课标全国卷中三角恒等变换试题的分类解析

AbstractThis paper takes the test questions related to angle transformation formula in the newcurriculum standard national examination paper (mathematics for science)from 2009 to2019 as the research object,which combines with the requirements of the new curriculumstandard,the predecessors'researches and the characteristics of test questions and so on.Starting from two sets of the base formula (two-fold duplication formula and the sum andremainder formula of two angles)in angle transformation formula,the papersystematically divides the test questions of angle transformation formula in the past yearsinto three categories and gives classification analysis.At the same time,the learning of thecontent related to angle transformation formula is worthy to explore from the perspectiveof mathematical thinking methods and some suggestions are made.Key words Angle transformation formula New Curriculum Standard NationalExamination Paper;category;analysis;mathematical thinking methodII