《两个向量的数量积》说案（The dot product of two vectors says a case）.docVIP

《两个向量的数量积》说案（The dot product of two vectors says a case） The dot product of two vectors says a case January 3, 2008 13:46 dalian education college click: 1144 The dot product of two vectors says a case Textbook: the standard experimental textbook of normal high school curriculum standard experiment textbook B edition (optional 2-1) Distinguished experts and judges, good morning! Im from dalian. 36 middle school mathematics teacher wang, nine years experience, primary school teachers. Today I practice on the topic of the two vectors of the dot product. I will, through the analysis of the teaching material analysis, learning goal design, methods, means, process design and the teaching evaluation of six parts, elaborated this class the teaching design. I. textbook analysis 1. Teaching content The two vectors of the dot product is the new standard are taking 2-1 in the content of the third section, the third chapter first large sections according to the syllabus, this section, a total of 1 class, the main content is the concept of space of two vector Angle and space concept, the nature of the two vectors of the dot product, operation rate and easy application. 2. Status and role Angle, the dot product of two vectors is an important content of high school math vector, and the importance of the college entrance examination examination content. Look from the knowledge of network structure, space vector Angle, the dot product is plane vector Angle, continuation and expansion of the dot product concept, and the subsequent spatial vector calculating coordinates of the dot product and vector used in solid geometry teaching base, have the effect of flow. At the same time, using vector processing solid geometry problem, can make the students to overcome the obstacle space imagination and problem solving, provides a new thought for the study of the three-dimensional geometric methods and tools, has a considerable advantage, and rich in the structure of the students thinking at th