| The parametric equation is an equation that expresses the coordinates of points on a curve by using a parameter as a medium,and is another representation of the curve in the same coordinate system.Using parametric equations to study problems,their angles are more unique and describe motion changes more directly,often more easily than ordinary equations.This has played a positive role in improving high school students’ mathematical literacy.In the "Ordinary Senior High School Curriculum Plan(Experiment)" and "Ordinary Senior High School Mathematics Curriculum Standard(Experiment)" issued by the Ministry of Education in 2003,parametric equations were considered as the focus of the elective courses,emphasizing the importance of the parametric equation of learning parameters..However,according to the results of the survey data,in the actual teaching process,students still have a lot of problems in learning and mastering the parametric equations.Teachers also have deviations from the understanding and understanding of parametric equations.The author starts from this problem and investigates and analyzes the teaching status quo of the parametric equations,trying to find out the difficulties that affect the students in learning the parametric equations and the reasons why the teachers’ teaching results are not good.In this paper,questionnaires and classroom observations were used to investigate the status quo and the status quo of the parametric equations,and first-hand data were obtained.First of all,based on my experience in teaching in middle school,the author selected a secondary school in Changchun City as the research object,designed two sets of questionnaires from two different perspectives: the student and the teacher,and then conducted the issuance;secondly,given the limitations of the questionnaire,The classroom observation method was used to observe and record the classroom teaching of two representative teachers.Secondly,through the statistical analysis of data and the results of classroom observation,the problems in the learning and teaching of parametric equations are summarized,and the reasons for the problems are found out.On this basis,suggestions for improving the teaching of parametric equations have been put forward in terms of creating situations,infiltrating mathematical ideas,improving teaching methods,and enriching teaching cases.Finally,the instructional design case of the corresponding parameter equation is given. |