“锐角三角函数的简单应用”是苏科版教材第七章第六节的内容,它是在学生掌握了锐角三角函数的概念、特殊角的三角函数值和解直角三角形的基础上展开的一节应用,是解决生活中实际问题的需要,同时也是学生深刻理解锐角三角函数知识的需要.研究锐角三角函数的应用,其目的是让学生用所学知识解决实际生活中的问题,感受生活与数学的关系,培养学生学习数学的兴趣,以及应用数学的意识与能力.这节课的学习不仅是对已学知识的综合应用和深化,而且是培养学生理性思维和创新思维的有效途径.同时,在研究锐角三角函数的简单应用时,需要学生对图 “The simple application of acute trigonometric function ” is the content of the sixth chapter of Chapter VII of the Suke textbook. It is based on the students mastered the concept of acute trigonometric functions, the trigonometric function value of special angle and the solution of right-angled triangle Application of a section, is to solve the practical problems in life needs, but also students a profound understanding of the knowledge of acute trigonometric functions need to study the application of acute trigonometric functions, the purpose is to enable students to use their knowledge to solve real life problems, feel life And mathematics, cultivate students ’interest in learning mathematics and the consciousness and ability of applying mathematics.The study of this lesson not only is the comprehensive application and deepening of the learned knowledge, but also an effective way to train students’ rational thinking and innovative thinking. In the meantime, students are required to study the simple application of acute trigonometric functions