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1、课题 6.12 平面直角坐标系（2）【学习目标】：1认识平面直角坐标系，了解平面直角坐标系中象限的的概念.2.知道每个象限及坐标轴上点的坐标特征。3.在平面直角坐标系中能熟练地由点的位置确定点的坐标或由点的坐标确定点的位置。【学习重点】：知道每个象限及坐标轴上点的坐标特征。【学习难点】：在平面直角坐标系中能熟练地由点的位置确定点的坐标或由点的坐标确定点的位置一、【温故知新】：1在平面内画两条 _ 的数轴，组成平面直角坐标系。水平的数轴称为_或_;竖直的数轴称为 _或_;两坐标轴的交点为平面直角坐标系的 _ 2写出图 1 中各点的坐标。图 1 图2 二、【自主探究】（一）、预习自我检测（阅读课本
2、第42 页并完成以下问题）精品资料-欢迎下载-欢迎下载 名师归纳-第 1 页，共 4 页 -1.在平面直角坐标系中，坐标平面被_分成_部分，分别叫做_、_、_、_。坐标轴上的点_。请在图 2 中标出每个象限2、思考：结合温故知新第2 题 完成下表点的位置横坐标符号横坐标符号在第一象限+在第二象限在第三象限在第四象限在 x 轴上在正半轴在负半轴在 y 轴上在正半轴在负半轴原点（二）、我的疑难问题：三、【合作探究】1.请说出下列各点所在的位置A(2,-7),B(32,4)C(-2,-7),D(-142,63),E(2,0),F(0,-7),G(0,0)精品资料-欢迎下载-欢迎下载 名师归纳-第 2
3、 页，共 4 页 -文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2
4、T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档
5、编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4
6、P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U
7、3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS
8、10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7
9、A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A72.点 P(4,7)到 x 轴的距离为，到 y 轴的距离为。3.已知 A(a 1,3)在 y 轴上，则 a=.4.平面直角坐标系内，已知点P（a,b
10、）且 ab0，则点 P 在第象限。四、【达标测试】1点（-3，2）在第 _象限；点（2，-3）在第 _象限2点（p，q）既在 x 轴上，又在 y 轴上，则 p=_；q=_3点 M(a,0)在轴上；点N(0,b)在轴上.4.坐标平面内下列各点中，在x轴上的点是（）A、（0，3）B、)0,3(C、)2,1(D、)3,2(5.在方格纸上有 A、B 两点，若以 B 点为原点建立直角坐标系，则 A 点坐标为（2，5），若以 A 点为原点建立直角坐标系，则B 点坐标为（）A（-2，-5）B（-2，5）C（2，-5）D（2，5）6.坐标平面内下列各点中，在x轴上的点是（）A、（0，3）B、)0,3(C、)2
11、,1(D、)3,2(7已知 x 轴上的点 P 到 y 轴的距离为 3，则点 P 的坐标为（）A（3,0）B（0,3）C（0,3）或（0,-3）D（3,0）或（-3,0）8在平面直角坐标系中，点（-1，m2+1）一定在（）A第一象限B第二象限C第三象限D第四象限9.如图 3 式边长分别为 8 和 6 的长方形，试建立适当的坐标系表示顶点A、B、C、D 的坐标。A D CB 精品资料-欢迎下载-欢迎下载 名师归纳-第 3 页，共 4 页 -文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2
12、T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档
13、编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4
14、P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U
15、3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS
16、10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7
17、A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 Z
18、M9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7五、【我的感悟】：这节课我的最大收获是：我不能解决的问题是：_ _ _ _ _【课后反思】：精品资料-欢迎下载-欢迎下载 名师归纳-第 4 页，共 4 页 -文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文
19、档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL
20、4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10
21、U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 H
22、S10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G
23、7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2
24、ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7文档编码:CL4P6B10U3M6 HS10U6G7A1W2 ZM9M4M2T1A7