The Applied Research On Creating Situations About Trigonometric Function In High School

The Situated Cognition theory (Situated Cognition) is the social constructivist theory (social constructivism) of a small branch. We all know, social constructivism of learning and knowledge construction mechanism of social culture behind it. It as an associated with learning essence, important theoretical system, its core idea is to learn, situational knowledge and wisdom. It is mainly emphasize that everyday cognitive (everyday cognition), authenticity task (authentic tasks) and situation sex ACTS training (in-the context apprenticeship training) in the important influence in the process of learning. Apply it to mathematics study, it is crucial to help students. However, in terms of situated cognition theory itself, and how to apply it in real teaching, how to make the situation created appropriately, how to make a scene on the basis of students’ awareness of the original correct guidance, and arouse the students’interest in learning, improve the students’mathematical thinking ability has become the focus of the broad masses of the forefront of the educators.The new around of mathematics curriculum reform of mathematics teaching method puts forward a new idea and requirements. To this end, the classroom teaching strategy of change, when students learn knowledge guide and teacher do when students encounter problems to solve, creation of the appropriate situation is extremely important and key. The essence of the situated cognition theory in this paper, the knowledge, and the meaningful learning theory and learning advocated by the new curriculum idea has inner suit a point, and on the formation of a new mathematics classroom teaching strategies have important enlightenment. Mathematics classroom teaching under the background of new curriculum should be under the situated cognition theory fully embodies:the essence of the knowledge expression to knowledge and the link between the knowledge points, in the process of classroom teaching experience and flexible interaction of teachers and students in teaching activities.Based on a series of theoretical basis and the surrounding environment cognition theory in the teaching of the trigonometric functions of the application of case analysis conclusions:(1) the situated cognition theory in the classroom teaching, the application of trigonometric function can abstract concept embodiment of knowledge, make the students’understanding of knowledge easy to understand, for the study to lay a solid foundation of knowledge.(2) the situated cognition theory in the classroom teaching, the application of trigonometric function can make mechanical formula theorem becomes meaningful. When students in the face of various formula again, never to rote learning, but rather through clever understanding and memory, truly realize from "mechanical learning" to "meaningful learning" transformation of perfect.(3) the application of situated cognition theory in teaching can give students a positive spirit guide. Then on the spirit of the students create a positive, optimistic and confident atmosphere of positive energy. It is situated cognition theory, in general, in classroom teaching, the application of trigonometric function for not only the external knowledge, plays an important role in guiding concept level, but also for the students’inner cognitive and mental hint guide also play a positive influence.Outlook and suggestion:with the deepening of new curriculum reform, the situated cognition theory will also along with the development of the era and the outside conditions change and constantly update and change. Throughout the development of the future, the author will put forward the following Suggestions:(1) the teaching establishment, take teaching, mo into the wrong way. Don’t walk into the two extremes of "myth", should pay attention to the efficiency of the classroom teaching.(2) the implementation of the situational teaching, to gradually transition of penetration, don’t rush. Education and the development of any things are the same, knife don’t miss your job, more haste, less speed.(3) the implementation of the situational teaching, according to the actual situation, pay attention to methods. The teacher wants to do in their spare time "situation""homework".