A Study On The Consistency Of After-Class Exercises And New Curriculum Standards In The New High School Chemistry Textbook

After the promulgation of General High School Chemistry Curriculum Standard(2017Edition),the new chemistry textbook for senior high school compiled according to the new curriculum standard has been put into use gradually.As an important part of textbooks,exercises should be consistent with the curriculum standards.The consistency of exercises with the new curriculum standards is related to the effectiveness of curriculum reform.Therefore,it is of great practical significance to study the matching degree between the exercises and the new curriculum standard,and whether the exercises implement the concept of the new curriculum standard.On the basis of sorting out and summarizing the research results in the field of consistency at home and abroad,this paper studies the consistency between the after-school exercises of Chemical Reaction Principles,a compulsory course for senior high school chemistry selectivity in New People’s Education Press,and the new curriculum standards by using three consistency analysis modes: Weber,SEC and Achieve.The research contents include:(1)The consistency analysis of the new textbook’s after-school exercises and the new curriculum standards is carried out from four dimensions: knowledge type,knowledge depth,knowledge breadth and knowledge distribution balance by using Weber model.(2)The SEC model is used to construct the two-dimensional framework of “content theme × cognitive level” of after-school exercises and new curriculum standards respectively,and the consistency level of the two is determined according to the calculated consistency coefficient between the exercises and the curriculum standards.(3)The Achieve model was used to qualitatively analyze the alignment between the post-lesson exercises and the new curriculum standards in terms of the centripetal dimension,the challenging dimension,and the balanced dimension.(4)The conclusions are drawn by comparing the results of the three consistency analysis models,and relevant suggestions are put forward according to the conclusions.This research uses three analysis modes to analyze the consistency between the exercises of the New People’s Education Press High School Chemistry Selective Compulsory 1 and the new curriculum standard,and draws the following conclusions:(1)From the research results of Weber’s consistency analysis model,it can be seen that except for the balanced dimension of knowledge distribution of theme 1,the optional required exercises of New People’s Education Press and the new curriculum standards have reached an acceptable level of consistency in three dimensions: knowledge type,knowledge depth and knowledge breadth.(2)From the research results of SEC consistency analysis model,it can be seen that the optional required exercises of New People’s Education Edition have statistically significant consistency with the new curriculum standards as a whole.There is a good consistency between them in the dimension of content theme,but the consistency in the dimension of cognitive level and the distribution of key points needs to be further improved.(3)From the research results of Achieve consistency analysis model,it can be seen that the optional required after-school exercises of New People’s Education Edition are in good consistency with the new curriculum standards in centripetal dimension,challenging dimension and balanced dimension.(4)Comprehensive comparison of the results of the three consistency analysis models can be found that the New People’s Education Press optional compulsory 1 after-school exercises and the new curriculum standards on the whole have a good consistency,and the results of the three consistency analysis models can be mutually confirmed and complement each other.Based on the above research contents and conclusions,the following suggestions are put forward:(1)Improve the description of learning objectives in the new curriculum standards;(2)It is necessary to add academic requirements properly and strengthen the teaching guidance function of the new curriculum standards;(3)Increase the difficulty of some exercises after class,and improve the cognitive level of exercises examination;(4)Avoid a large number of repeated examinations of the same knowledge and cover all chapters to the maximum extent;(5)Expand the source of situational materials and improve the integration of situational and after-school exercises;(6)Rational use of after-class exercises to carry out learning evaluation;(7)Deeply understand the relevant requirements of the new curriculum standards and reasonably supplement the missing exercises.