The document discusses different types of clocks and how to tell time. It covers analog clocks, which use hands to indicate the hour, minutes, and seconds. It also covers digital clocks, which display time numerically. Finally, it discusses units of time like minutes, hours, days, weeks, months, years, centuries, and millennia.

1. Mathematics
TIME
Part 1
Objectives
The Clock

2. The Clock
The clock is used to tell time and measure
time.
• There are 2 types of clocks:
The Digital clock
The Analog clock

3. The Analog Clock
• An analog clock is a tool for reading the
time of day.
• The shortest hand indicates the hour.
• The longer hand indicates the minutes.
• The longest arm indicates the seconds.
• You can go to LearnAlberta.ca for look
at the actual analog clock.

4. The Analog Clock
Learn the
hands of
the clock.

5. The Digital Clock
A digital clock displays the time in numbers,
rather than by clock hands.
It tells you the exact time.
A digital clock can easily be incorporated into
any electronic device.
A digital clock uses numbers 0 - 23 or 1 - 12 to
display the hour.

6. The Digital Clock
A digital clock uses numbers 0 - 23 or
1 - 12 to display the hour.

7. The Clock Hands
One complete turn takes 12 hours
One complete turn takes 60 minutes
One complete turn takes 60 seconds

8. The Numbers in a Clock
Look at the incomplete clock. Study
the numbers and what it mean.

9. Units of Time
60 seconds = 1 minute.
60 minutes = 1 hour.
24 hours = 1 day.
7 days = 1 week.
12 months = 1 year.
100 years = 1 century.
10 centuries = 1 millennium.

10. Units of Time
Time

11. The Time of Day

12. The Time of Day
AM: It represents time from midnight to noon.
(12:00 AM to 11:59 AM).
For example: If you say that you have to go to school at 8:00 AM,
it means 8 O'clock in the morning.
PM: It represent time from noon to just before midnight.
(12 Pm to 11:59 PM).
For example: If you say that you have to have dinner at 7:00 PM, it
means 7 O'clock in the night.

13. The Time of Day

14. Minutes
On the analog clock, each number represent 5 minutes.
Therefore, if the long hand is on 4, it really means 25
minutes past the hour.
When counting minutes, each number will be multiplied
by 5 as indicated by the smaller numbers on the clock.