Research On The Teaching Design Of Triangular Identity Transformation Under The Teaching Mode Of "Independence,Cooperation And Exploration"

In the new era,more and more attention is paid to the communication and cooperation ability and learning ability of talents.The new curriculum reform,however,clearly proposes that students should advocate independent,cooperative and exploratory learning methods.And the traditional teaching mode of "lecturing" is difficult to meet the needs of the development of the new era and to implement the concept of the new curriculum standard,Under the teaching mode of "Cooperation and Inquiry",the research on the teaching design of triangle identity transformation is the problem to be studied in this article.Firstly,the paper,based on the literature research,reviewed the research and development of the teaching mode of "independence,cooperation and exploration" and the teaching of trigonometric identity transformation.Secondly,from two aspects,it compared and analyzed the contents of trigonometric identity transformation in 2007 edition and2019 edition of the senior high school mathematics textbook.Thirdly,it investigated the mathematics learning of senior high school students and the mathematics teaching of front-line teachers through questionnaires and interviews.On this basis,it summarizes the three major problems in the current triangle identity transformation teaching: students are not motivated to learn,and the classroom atmosphere is relatively dull;student subjectivity cannot be exerted,classroom efficiency is low;students are constrained in thinking and cannot use the Learn knowledge.Finally,based on the problems found,based on the "independent,cooperative,and inquiry" teaching model,five teaching strategies were proposed: create interesting situations and ask selected questions;properly intervene and guide students to think;reasonably set up groups and regulate group communication;do Good classroom presupposition,guide doubts and dispel doubts;summarize knowledge types,summarize thought methods,and two specific teaching design cases of triangular identity transformation were designed.To conduct teaching experiments and perform statistical analysis on the experimental results using comparative analysis.With the analysis of the experimental results,it is found that the combination of the teaching mode of "independence,cooperation and exploration" and the teaching mode of trigonometric identity transformation is effective,which can meet the needs of the development of students in the new era and the requirements of implementation of the new curriculum standards.