Chrome，
QQ浏览器
关于此实验
主题
- 分数
- 等值分数
- 带分数
描述
在这个分数游戏上或者探究这个分数实验从形状和数字上思考去得到分数来赢得奖励星。选择任何你喜欢的等级去挑战你自己。试着去收集更多的奖励星。
示范 学习目标
- 用数字和图片建立相等的分数
- 用数字和图案比较分数
- 熟悉相同的简化之后的分数和没有化简的分数
- 注意：建立一个分数的方法在分数介绍和分数匹配程序里都有详细叙述或者可以用独立的工具。
标准对齐
Common Core - Math
1.G.A.3
Partition circles and rectangles into two and four equal shares, describe the shares using the words halves, fourths, and quarters, and use the phrases half of, fourth of, and quarter of. Describe the whole as two of, or four of the shares. Understand for these examples that decomposing into more equal shares creates smaller shares.
2.G.A.3
Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.
3.G.A.2
Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole. For example, partition a shape into 4 parts with equal area, and describe the area of each part as 1/4 of the area of the shape.
3.NF.A.1
Understand a fraction 1/b as the quantity formed by 1 part when a whole is partitioned into b equal parts; understand a fraction a/b as the quantity formed by a parts of size 1/b.
版本 1.0.12
