数轴上的分数
Fractions on a number line
运用四则运算解决涉及距离、时间间隔、液体体积、质量和钱数的分数或小数应用题；能用包括数轴在内的图形表示。
Solve word problems involving distances, time intervals, liquid volumes, masses, and money using the four operations with fractions or decimals; represent with diagrams including number lines
学习证据 / Evidence
- 一袋2.5千克的面粉被平均分成4份，每份重多少？
- 一段路程需要1小时45分钟；如果09:20出发，会在什么时间到达？
- 三条丝带分别长0.75米、1.2米和0.95米，总长度是多少？
- A 2.5 kg bag of flour is split equally into 4 portions — what does each weigh?
- A journey takes 1 hr 45 min; what time do you arrive if you leave at 09:20?
- Three ribbons of 0.75 m, 1.2 m, and 0.95 m — what is the total length?
评估问题 / Assessment
如果{{name}}计划步行4.5公里，已经走了1.75公里，{{name}}能算出还剩多远，并估计剩余路程可能需要多长时间吗？
If {{name}} is planning a 4.5 km walk and has already walked 1.75 km, can they work out how far is left — and estimate how long the remaining walk might take?