Research On The Construction Of Evaluation Index System For Key Design Of Mathematics Concept Course Teaching In Junior High School

Teaching focus is an important part of teaching tasks.Teachers can arrange teaching content more clearly and pertinently through the design of the key content of knowledge points.Meanwhile,according to the key content of teaching knowledge,they can reasonably design specific teaching methods adapted to the cognitive development of students,so as to realize the effective teaching of new courses.Mathematics concept teaching is an important part of mathematics classroom teaching.Only by laying a good foundation of concept teaching can we pave the way for better classroom teaching.Under the new curriculum concept,we should pay attention to the learning process of mathematical concepts,understand the context and inner connection of each concept,penetrate the mathematical thinking method,and understand the essence of mathematics.At present,the evaluation index system has not been designed focusing on the teaching emphasis of mathematics concept course in junior middle school.The establishment of a targeted evaluation index system of teaching key design has research significance for improving the level of teaching key design of mathematics teachers and guiding the teaching of concept course.The determined research questions are:(1)What is a reasonable evaluation index system for the design of junior middle school mathematics concept course teaching?(2)What is the evaluation model of the key design of the concept course teaching based on the evaluation index system of the key design of the concept course teaching in junior middle school?In order to design the evaluation index system and evaluation model for the preparation of junior middle school mathematics concept course teaching focus,the literature analysis method was adopted firstly to sort out the existing relevant theories and studies,and the theoretical and structural basis of the evaluation index system was obtained.Secondly,considering the textual characteristics of teaching key design samples and combining with expert suggestions,NVivo11 qualitative analysis software was used to conduct coding analysis on 75 high-quality instructional design samples,and an evaluation index system was preliminarily constructed.Then,by soliciting expert opinions twice and using Delphi method,the evaluation index system and evaluation criteria were modified and improved to ensure the expert validity of the evaluation index system.Then calculate and determine the weight of the evaluation index to form the evaluation model;Finally,through the evaluation of the implementation of the test,to verify the effectiveness and reliability of the evaluation index system,the formation of a reasonable and scientific junior high school mathematics concept teaching key design evaluation index system.Research conclusion:(1)the junior middle school mathematics concept teaching evaluation index system of key design,there are three primary index(curriculum,mathematics,teaching factors),9 secondary index(content requirements,thought method,mathematics concept,concept,content,concept,applications,primary and secondary and clear,reasonable blackboard writing,teaching methods),including nine secondary indicators for each evaluation criterion.The evaluation index system has good content validity,reliability,validity and reliability,and can be used as an evaluation tool to evaluate the key design of mathematics concept course teaching in junior middle school.(2)The evaluation model designed for the teaching focus of junior middle school mathematics concept course can be expressed by mathematical formula(S represents the total score,and T1-T9 represents the score of each secondary index in turn):S(28)0.1 95T₁+0.152T₂+0.085T₃+0.162T₄+0.141T₅+0.086T₆+0.091T₇+0.056T₈+0.060T₉Suggestions on the design of junior middle school mathematics concept teaching:according to the compulsory education curriculum standards,grasp the knowledge requirements of the key chapters;Pay attention to the infiltration of mathematics thought in mathematics concept teaching;Reflect the development of junior middle school students'mathematical ability and accomplishment;Pay attention to the essential content of mathematical concepts and clarify the conceptual system by referring to relevant concepts.Guide students to see the essence through the phenomenon,find the core of knowledge,deepen the understanding of concepts;Pay attention to the specific field of mathematical concept application;Teachers should choose the best teaching methods according to teaching tasks,teaching contents and students'characteristics.The teacher must design the classroom teaching links,achieve the teaching content of the primary and secondary clear,the teaching content and the student reasonable connection;Grasp students'existing knowledge level and experience base.