School Students About The Introduction Of The Space Vector To Solve The Three-dimensional Geometry Problems Cognitive Impairment And Teaching Countermeasures

Content:As an important mathematical concept of the modern mathematics, veetor has plays the role of bridge for communicating algebra, geometry and trigonometric functions. As been an important part of the middle school mathematics teaching, vector can provide a new treatment for solid geometry problems and give us a effective tool for solving three-dimensional space graphic position problem.At present, the vector method solving solid geometry problems has got great attention in math education. And many domestic people have done a lot of theoretical exploration, but these researches are mostly stay in theory, lack of a gleam of teachers and students of empirical research, and lack of space vector attitude of middle school students. As vector being more and more important in university entrance exam, the study on the teacher and student attitude on vector method have great meaning of study, which solve three-dimensional geometry problems good. The author uses literature, questionnaire and interview on studying the attitude of teacher and student facing vector and gets some conclusions as follows:1) there are cognitive disorder of the vector solving the solid geometry problem in students; 2) teacher recognizes the vector fact, but they worry that the vector infect the students space fancy training. For these reason, author provide some advices on teaching method for students.