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直线和圆的位置关系说课设计本溪市第十三中学王志涛一、教材分析１．本节教材所处的地位和作用。圆的教学在平面几何乃至整个数学教学中都占有重要地位，这是因为：（１）圆的知识应用广泛，是今后参加生产劳动和进一步学习其它知识的基础。（２）圆这一章，在内容上不仅...
The design of the positional relationship between the straight line and the circle Wang Zhitao, the 13th Middle School in Benxi City. The position and role of the teaching materials in this section. Round teaching plays an important role in plane geometry and even in mathematics teaching. This is because: (1) Circular knowledge is widely used and is the basis for future participation in production labor and further study of other knowledge. (2) In the chapter of the circle, not only...