A Survey Of Trigonometric Function Learning Disabilities Of High School Students And A Study Of Teaching Strategies

Trigonometric functions are one of the contents of high school mathematics.In recent years,trigonometric functions in the college entrance examination are often combined with other knowledge points in mathematics for examination.These contents form a fixed pattern in the college entrance examination,and their proportions in multiple choice questions,fill-in-blank questions or solution questions are almost fixed.Trigonometric function is widely used,it is not an independent chapter of knowledge,it is closely related to algebra and geometry,at the same time,it is not only used in mathematics disciplines,in other disciplines and even life can be used;With the continuous progress of curriculum reform,the content of trigonometric function knowledge module is also changing.It is not only the basis of learning knowledge,but also the foundation of developing ability.Therefore,experts at home and abroad pay special attention to the learning disorder of trigonometric function in high school students.The importance of trigonometric functions in the whole high school mathematics cannot be ignored.However,in the actual teaching,many of our teachers found that students in learning trigonometric function problems,such as students have no interest in trigonometric function content,do not understand what the teacher is talking about,can understand the teacher's topic,when they review and consolidate but forget how to do this problem and so on;The content of trigonometric functions is complex and diverse,which leads to the formation of learning disabilities.Because the content of trigonometric functions is complex and diverse,this paper tested students and asked them to fill in the corresponding questionnaire and test paper to analyze the problems in learning trigonometric functions.Aiming at the problems generated by students,this paper provided solutions to the learning disabilities of trigonometric functions.Through the answers filled in by the students,this paper finds that the students have the following problems:students have improper emotional manipulation;There is no certain persistence;Bad study habits;The way to solve the problem is not selected properly;Lack of understanding of definitions;You can't find the right way to use the formula;Calculation accuracy is not high,the lack of mathematical thinking.According to the research in this paper,combined with the actual situation of teaching,this paper gives the following solutions:pay attention to the emotional attitude of students in learning,including improving students' confidence and interest,correct students' learning attitude;Deepen students'understanding of conceptual property knowledge with the help of appropriate tools,such as PPT and geometric sketchpad.Guide students to induce memory and form knowledge network structure.Popular offline mind map is a good auxiliary tool.Improve the students'ability to calculate,help students to change the habit of calculation,teach students a certain method of calculation;Pay attention to the infiltration of mathematical methods,such as the thought of classified discussion,the overall thought,the thought of transformation,etc.Finally,this paper designs some teaching cases through the solution strategy,hoping that these research processes and conclusions can have a certain impact on the front-line teachers and the readers behind.