Chrome，
QQ浏览器
关于此实验
主题
- 分数
- 等值分数
- 带分数
描述
在这个分数游戏中匹配形状和数字来赚取星星。在任何你喜欢的程度上挑战你自己。尝试收集大量的星星！
示范 学习目标
- 查找匹配使用数字和图片找到匹配的分数。
- 使用不同的数字给出相同的分数。
- 在不同的图像模式中匹配不同的分数。
- 使用数字和模式比较分数。
标准对齐
Common Core - Math
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.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.
3.NF.A.2
Understand a fraction as a number on the number line; represent fractions on a number line diagram.
3.NF.A.2a
Represent a fraction 1/b on a number line diagram by defining the interval from 0 to 1 as the whole and partitioning it into b equal parts. Recognize that each part has size 1/b and that the endpoint of the part based at 0 locates the number 1/b on the number line.
3.NF.A.2b
Represent a fraction a/b on a number line diagram by marking off a lengths 1/b from 0. Recognize that the resulting interval has size a/b and that its endpoint locates the number a/b on the number line.
3.NF.A.3
Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size.
3.NF.A.3a
Understand two fractions as equivalent (equal) if they are the same size, or the same point on a number line.
版本 1.2.1
