以下是关于【分数的初步认识】的公开课/优质课视频，一共149个
1:04:3452-
38:2629 -
27:38108 -
36:16136 -
38:09135 -
41:5341 -
36:17119 -
39:1982 -
40:3247 -
35:1378 -
40:0014 -
51:47101 -
37:2528 -
40:4655 -
17:1043 -
40:4024 -
39:0588 -
1:01:2545 -
41:48126 -
15:0527 -
17:1589 -
06:0078 -
05:59134 -
06:2374 -
06:0010 -
04:16122 -
14:5847 -
06:1313 -
48:1781 -
19:2816 -
41:4864 -
39:2125 -
19:28115 -
14:58116 -
43:5760 -
40:40114 -
20:3046 -
37:2442 -
40:46123 -
39:0523 -
40:0095 -
30:5347 -
39:0534 -
40:3238 -
24:5592 -
35:1326 -
40:4648 -
37:3757 -
36:4873 -
29:0832 -
12:1937 -
45:1692 -
41:1592 -
37:27117 -
40:096 -
41:0446 -
40:2247 -
40:2359 -
20:4966 -
02:288 -
14:0628 -
37:38116 -
34:38118 -
32:0337 -
06:1462 -
06:0559 -
41:0058 -
39:06121 -
31:50104 -
35:51104 -
41:3364 -
42:3722 -
38:50125 -
41:2091 -
41:43132 -
42:45139 -
40:39113 -
41:0970 -
36:37109 -
41:2180 -
41:05130 -
39:4848 -
48:16111 -
01:19:2339 -
41:19111 -
38:45129 -
50:0418 -
41:0662 -
36:5649 -
41:1570 -
40:5881 -
29:556 -
40:3316 -
36:51132 -
39:5459 -
39:11123 -
27:43124 -
43:2092 -
46:4378 -
30:55109