Based On The Concept Of "Three Teachings",A Case Study On The Cultivation Of High School Students’ Mathematical Operation Ability Is Carried Out

Mathematical operation ability is a mathematical ability that middle school students should possess,and it is one of the core qualities of mathematics.This paper is a case study of cultivating high school students’ mathematical operation ability based on the concept of "three teachings".First of all,through the literature method to grasp the research status of related concepts;secondly,through the preparation of questionnaires and test papers to collect data,to understand the current level of students’ mathematical operation ability of the specific state;at the same time,the interview method is used to interview the front-line teachers.The interview content mainly includes the teacher’s cognition of mathematical operation ability and the strategy of cultivating high school students’ mathematical operation ability,and analyzes the key factors affecting the cultivation of high school students’ mathematical operation ability.Finally,based on the concept of ’three teachings’,combined with the current situation of mathematics operation ability of high school students in grade one,a lesson study is carried out.The results of the questionnaire survey show that most students can realize the lack of development of their mathematical operation ability,and believe that cultivating mathematical operation ability can improve mathematical performance,but they do not have a complete understanding of the relevant knowledge of cultivating mathematical operation ability and lack initiative.The results of the test paper show that the level of mathematical operation ability of students in grade 1 is generally not high,among which boys are slightly higher than girls but there is no significant difference;there are significant differences in the overall ability level between the special class and the ordinary class,but there is no significant difference between the classes of the same category.This paper selects the compulsory one of the new mathematics textbooks,and conducts a case study on the teaching content of students’ mathematical operation ability.The lesson study mainly includes five sections : the analysis section of the two teaching records,the analysis section of the teaching content,the overall teaching design section,the teaching reflection section and the lesson study summary section.The whole lesson study found that the concept of "three teachings" is conducive to teachers’ implementation of the cultivation of students’ mathematical operation ability in teaching.Specifically,"teaching thinking" helps students find problems,ask questions and solve problems;"Teaching experience" experiences the generation of knowledge,promotes students’ understanding of knowledge,and comprehends mathematical research methods."Teaching expression" sublimates students’ understanding of mathematical knowledge and cultivates mathematical operation ability.