The Chemistry Exercises Design Research Based On The Unit Teaching

Chemistry exercises are an important form of chemical study.Solving chemical problems is an important learning process in chemical learning process.The main role is to consolidate the knowledge, training students to analyze the problem and solve the problem of the basic literacy.However, the current setting of the middle school chemistry exercises is the lag and weak link in the new curriculum reform.The research of exercises design are still the problems that teachers should pay attention to in the course of teaching.Based on the unit teaching, this study carries out the design of chemistry exercises.Research methods such as literature research, theoretical analysis and practical analysis are used.A relatively comprehensive analysis of high school chemistry teaching material exercises and in recent years the college entrance examination questions, supplementary materials of relevant exercises.The level type and design strategy of chemistry exercises based on unit teaching are summarized.Taking Shandong version required 1 chapter second "elements and the material world" as an example of the planning unit exercise system.Hope to be able to initiate and compiling the chemistry exercises provide some useful reference and modest contribution to the chemistry teaching.In this paper,chemistry exercises based on unit teaching are devided into three types and levels: class exercises, after-school exercises, the unit exercises, The relationship between three are close.The previous level exercises of practice is the basis of the behind hierarchy exercises.And from a certain extent, behind hierarchy exercises play an important role in previous level exercises.All kinds of exercises in the education teaching stage,these order of appearance,function and design strategy each are not identical, but all have the permeability and clarity. From the point of aim, under the unified teaching goal, at the request of the different levels,all exercises progressive function complementary, to form a whole. These play a important role in comprehensive reviews help students consolidate knowledge and improve the ability to solve the problem of comprehensive.Practice part of this study, using the paper put forward the theory of idea to design a set of exercises, and independent design of exercises in a minority of teachers and students to try, to get some feedback and advice.This article includes the following seven parts:The first part, the problem is put forward, mainly including selected topic reason and the value of the research.The second part, the literature review, the review of unit teaching, problem sets design at home and abroad and unit problem sets and other related research, summarizes the achievement of the research subject, analyzes the research status quo, put forward his own research ideas.The third part, clarified the purpose of this study, task, method, significance.The fourth part, the theoretical framework, sums up the definition of unit teaching and unit problem sets, has been clear about the unit problem sets system characteristics, this study was carried out on the unit problem sets hierarchy type division, build various types of problem sets strategy, design thinking.The fifth part, in order to LuKe version required 1 chapter 2 "element and the material world" as an example application building strategy and design ideas, prepare the problem sets system.The sixth part, the empirical study, make Jinan a provincial key high schools in Shandong province high student exercises on the use of the design institute, after the end of unit teaching, for measuring the effect after test, the results are obtained.The seventh part, reflect on the results and deficiencies of this study and put forward prospect.