This document is a lesson about telling time and time concepts taught by Teacher Spencer. It includes: - Explanations of analog clock faces and how to read hours and minutes - Examples of ways to express times like "ten past ten" or "half past one" - Conversions between 12-hour and 24-hour time - Calculations involving adding and converting units of time like minutes to hours or hours to days - Practice problems for students to convert between times and time units.

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TIME
by Teacher Spencer

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What time do you wake up?

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What time do you go to school?

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What time do you eat your
lunch?

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What time do you go home?

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What time do you sleep?

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The hands of the Clock
Minute
hand

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What
time is it?

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0:00 6:00 9:00 12:00 15:00 21:00 0:00
AM PM

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Units of Time
The numbers from 1 to
12 are used to count
the hours.
The small lines
between each number
stand for minutes.
Hours
Minutes

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There are 60 minutes in
the face of a clock.
The Minute hand
it takes 1 hour to go
round the clock face
once.

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The minute hand takes 5 minutes to
go from one number to the next.
5
5 x 1 = 5

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10
5 x 2 = 10

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25
5 x 5 = 25

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35
5 x 7 = 35

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One Hour
60 minutes5 x 12 = 60

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Hour hand –
it tells us the hour.
it takes one hour to
move from one
number to the next.

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Past
READING TIME

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to

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pastto

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Examples
10:10 AM Ten past ten.

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Two o’clock2:00

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1:30 Half past one

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0011 0010 1010 1101 0001 0100 1011Tell me the
Time

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Ten past eleven

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Twenty past six.

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Quarter past six
fifteen past six

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A quarter to seven.

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Five to seven

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Twenty to nine

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A quarter to nine

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Twenty-five past ten

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Time Conversion
1 week = 7 days
1 day = 24 hours
1 hour = 60 minutes
1 minute = 60 seconds

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What’s the difference
between the 12 hour
time and the 24 hour
time?

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12 hour-time
12 : 00 midnight 24 : 00 hours
4 : 00 AM 4:00 hours
8 : 00 AM 8:00 hours
12 : 00 noon 12:00 hours
3 : 00 PM 15:00 hours
8 : 00 PM 20 : 00 hours
12 : 00 midnight 24 : 00 hours
24 hour-time

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Converting Time
How many seconds are there
in 15 minutes?
15 minutes =
1 minute
60 seconds
15 x 60 seconds = 900 seconds

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30 minutes = _______ hour
30 minutes =
1 hour
60 minutes
30
60
hour
1
2
½ hour

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Try This!
How many hour/s are there in 30 minutes?
How many day/s are there in 48 hours?
How many minutes are there in
3 ½ hours?

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How many hour/s are there in 30
minutes?
30 minutes =
60 minute
1 hour
30 x 1 hour
60
½ hour

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How many day/s are there in 48 hours?
48 hours =
24 hours
1 day
48 x 1 day
24
2 days

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3 ½ hours =
1 hour
60 minutes
3 ½ x 60 minutes 210 minutes
How many minutes are there in
3 ½ hours?

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Addition of Time
I f we are going to add time, we
add the hours by hours and
minutes by minutes.

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3 hours 45 minutes
+
1 hour 50 minutes
What is 3 hours and 45 minutes + 1
hour and 50 minutes?
95 minutes
– 60 minutes
1 hour 35 minutes
1 hour
minutes35hours5

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Add 1 hour 5 minutes to 2 hours
42 minutes.
1 hour 5 minutes
+
2 hours 42 minutes
3 hours 47 minutes

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3 hours 18 minutes
+
3 hours 3 minutes
6 hours 21 minutes

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50 25 55 30 15
O
I
F
S
E
A
H
N
B
U
M
T
5 15
10 45 35
M A T H S
I S
F U N

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0011 0010 1010 1101 0001 0100 1011Thank you!