The Teaching Design Of The "Triangle Function" Unit Of Mathematics Basic Pattern In The Electromechanical Specialized Subject Of Middle Vocational Schools

The knowledge learning of the engineering course electromechanical specializedsubject is most as the triangle function with the calculating tool, at the same time, becausethe triangle function has a lot of formula, and has many kind varieties, and is the one ofdifficult contents that students felt. Therefore, it must enhance the teaching study of thetriangle function unit.If we used of the scientific method to instruct the teaching design of triangle function,made the teacher has a whole plan in the start of teaching the Triangle function, in everyunit and every lesson, all has the detail teaching target. If we can arranged the teachingcontent following the concrete situation, chose the proper teaching method and teachingmedia, provided the problem situation in the start of teaching, made the student feel that itis necessary to know anew the notion of triangle function, and realize the widelyapplication of triangle function in the specialized subject learning and reality live. In theconcrete teaching progress, make knowledge become one body through the relation, andadd up the proper teaching method, the teachers like to teach and the students like to learn,it is naturally to be arrived the good teaching effect.This paper divided two parts: The first part is main about the literature review andanalysis, discussed the meaning and basic theories of the teaching design; overlooked therelevant research of triangle function in the mathematics of middle vocational schools, therequirement of new syllabus for the triangle function; and the study and analysis of trianglefunction teaching method. The second part is the case analysis, main analyzed three cases: The extend of the notion of angle, he triangle function of the arbitrarily angle, The imageand properties of the sine function.