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What time is it?
Discover Mathematics: Chapter 7
GoalTell and write the time to the hour on a clock with hands and on a digital clock.
New words
hour · one part of the day, for example 3 o’clockshort hand · points to the hourlong hand · points to 12 on an o’clock timedigital clock · shows time with numbers, like 3:00
Explanation
A clock has two hands. The short hand tells the hour. The long hand tells the minutes. When the long hand points straight up to 12, the time is exactly an o’clock time. Look at the clock: the short hand points to 3, so it is 3 o’clock. A digital clock shows the same time with numbers. It writes 3:00. The first number is the hour, and the 00 means exactly on the hour.
Worked examples
Hossam wakes up when the short hand points to 7. It is 7 o’clock. A digital clock shows 7:00.
School starts at 8 o’clock. The long hand points up to 12 and the short hand points to 8.
Hana has dinner at 6 o’clock. The short hand points down to 6.
Class activity
Clock helper. Make a paper clock with two hands you can turn. Ask the child to show 9 o’clock, 12 o’clock and 4 o’clock. Then name a daily event, such as breakfast or bedtime, and ask which o’clock it happens in your home.
Practice
1
What time does the clock show?
2 o’clock
2
What time does the clock show?
9 o’clock
3
It is 5 o’clock. Where does the short hand point?
To the 5
4
At 12 o’clock, where do both hands point?
Both point up to the 12.
5
A digital clock shows 4:00. What time is it?
4 o’clock