Research On Micro Class Of Junior Middle School Mathematics Students Based On Constructivism Learning Theory

Acute trigonometric function is the most abstract and difficult to understand function in junior high school mathematics function module,which has the dual properties of function and geometry.Most junior high school students have difficulty with abstract concepts of functions,especially acute trigonometric functions.As a popular teaching method at present,micro class is not only interesting,can be paused at any time,and can be played repeatedly,which is conducive to students’ learning of acute trigonometry.Through the process of making micro-lessons,students can actively collect relevant historical background,preview relevant knowledge,and think about the correlation between knowledge,so as to establish a knowledge system and experience mathematical thoughts.The production and presentation of students’ micro classes can promote learning and make students become the real protagonists of mathematics learning.Based on the constructivism learning theory,this study introduced students’mathematics micro-class into the chapter teaching of acute trigonometry,and explored the teaching effects of students’ micro-class on three different types of mathematics classes,namely,the introduction class,the new class and the review class of the same chapter.Combined with the teaching practice and emotional situation,the author selected Class 1 of the ninth year of a nine-year compulsory school in Xiamen as the research object and class 2 as the control class,and collected experimental data through questionnaire survey,knowledge testing,after-class interview and other methods.With the help of SPSS 26.0,the author analyzed the experimental data and drew the following conclusions and teaching suggestions:(1)Micro-class can greatly enhance students’ interest in mathematics learning and improve their concentration in class.Peer explanation can stimulate students’sense of exploration;Students’ micro class can promote learners’ concept construction and knowledge understanding;(2)Due to the limitations of students’ spare time and current knowledge level,students’ micro class is most suitable for the introduction class,followed by the concept class,and finally the review class.(3)Students’ mathematics micro-course is more suitable for the chapters that are closely related to life and not difficult.It can make students realize the practicability of mathematics,excavate the potential of self-learning mathematics,improve the consciousness of mathematics application and exercise the ability of mathematics expression.