The Research On Trigonometric Function Teaching Design Based On Core Literacy

Six core literacy in mathematics was proposed in Mathematics Curriculum Standards for Senior High Schools(2017 edition).How to implement the core literacy is the problem that is worth studying in mathematics education and teaching.As an important part of senior high school mathematics function,students' mathematical core literacy,such as logical reasoning,mathematical operation,intuitive imagination and mathematical abstraction,can be improved in the course of studying trigonometric function.Therefore,it is of practical significance to probe into the implementation of the core literacy in mathematics of the senior high school with trigonometric function teaching as the breakthrough point.Based on this,the research questions of this paper are as follows:(1)what are the problems in the implementation of core literacy in the teaching of mathematics trigonometry in senior high school?(2)How to design trigonometric function teaching based on core literacy?The author through the literature method,questionnaire survey,classroom observation method to analysis the shaanxi baoji 20 a gleam of a senior middle school mathematics teachers and 335 students in senior grade two in trigonometric function module,the current situation of teaching and learning from two dimensions of teachers and students,to study the trigonometric function in teaching to carry out the practical problems existing in the core literacy,and aimed at the existing problems and puts forward the trigonometric function teaching design strategy based on core literacy.Research shows that:(1)Existing problems: Teachers have a certain understanding of implementing core literacy in trigonometric function teaching,but some teachers lack effective implementation methods;Subjectively,students are not interested in learning trigonometric functions and lack certain mathematical operation,logical reasoning and other abilities.Objectively,due to the abstract nature of the teaching content of trigonometric functions and the complexity of operations,students' drawing ability is poor,and they cannot accurately grasp the properties of trigonometric functions and lack the ability to solve problems comprehensively,which is not conducive to students' learning of knowledge and cultivation of core qualities such as mathematical operation and logical reasoning.(2)In addition,implementing the core literacy in mathematics needs to optimize the teaching design,which mainly includes formulating appropriate teaching objectives,creating appropriate problem situations,paying attention to the teaching process,optimizing teaching methods and improving students' evaluation.(3)In view of the teaching suggestions above,the teaching design cases of “the Image of Sine Function”and“the Cosine Function of Two Angles” have been given.