几何概念是规定图形本质属性的,它与图形、语言紧密相连;几何概念又是论证的依据.学好几何概念是非常重要的.怎样学好一个几何概念呢?应该力求做到“五会”.1.会表述:能用文字语言正确叙述概念的定义;2.会画图:能画出表示概念的图形(包括变式图形);3.会识图:能在复杂的图形中正确识别出表示某个概念的那部分图形;4.会翻译:能将概念的定义翻译成结合图形的符号语言;5.会应用:能用概念进行简单的判断、推理和计算.下面以线段的中点和角平分线的学习为 The concept of geometry is to define the nature of graphics. It is closely linked with graphics and language. Geometry is the basis of argumentation. It is very important to learn the concept of geometry. How to learn a geometric concept? .1. It will be expressed: The definition of the concept can be correctly described in the language of the text; 2. The drawing will be drawn: the figure representing the concept (including the variant figure) can be drawn; 3. The figure will be recognized: It can be correctly identified in the complex figure. The part of the figure that represents a concept; 4. Will be translated: The definition of the concept can be translated into a symbolic language combined with graphics; 5. Will be applied: Can use the concept of simple judgments, inferences and calculations. Below the midpoint of the line segment And angle bis for learning