Page 32 - 新思维数学学生用书4 样章

2.2 Timetables and time intervals

2.2 Timetables and time intervals

We are going to ...

• read a timetable to solve problems

• choose and use suitable units to calculate time intervals.

It is important to know how to tell the time and be able to read a calendar

and a timetable. It can help you to catch a train, bus, plane or boat on time.

For example, it is no good arriving at the station just as the train is leaving.
Understanding time and timetables helps you to know if you will get to an

important event on time.
calendar time interval
Worked example 2 leap year timetable

Here is a coach timetable.

Which coach completes the journey to Corbury in the shorter time?

Anbury 09:09 10:10

Babury 09:24 10:26
Corbury 09:45 10:48

Use a time line.

You can work out the time taken between each stop and add them up.

Or you can work out the time taken 15 mins 21 mins

between the start and the end.

Compare the times to decide
which coach takes the shorter time. 09:09 09:24 09:45
15 mins + 21 mins = 36 mins

38 mins
The 09:09 coach takes 36 minutes.

The 10:10 coach takes 38 minutes.
10:10 10:48

Answer: The 09:09 coach takes the shorter time.

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