数轴上的数
Numbers on a number line
通过以分钟为单位进行时间间隔的加减运算，解决涉及经过时间的应用题，包括使用数轴。
Solve word problems involving elapsed time by adding and subtracting time intervals in minutes, including using a number line
学习证据 / Evidence
- 一部电影在2:15开始，时长为47分钟——什么时候结束？
- 计算从9:20到10:05经过了多少分钟。
- 用数轴表示两个事件之间经过的时间。
- A film starts at 2:15 and lasts 47 minutes — when does it end?
- Calculate how many minutes between 9:20 and 10:05
- Use a number line to show the elapsed time between two events
评估问题 / Assessment
如果{{name}}下午3:20开始足球训练，训练持续75分钟，能借助数轴算出结束时间吗？
If {{name}} starts football practice at 3:20 p.m. and it lasts 75 minutes, can they work out what time it finishes — using a number line to help?