Research On Teaching Strategy Of Mathematical Function Image In Junior Middle School

The image and nature of the primary function is the content of the nineteenth chapter of the eighth grade.The image and nature of the quadratic function is the teaching content of the twenty-second chapter of the ninth grade.The image and nature of the inverse proportional function is the second grade of the ninth grade.The content and nature of these three types of functions are one of the difficulties in the junior high school students.The junior high school students generally reflect this part of the abstraction and poor understanding.Therefore,it is very necessary to study the teaching strategies of the junior high school function image.According to the status of the function image in the textbook and in the curriculum standards,and the proportion of the scores in the middle school entrance examination,the students in the second and third grades of the seventh middle school of Qinyang City are used as the survey objects,and the teachers are surveyed through questionnaires.The existing problems and the difficulties in the student learning function image,through the specific teaching examples in the textbook and using the geometric sketchpad to discuss the properties and images of the primary function,the quadratic function,the inverse proportional function and analyze the parametric variable to the primary function.The influence of the images of quadratic functions and inverse proportional functions.Finally,the teaching strategies are studied and the teaching suggestions are put forward: firstly,multimedia teaching should be used in the teaching of normal function images,and secondly,students should be trained in the combination of numbers and shapes.Finally,When explaining the function image,it is closely related to the actual problem.