1About the role of IT in high school mathematics teaching ProbeTeachers teaching activities for creative design, use of modern multimedia IT to play a unique function of the computer-aided teaching, combining the disciplines of information technology and mathematics teaching characteristics, can make the teaching of the manifestations of more figurative, diversification, visualization, conducive to fully reveal the formation and development of mathematical concepts, mathematical thinking process and substance, the formation of the display of mathematical thinking, mathematics teaching have a multiplier effect. A help to improve students enthusiasm “Interest is the best teacher”, there is good interest there is good motivation to learn, but not every student has a good interest in mathematics. “Curiosity” is the nature of the students, new things, interested in things not seen, to stimulate students learning of mathematics, it is necessary to meet their needs. 2Traditional teaching and many teaching are in strict accordance with the syllabus, students closed in boring textbooks and the monotony of the classroom, make and rich resources, the reality is completely isolated, resulting in student interest in mathematics increasingly attenuation. multimedia information technology into the classrooms, the use of Multimedia IT illustrations, audio and video simultaneously, dynamic changes, and visual image characteristics for students to create a variety of situations, can arouse students a variety of sensory participation, to mobilize the students strong desire to learn, motivational and interest. This fully shows that multimedia information technology in teaching towel. Two, to help students explore and discover Mathematics teaching process is in fact the students under the guidance of teachers, the mathematical solution to the problem studied, the process of exploration, followed by its extension, the process of innovation. Teachers on how to design a mathematical problem, select the mathematical problem become critical of mathematics teaching and learning activities. 3generated in the situation, therefore, teachers in the teaching activities in the creation of scenarios is to organize the core of classroom teaching. modern multimedia information technologies such as network information, and multimedia educational software application provides us with a powerful scene resources. For example: my basic concept of teaching, ppt to create dynamic plane vector courseware, students by exploring, and found that the basic concept of the plane vector, deep understand the meaning and effect of the plane vector coordinates. explain quadrilateral related issues, using only model to enable students to observe, on the blackboard to make a visual map of space quadrilateral plane, the majority of students after-school time, to resolve issues related to the total natural space quadrilateral the two diagonals intersect. I use in teaching the three-dimensional geometry cries board leaders indiscriminately shaped quadrilateral graphics of the live production of the rotary motion of the space, on-4site add lines, and allow students to experience the three dimensional graphic image in the process of rotational motion, students of the space observation and thinking skills, enabling them to leave a deep impression of space quadrilateral the two diagonals intersect in the observation process in resolving the other related issues will not go wrong, while students in the process discovered the concept of different surface straight line, laid the foundation for behind teaching. Thus, the role of the creation of scenarios of multimedia IT traditional teaching methods can not match. Three, to help students acquire the skills and experience Mathematics is a set of rigor, logic, accuracy, creativity and imagination with a science, mathematics teaching requires students to continue to understand the teachers design teaching activities or the environment through positive thinking, understanding and mastery of this science , then reveal the thinking process, to promote students thinking on the special requirements of the Mathematics Education. multimedia 5information technology in mathematics education there is a deep potential of the use of multimedia IT learning to guide students in the teaching towel, not only can help students to improve access to skills and experience ability to help students improve their thinking skills and understanding, you can also develop students learning initiative Majesty. For example: I explain the concept of the of this section requires students to network queries and gather information about the limit before information by collating information, and limit the practical problems associated deposit through my animation courseware, students summarize the concept of the li