初一数学一单元总结初一数学几何体单元怎么总结?

问题描述:

初一数学一单元总结
初一数学几何体单元怎么总结?

{详写的}
```````````````````1.1 立体图形
`````````````上底面 ```````````````下底面 `````````侧面
``````圆柱体 圆形且与下底面相等 圆形;平行于上底 曲面,……
柱体:
``````棱 柱 上下底平行… 为多边形…… 都是矩形…
`````…… …… …… ……
椎体:
`````…… …… …… ……
`````…… …… …… ……
台体:
`````…… …… …… ……
球体:…… …… …… ……
(把图形画上,再把你们学的内容填上就ok了.)
````````````````1.2 点 线 面
1.点(运动)→线(运动)→面(运动)→体
2.面面相交成线,线线相交成点.
3.旋转过程中图形的表面积与体积的变化情况.
……
{展开与折叠……}
````````````````1.3 截一个几何体
1.球体(截面)——圆
2. 圆柱→水平:… 纵向:… 斜切:…
柱体
棱柱→(同上)
3.椎体(同上…)
````````````````1.4 从不同方向看
1.主视图(高、长)
2.左视图(高、宽)
3.俯视图(长、宽)
```````主视图 ```````左视图 ```````俯视图
球体
圆柱
圆锥
组成图
(把图形画上.)
`````````````````1.5 平面图形
1.多边形
概念:……(图)
2.数多边形的边及三角形个数
(图) n(n-1)/2……
小结:
````````````````````生活中的几何体
``````````````````/ ````| ````|```` \
````````````````分类 ``展开 `截面 ``视图
````````````````````````|_____________|
``````````````````````````````|
```````````````````````````平面图形
```````````````````````````(生活)
ps:居然不能空格…所以用“```”来保持美观…
(呼...累死我liao ……)