From The Perspective Of Core Literacy

In order to meet the challenges of today's ever-changing real world and cultivate future citizens who are better adapted to work and life in the future,many international organizations,countries and regions around the world are actively exploring core literacy.At the end of 2016,the Ministry of Education solicited opinions from educational peers across the country on the new curriculum standards for regular senior high schools(revised)based on core discipline literacy.On December 29,2017,the Ministry of Education issued about the newly revised "ordinary high school curriculum standards of each course",including the ordinary high school chemistry curriculum standards(2017 edition)which clearly put forward the five core literacy of chemistry discipline.On the basis of connotation and goal description,the five aspects of literacy is further divided into four levels,which specifically reflects the basic requirement of chemistry subject educating under socialist core values.The core accomplishment of high school chemistry discipline is a crucial part of the development of the core accomplishment of high school students.Under the background of the implementation of the new chemistry curriculum standard,the compilation of chemistry exercises should adhere to the orientation of the scientific accomplishment of chemistry discipline and respond to the various levels of the core accomplishment of chemistry discipline.Chemistry exercises are one of the most important parts in chemistry teaching.The front-line teachers and related teaching researchers attach great importance to them and have done a lot of research on them.The author searched "division by different level"through literature review,and found that there was only one paper about education,which is on music teaching.Most of the chemistry educators' research on chemistry exercises focuses on the teaching function,teaching strategy,selection of exercises and the relationship between exercises and teaching materials.Relatively speaking,only a small number of researchers have studied the compilation of exercises.Among them,the hierarchical exercises in the literature are related to the level exercises in this subject to some extent,but they are qualitatively different.Therefore,in order to meet the requirements of high school students' core accomplishment and academic quality standards under the reform of college entrance examination,it is an urgent problem to divide exercises into different levels.Through the implementation of the questionnaire survey,this author understands the students' understanding of the core accomplishment of chemistry discipline,the evaluation of the existing exercises,and the understanding of the relationship between the exercises and knowledge and accomplishment.According to the chemistry curriculum standards and the level division of the chemistry discipline core literacy,exercise design is carried out in combination with the differences of students' cognition and knowledge structure,and finally the framework,principles,procedures,strategies and other steps of exercise compilation for different levels.According to the different levels of academic quality requirements that students should achieve in each topic and each unit,this paper takes five topics,namely ion reaction,REDOX reaction,basic organic chemistry,methods and procedures for studying the properties of substances,and chemical power source,as examples,to prepare some level exercises in the sections of the textbooks.After selecting four classes in grade two to test and apply the exercises that have been prepared,the author selects the students who have been tested to talk,and then modify and improve the exercises after feedback.At the same time,the author analyzes the students' test papers,and tests the achievement of the students' core quality of chemistry.This study is of great significance in developing students' core accomplishment of chemistry discipline,implementing the guiding spirit of the 2017 version of curriculum standards for teaching,conforming to the trend of the reform of examination and enrollment system(the new college entrance examination),and practicing the evaluation based on the core accomplishment of chemistry discipline.