The Difficulties Of The Senior High School Students Learning Trigonometry

It is important trigonometric function in mathematics in high school.Because trigonometric function has close relationship with manychapters. Based on the analysis of the teaching content，we found that：fewer hours for trigonometric functions，more contents；more exerciseafter class，more difficult; it is more difficult to learn triangle identicaltransformation.By analsising students solving error problems，we found that: mostis the error methods; There are calculation error as common mistakes;there are some poor students who have fruquent knowledge errors.By the research，the following conclusions can be drown. It is a kindof objective existence for trigonometric function learning difficulties.Trigonometric function learning difficulties for high school student are：knowledge；methodological；habits；capacity；strategy；curriculum.The suggestion is that:(1)improvement in teaching material’s;(2)thesuggestions of improving learning methods;(3)the suggestions of improving teaching methods.