比较分数（9岁以上）
Comparing fractions (age 9+)
通过创建公分母或公分子，或与1/2这样的基准进行比较，来比较和排序具有不同分子和分母的分数；并用直观模型验证结论。
Compare and order fractions with different numerators and denominators by creating common denominators/numerators or comparing to a benchmark such as 1/2; justify conclusions with visual models
学习证据 / Evidence
- 通过找到公分母24来比较3/8和5/12
- 将2/3、3/5和7/10从小到大排序
- 使用基准1/2来判断5/8 > 3/7
- Compare 3/8 and 5/12 by finding a common denominator of 24
- Order 2/3, 3/5, and 7/10 from smallest to largest
- Use the benchmark 1/2 to decide that 5/8 > 3/7
评估问题 / Assessment
如果{{name}}已经吃了午餐的2/3，而一个朋友吃了他们的3/4，他们能否通过找到一种共同的比较分数的方法来算出谁吃得多？
If {{name}} has eaten 2/3 of their lunch and a friend has eaten 3/4 of theirs, can they work out who's eaten more — by finding a common way to compare the fractions?