# time - Normanton On Soar Primary School

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THIRD SPACE
LEARNING
HELLO!
Today we are going to revise time
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THIRD SPACE
LEARNING
Arithmetic Warm Up
Fill in the box with a =, < or > symbol fo make the statement true
in hours and minutes?
1. 24 days 10 weeks
2, 1month 240 hours
3 What is 644 minutes hours minutes
You are revising time (Meeting Ÿ6 expectations)
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THIRD SPACE
LEARNING
Revision on time
Today we are going to revise how to
69 read, write and convert between analogue and digital clocks
63 solve time problems
You are revising time (Meeting Y& expectations)
12 and 24 hour time
Main differences between writing times in 24-hour and 12-hour clock
11:10 11:10 AM 2 Zero in front
— 24hourclock 12 hour clock
0510 ЭЛОАМ
14:10 2:10PM
| Numbers 0-23 Numbers 1-12
No zeroes in front
12:10 12:10 PM 3 No AM or PM AM and PM
13:10 1:10 PM
| 14:10 2:10 PMI
15:10 3:10 PM >
Convert these to either 12 or 24 hour times
11:10 = 9:10pm =
You are revising time (Meeting Y& expectations)
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THIRD SPACE Revision: Solving time problems
Match each time problem with the correct calculation you need to do
and write what unit each answer would be in.
1 | Milly takes 11 seconds to |
do one sum. How long does 11 - 8 = Units:
it take her to do 8 sums?
Ella runs for 8 minutes then | 8 x 11 - Units:
2 | walks for 11 minutes. How |
long is this altogether?
Ben gets on the bus at |
10.08 and gets off again | 8+11= Units:
at 10.11. How long was he
on the bus for?
You are revising time (Meeting Y& expectations)
ro sce Revision: Solving time problems
LEARNING
Jenny leaves the house at 09.36 and arrives at her friend’ s house
at 10.18. How many minutes did it take her?
What are the important words and numbers in the question?
What units are in the question?
What units do we need for the answer?
What calculation do we need to do?
A time line, like a
number line, can be
You cannot subtract times 1018 useful when finding
- 09:36 durations or to check
to find the difference. 00:82 our answer.
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+4 + 30 +8
09:36 09:40 10:10 10:18 mins
You are revising time (Meeting Y6 expectations)
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ww Question 2
THIRD SPACE
LEARNING
1. What do you notice?
2. What do you know?
3. Can you show your working out?
7 Complete
—
4. How could you extend the
question?
3
A clock shows 13:25 and IS 7 hour slow.
Write the actual time in 12 hour time.
You are revising time (Meeting Y& expectations)
&
ww Question 3
THIRD SPACE ь
TEE À Complete
1. What do you notice?
& What do you know?
3. Can you show your working out?
4. How could you extendthe
question?
7
Here is part of the bus timetable from Riverdale to Mott Haven.
Riverdale 10:02 | 10:12 | 10:31 | 10:48 — Tr
Kingsbridge 10:11 | 10:21 | 10:38 | 10:55
Fordham 10:28 10:38 10:54 11:11
Tremont 10:36 10:44 11:00 11:17
Mott Haven 10:53 11:01 11:17 11:34
How many minutes does it take the 10:31 bus from Riverdale to | minutes
reach Mott Haven?
Mr Evans is at Fordham at 10:30
What is the earliest time he can reach Tremont on the bus? |
You are revising time (Meeting Y& expectations)
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THIRD SPACE
LEARNING Let's review:
63 read, write and convert between analogue and digital clocks
63 solve time problems
Draw a circle around the smiley face to show how you feel about what we ve just been doing.
You are revising time (Meeting Y& expectations)
- CHALLENGE
THIRD SPACE
LEARNING
1. What do you notice?
2. What do you know?
3. Can you show your working out?
4. How could you extend the
question?
7 Use the space provided to complete
the following question.
Here is part of the timetable for Class 6 on a Monday.
am pm
10:35 10:55 11:45 12:20 1:15 2:15
break | History Science | lunch
Look at the timetable.
How long is it from the end of break to the start of lunch?
\
You are revising time (Meeting Y& expectations)
60 minutes in an hour
How many minutes in half an hour?
You are revising time (Meeting Y& expectations)
Converting units
Complete these time conversions.
+ minutes to seconds X by 60.
+. secondsto minutes — by 60.
* hours to minutes X by 60.
» Minutes to hours — Бу
» weeks to days IN by
» days to weeks IN by
+ yearsto months o by
» months to years I by
You are revising time (Meeting Y& expectations)
Converting units
Hi
Try these:
1 5 weeks = days
2. 180 seconds = BN minutes
3... 5 minutes = seconds
4 84 days = weeks
5. 6years= months
You are revising time (Meeting Ÿ6 expectations)
Converting 12-hour clock to 24-hour clock
The rules: For the first hour of the day (12 midnight to 12.59am), subtract 12 hours.
12-hour clock 24-hour clock
12 midnight | 00.00
12.18am 00.18
12.59am
From 100am to 12.59pm, no change except to take off the am or pm and make
sure time is written as 4 digits.
12-hour clock 24-hour clock
11.54am | 11.54
9.06am 09.06
3.58am
You are revising time (Meeting Y6 expectations)
Converting 12-hour clock to 24-hour clock
From 1.00pm to 11.59pm, add "12° to the hour and take off
the pm.
12-hour clock
1.00pm
6.38pm
9.15pm
1+12=13
6 + 12 = 18
24-hour clock
13.00
You are revising time (Meeting Y& expectations)
Converting 24-hour clock to 12-hour clock
The rules:
For the first hour of the day (00.00 to 00.59), add 12 hours and write “am”.
From 01.00 to 11.59 no change except to add am and, if the first digit is zero,
take that off.
24-hour clock
00.18
0045
12-hour clock
12.18am
24-hour clock
10.07
01.32
09.58
12-hour clock
10.07am
1.32am
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You are revising time (Meeting Y& expectations)
Converting 24-hour clock to 12-hour clock
From 12.00 to 12.59, just add ‘pm’.
24-hour clock
12.00
12.47
12-hour clock
12.00pm
From 13.00 to 23.59, subtract 12 hours and add “pm.
24-hour clock
14.33
18.19
23.59
14 - 12 = 2
18 - 12
12-hour clock
2.33pm
You are revising time (Meeting Y& expectations)
2.
Practice time
Match these times with the times on the 12-hour clock.
Quarter past seven in the morning 12.15pm
Quarter past noon 12.15am
Quarter past midnight
Quarter past seven in the evening
You are revising time (Meeting Y& expectations)
.»
“я Question 1
THIRD SPACE
LEARNING
1. What do you notice?
2. What do you know?
3. Can you show your working out? 7)
4. How could you extendthe
. y
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Pr
# Complete
sers
a
James has a watch that shows analogue time in the
evening.
Ann has a digital watch that shows the same time using
24-hour clock. What does her watch show?
You are revising time (Meeting Y6 expectations)
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