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01. 平行与垂直.mp4 | 2022-05-25 11:03:57 | 146.18 MB | |
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02. 倍的认识.mp4 | 2022-05-25 11:03:58 | 116.79 MB | |
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03.对称.mp4 | 2022-05-25 11:03:57 | 125.52 MB | |
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04. 分数的意义.mp4 | 2022-05-25 11:03:57 | 117.47 MB | |
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05. 平行与相交.mp4 | 2022-05-25 11:03:56 | 116.24 MB | |
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06. 方程的意义.mp4 | 2022-05-25 11:03:58 | 101.44 MB | |
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07、因数与倍数.mp4 | 2022-05-25 11:03:56 | 123.85 MB | |
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08.长方体与正方体的认识.mp4 | 2022-05-25 11:03:57 | 105.85 MB | |
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09、可能性.mp4 | 2022-05-25 11:03:56 | 102.19 MB | |
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10.负数.mp4 | 2022-05-25 11:03:57 | 91.29 MB | |
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100 观察物体.mp4 | 2022-05-25 11:03:56 | 60.3 MB | |
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101 数学广角-优化.mp4 | 2022-05-25 11:03:57 | 70.14 MB | |
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102 平移.mp4 | 2022-05-25 11:03:57 | 60.93 MB | |
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103 组合图形面积 (.mp4 | 2022-05-25 11:03:57 | 73.44 MB | |
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103 组合图形面积.mp4 | 2022-05-25 11:03:56 | 73.92 MB | |
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104 折线统计图.mp4 | 2022-05-25 11:03:57 | 72.98 MB | |
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105 位置.mp4 | 2022-05-25 11:03:56 | 64.46 MB | |
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106 等式的性质.mp4 | 2022-05-25 11:03:57 | 77.24 MB | |
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107 观察物体（三）.mp4 | 2022-05-25 11:03:57 | 85.64 MB | |
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108 3的倍数的特征.mp4 | 2022-05-25 11:03:58 | 73.37 MB | |
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109 容积和容积单位.mp4 | 2022-05-25 11:03:56 | 83.08 MB | |
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11.角的认识.mp4 | 2022-05-25 11:03:56 | 99.62 MB | |
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110 约分.mp4 | 2022-05-25 11:03:56 | 59.6 MB | |
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111 分数加减混合运算.mp4 | 2022-05-25 11:03:57 | 74.37 MB | |
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112 方向与位置.mp4 | 2022-05-25 11:03:58 | 84.66 MB | |
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113 复式条形统计图.mp4 | 2022-05-25 11:03:57 | 86.62 MB | |
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115 数学广角-找次品.mp4 | 2022-05-25 11:03:57 | 71.54 MB | |
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116 复式折线统计图.mp4 | 2022-05-25 11:03:57 | 82.79 MB | |
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117 图形的运动（三）.mp4 | 2022-05-25 11:03:57 | 71.97 MB | |
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118 分数四则混合运算（一）.mp4 | 2022-05-25 11:03:57 | 91.26 MB | |
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119 百分数.mp4 | 2022-05-25 11:03:56 | 71.3 MB | |
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12.比.mp4 | 2022-05-25 11:03:57 | 96.33 MB | |
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120 百分数的相关应用.mp4 | 2022-05-25 11:03:57 | 70.19 MB | |
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121 扇形统计图.mp4 | 2022-05-25 11:03:57 | 75.12 MB | |
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122 圆锥的认识.mp4 | 2022-05-25 11:03:57 | 62.27 MB | |
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123 解比例.mp4 | 2022-05-25 11:03:57 | 63.67 MB | |
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124 数学广角-数与形.mp4 | 2022-05-25 11:03:56 | 70.12 MB | |
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125 分数四则混合运算（二）.mp4 | 2022-05-25 11:03:57 | 72.75 MB | |
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126 比例尺.mp4 | 2022-05-25 11:03:57 | 61.73 MB | |
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127 反比例.mp4 | 2022-05-25 11:03:57 | 74.85 MB | |
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128 年、月、日.mp4 | 2022-05-25 11:03:57 | 77.84 MB | |
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129 数学广角-烙饼问题.mp4 | 2022-05-25 11:03:57 | 61.78 MB | |
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13.比例的意义和基本性质.mp4 | 2022-05-25 11:03:57 | 94.89 MB | |
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130 倍数与因数.mp4 | 2022-05-25 11:03:57 | 63.53 MB | |
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131 比较圆形的面积.mp4 | 2022-05-25 11:03:57 | 76.38 MB | |
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132 认识底和高.mp4 | 2022-05-25 11:03:57 | 69.66 MB | |
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133 露在外面的面.mp4 | 2022-05-25 11:03:57 | 81.09 MB | |
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134 倒数.mp4 | 2022-05-25 11:03:57 | 68.05 MB | |
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135 圆的面积（二）.mp4 | 2022-05-25 11:03:57 | 77.65 MB | |
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136 解决问题的策略-列表法.mp4 | 2022-05-25 11:03:57 | 77.98 MB | |
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137 圆的周长.mp4 | 2022-05-25 11:03:57 | 83.85 MB | |
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138 解决问题的策略-画线段法.mp4 | 2022-05-25 11:03:57 | 80.68 MB | |
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139 圆柱的体积.mp4 | 2022-05-25 11:03:57 | 83.84 MB | |
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14.正比例.mp4 | 2022-05-25 11:03:57 | 107.28 MB | |
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140 圆柱的认识.mp4 | 2022-05-25 11:03:57 | 73.39 MB | |
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15. 万以内的加法和减法-加法.mp4 | 2022-05-25 11:03:57 | 114.84 MB | |
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16-万以内的加减法-减法.mp4 | 2022-05-25 11:03:57 | 119.68 MB | |
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17. 混合运算-含有乘法和加减法的混合运算.mp4 | 2022-05-25 11:03:57 | 105.63 MB | |
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18.多位数乘一位数-笔算乘法-不进位.mp4 | 2022-05-25 11:03:57 | 92.36 MB | |
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19.多位数乘一位数-笔算乘法-进位.mp4 | 2022-05-25 11:03:57 | 97.65 MB | |
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20.长方形与正方形的周长.mp4 | 2022-05-25 11:03:57 | 87.7 MB | |
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21. 除数是一位数的除法.mp4 | 2022-05-25 11:03:57 | 124.69 MB | |
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22.两位数乘两位数-笔算乘法.mp4 | 2022-05-25 11:03:57 | 85.7 MB | |
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23.长方形和正方形的面积.mp4 | 2022-05-25 11:03:56 | 97.2 MB | |
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24.简单的小数加减法p].mp4 | 2022-05-25 11:03:57 | 82.3 MB | |
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25.含有括号的混合运算.mp4 | 2022-05-25 11:03:56 | 71.7 MB | |
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26.三位数乘两位数.mp4 | 2022-05-25 11:03:57 | 76.78 MB | |
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27、除数是两位数的除法（说课）.mp4 | 2022-05-25 11:03:56 | 124.37 MB | |
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28、加法的交换律（说课）.mp4 | 2022-05-25 11:03:57 | 134.47 MB | |
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29.乘法运算定律.mp4 | 2022-05-25 11:03:57 | 132.45 MB | |
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30.乘法分配律.mp4 | 2022-05-25 11:03:57 | 80.66 MB | |
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31.小数点移动引起小数大小变化的规律.mp4 | 2022-05-25 11:03:56 | 157.07 MB | |
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32.小数加减混合运算.mp4 | 2022-05-25 11:03:57 | 138.18 MB | |
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33.认识三角形.mp4 | 2022-05-25 11:03:56 | 87.6 MB | |
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34.小数加减法.mp4 | 2022-05-25 11:03:57 | 113.62 MB | |
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35.小数乘整数.mp4 | 2022-05-25 11:03:57 | 120.53 MB | |
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36.小数乘整数.mp4 | 2022-05-25 11:03:57 | 96.13 MB | |
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37.除数是小数的整数除法.mp4 | 2022-05-25 11:03:57 | 128.55 MB | |
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38. 除数是小数的小数除法.mp4 | 2022-05-25 11:03:56 | 85.32 MB | |
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39.一个数除以小数.mp4 | 2022-05-25 11:03:57 | 83.49 MB | |
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40.循环小数.mp4 | 2022-05-25 11:03:58 | 119.08 MB | |
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41.用字母表示数.mp4 | 2022-05-25 11:03:57 | 89.81 MB | |
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42.列方程解决问题.mp4 | 2022-05-25 11:03:56 | 78.47 MB | |
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43.平行四边形的面积.mp4 | 2022-05-25 11:03:57 | 95.98 MB | |
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44.三角形的面积.mp4 | 2022-05-25 11:03:57 | 94.81 MB | |
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45.梯形的面积.mp4 | 2022-05-25 11:03:57 | 105.2 MB | |
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46. 掌握2,5倍数的特征.mp4 | 2022-05-25 11:03:57 | 88.67 MB | |
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47.分数的基本性质.mp4 | 2022-05-25 11:03:57 | 99.82 MB | |
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48.通分.mp4 | 2022-05-25 11:03:57 | 98.16 MB | |
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49.同分母分数加减法.mp4 | 2022-05-25 11:03:57 | 91.83 MB | |
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50.异分母分数加减法.mp4 | 2022-05-25 11:03:57 | 91.44 MB | |
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51.长方体和正方体的表面积.mp4 | 2022-05-25 11:03:57 | 111.75 MB | |
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52、圆的周长（说课）.mp4 | 2022-05-25 11:03:57 | 237.84 MB | |
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53.圆锥的体积.mp4 | 2022-05-25 11:03:57 | 102.19 MB | |
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54.长方体和正方体的体积.mp4 | 2022-05-25 11:03:57 | 102.53 MB | |
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55.分数乘整数.mp4 | 2022-05-25 11:03:57 | 93.11 MB | |
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58.面积的意义和面积的单位.mp4 | 2022-05-25 11:03:57 | 139.58 MB | |
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59.圆的面积.mp4 | 2022-05-25 11:03:57 | 115.02 MB | |
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60.分数除法-一个数除以分数.mp4 | 2022-05-25 11:03:57 | 98.01 MB | |
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61. 倒数的认识.mp4 | 2022-05-25 11:03:56 | 100.12 MB | |
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62.圆的认识.mp4 | 2022-05-25 11:03:56 | 96.12 MB | |
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63.质数和合数.mp4 | 2022-05-25 11:03:56 | 106.44 MB | |
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64. 真分数和假分数.mp4 | 2022-05-25 11:03:57 | 119.3 MB | |
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65.最大公因数.mp4 | 2022-05-25 11:03:56 | 110.93 MB | |
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66. 三角形的内角和5.mp4 | 2022-05-25 11:03:57 | 91.99 MB | |
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67. 圆柱的体积.mp4 | 2022-05-25 11:03:57 | 105.89 MB | |
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68. 平均数.mp4 | 2022-05-25 11:03:56 | 99.59 MB | |
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69.体积和体积单位.mp4 | 2022-05-25 11:03:57 | 110.6 MB | |
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72.两点间的距离和点到直线的距离.mp4 | 2022-05-25 11:03:57 | 89.22 MB | |
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73.三位数除以一位数.mp4 | 2022-05-25 11:03:57 | 116.7 MB | |
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75.植树问题.mp4 | 2022-05-25 11:03:56 | 116.15 MB | |
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76.万以上数的认识.mp4 | 2022-05-25 11:03:57 | 112.17 MB | |
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77.小数的意义.mp4 | 2022-05-25 11:03:57 | 118.84 MB | |
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78.分数和除法的关系.mp4 | 2022-05-25 11:03:57 | 87.63 MB | |
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79.小数的性质.mp4 | 2022-05-25 11:03:57 | 95.06 MB | |
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80.分数乘整数.mp4 | 2022-05-25 11:03:57 | 91.3 MB | |
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81.公顷和平方千米.mp4 | 2022-05-25 11:03:57 | 134.93 MB | |
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82. 快捷的物流运输.mp4 | 2022-05-25 11:03:57 | 84.97 MB | |
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83.平行四边形和梯.mp4 | 2022-05-25 11:03:56 | 73.99 MB | |
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84.长方形和正方形的认识.mp4 | 2022-05-25 11:03:57 | 77.9 MB | |
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85. 几分之一.mp4 | 2022-05-25 11:03:57 | 80.16 MB | |
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86.位置与变换.mp4 | 2022-05-25 11:03:57 | 73.13 MB | |
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87. 时分秒的认识.mp4 | 2022-05-25 11:03:57 | 79.15 MB | |
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88.数学广角集合.mp4 | 2022-05-25 11:03:57 | 74.11 MB | |
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89. 复式统计表.mp4 | 2022-05-25 11:03:57 | 65.41 MB | |
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90.数学广角-搭配.mp4 | 2022-05-25 11:03:57 | 76.49 MB | |
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91 面积单位间的进率.mp4 | 2022-05-25 11:03:57 | 67.36 MB | |
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92 两、三位数除以一位数.mp4 | 2022-05-25 11:03:57 | 77.99 MB | |
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93 三位数除以一位数.mp4 | 2022-05-25 11:03:57 | 74.02 MB | |
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94 求解万以上数的近似数.mp4 | 2022-05-25 11:03:57 | 99.37 MB | |
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95 条形统计图.mp4 | 2022-05-25 11:03:57 | 86.06 MB | |
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96 混合运算.mp4 | 2022-05-25 11:03:57 | 87.23 MB | |
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97 角的分类.mp4 | 2022-05-25 11:03:57 | 69.57 MB | |
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98 加法运算律.mp4 | 2022-05-25 11:03:57 | 73.7 MB | |
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99 数学广角-鸡兔同笼.mp4 | 2022-05-25 11:03:56 | 82.45 MB |