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1st Grade
Time
2015-11-30
www.njctl.org
Slide 3 / 177
Table of Contents click on the topic to go to that section
· Numbers on a Clock
· The Hour Hand· The Minute Hand· Time to the Hour· Digital Time to the Hour
· Time to the Half-Hour· Time to the Half-Hour Pt. 2· Digital Time to the Half Hour· Combination of Time
· Lab: I Have Who Has
· Lab: Time Memory
· Lab: Analog Paper Clock
Slide 4 / 177
Standards for Mathematical Practices
MP 8 Look for and express regularity in repeated reasoning.
MP 1 Make sense of problems and persevere in solving them.
MP 2 Reason abstractly and quantitatively.
MP 3 Construct viable arguments and critique the reasoning of others.
MP 4 Model with mathematics.
MP 5 Use appropriate tools strategically.
MP 6 Attend to precision.
MP 7 Look for and make use of structure.
Click on each standard to bring you to an example of how to meet
this standard within the unit.
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Numbers on a Clock
Click to return to Table of Contents
Slide 6 / 177
KWhat do you know?
WWhat do you want to know?
LWhat did you learn?
Time and Clocks
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There are different ways to represent time.
6:00
6 o' clock
12 12
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9
10
11
Time
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Analog Clock
Click to return to Table of ContentsClick for more information.
Slide 9 / 177
1 What number is missing?
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9
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2 What number is missing?
12
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5678
9
10
1211
Slide 11 / 177
3 What number is missing?
12
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5678
9
10
1211
Slide 12 / 177
4 What number goes where the ? is?
3
6
9
12 ?
Slide 13 / 177
5 What number goes where the ? is?
3
6
9
12
?
Slide 14 / 177
Slide 15 / 177 Slide 16 / 177
The Hour Hand
Click to return to Table of Contents
Slide 17 / 177
Hands on a Clock
There are three hands on a clock:- hour hand
- minute hand- second hand
The minute hand is the longer hand. It takes 60 minutes for the minute hand to move all the way around the clock.
The second hand is very skinny and long. It moves quickly. It only takes 1 minute for it to go all the way around.
The hour hand is the smallest hand. It moves very slow. It takes 12 hours for it to move all the way around the clock.
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The hour hand shows the hour.The hour hand is the shortest hand on the clock.
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HourHand
HourMark
The Hour Hand
Slide 19 / 177
12
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8
9
10
1211All hands on a clock always
move to the right. This is called
clockwise.
It takes the hour hand 1 hour to move from one hour mark to the next.
Clockwise Rotation
Slide 20 / 177
12
3
45
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9
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1211
When the hour hand points directly at a number, it is the start of a new hour. We say ____ o'clock.
2 o'clock
The Hour Hand
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12
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Slide 22 / 177
12
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5678
9
10
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When the hour hand is a little before a number, it isalmost the start of a new hour. We say it is almost
_____ o'clock.
Almost 2 o'clock
The Hour Hand
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12
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9
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Slide 24 / 177
12
3
45
678
9
10
1211
When the hour hand is a little after a number, the new hour started just a little bit ago. We say it is a
little after _____ o'clock.
A little after 2 o'clock
The Hour Hand
Slide 25 / 177
12
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5678
9
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1211
Slide 26 / 177
12
3
45
678
9
10
1211
When the hour hand is between two numbers, the hour is half past the hour. We say it is half-past _____ o'clock.
Half-past 2 o'clock
The Hour Hand
Slide 27 / 177
12
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5678
9
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1211
Slide 28 / 177
Paper Clocks to the Hour
Slide 29 / 177
6 What time is it?
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9
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A Almost 2 o'clock
B A little after 2 o'clock
C 2 o'clock
Slide 30 / 177
7 What time is it?
12
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9
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1211
A Almost 4 o'clock
B A little after 4 o'clock
C 4 o'clock
Slide 31 / 177
8 What time is it?
12
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8
9
10
1211
A Almost 7 o'clock
B A little after 7 o'clock
C Half past 7 o'clock
Slide 32 / 177
9 What time is it?
12
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8
9
10
1211
A Almost 12 o'clock
B A little after 12 o'clock
C Half past 11 o'clock
Slide 33 / 177
10 What time is it?
12
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8
9
10
1211
A 9 o'clock
B A little after 9 o'clock
C Almost 9 o'clock
Slide 34 / 177
Slide 35 / 177 Slide 36 / 177
The Minute Hand
Click to return to Table of Contents
Slide 37 / 177
The minute hand tells the minutes.The minute hand is the longer hand on the clock.
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9
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1211MinuteHand
The Minute Hand
Slide 38 / 177
12
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5678
9
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1211
Paper Clocks Practice
Slide 39 / 177
When the HOUR hand is pointing right to a number, the MINUTE hand will be pointing at the 12. When the minute
hand is at the 12, we say ____ o'clock.
12
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8
9
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1211
4 o'clock
PracticeSlide 40 / 177
12
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Slide 41 / 177
When the HOUR hand is pointing between two numbers, the MINUTE hand will be pointing at the 6. When the minute hand is at the 6, we say half past____ o'clock.
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1211
Half past 4 o'clock
PracticeSlide 42 / 177
12
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1211
Slide 43 / 177
Class Discussion
What is the difference between the minute hand and the hour hand?
Slide 44 / 177
11 Where is the minute hand?
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8
9
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Slide 45 / 177
12 Where is the minute hand?
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8
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1211
Slide 46 / 177
13 Where is the hour hand?
12
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8
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1211
Slide 47 / 177
14 Where is the hour hand?
12
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Slide 48 / 177
15 Where is the minute hand?
12
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8
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1211
Slide 49 / 177 Slide 50 / 177
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Time to the Hour
Click to return to Table of Contents
Slide 52 / 177
We start a new day at 12 o'clock at night.As each minute passes, the hour hand and the minute hand move. The hour hand moves slower than the minute hand.
When the minute hand gets back to the 12 and the hour hand is on the next number we have completed 1 hour.
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Hour
o'clock is what we
say at the start of a new hour
Slide 53 / 177
1
2
3
4
56
7
8
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10
1211
At the start of a new hour, the minute hand is on the 12 and the hour hand points to the new hour.
Hour
Slide 54 / 177
12
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_______ o'clock
What time is it?
Slide 55 / 177
12
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9
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1211
_______ o'clock
What time is it?
Slide 56 / 177
12
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9
10
1211
_______ o'clock
What time is it?
Slide 57 / 177
12
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8
9
10
1211
_______ o'clock
What time is it?
Slide 58 / 177
12
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8
9
10
1211
_______ o'clock
What time is it?
Slide 59 / 177
12
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9
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_______ o'clock
What time is it?
Slide 60 / 177
12
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Show 6 o'clock
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12
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Show 2 o'clock
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Show 4 o'clock
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Show 10 o'clock
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Show 3 o'clock
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Show 1 o'clock
Slide 66 / 177
Class Discussion
Bob set his clock for 8 o'clock. Why is he wrong? How can we make it right?
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16 What time is it?
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A 6 o'clockB 2 o'clockC 8 o'clock
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17 What time is it?
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A 1 o'clock
B 4 o'clock
C 11 o'clock
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18 What time is it?
12
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9
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1211
______ o'clock
Slide 70 / 177
19 What time is it?
12
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9
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1211
______ o'clock
Slide 71 / 177
20 What time is it?
12
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______ o'clock
Slide 72 / 177
Slide 73 / 177 Slide 74 / 177
Digital Time to the Hour
Click to return to Table of Contents
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:Hour Minutes4 00
We can also show time on a digital clock.
Digital Clock
When writing o'clock digitally, we put 00 in the minute
location.
The hour is written before
the colon.
Slide 76 / 177
12
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:Hour Minutes
00
What number is missing?
What Time Is It?
Remember to read 00 as
o'clock
Slide 77 / 177
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:Hour Minutes
00
What Time Is It?
What number is missing?
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:Hour Minutes
00
What number is missing?
What Time Is It?
Slide 79 / 177
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:Hour Minutes
00
What number is missing?
What Time Is It?
Slide 80 / 177
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:Hour Minutes
What Time Is It?
Slide 81 / 177
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What Time Is It?
:Hour Minutes
Slide 82 / 177
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:Hour Minutes
What Time Is It?
Slide 83 / 177
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:Hour Minutes
What Time Is It?Slide 84 / 177
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:Hour Minutes
What Time Is It?
Slide 85 / 177
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:Hour Minutes
What Time Is It?
Slide 86 / 177
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:Hour Minutes
What Time Is It?
Slide 87 / 177
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:Hour Minutes
What Time Is It?Slide 88 / 177
21 Which digital clock shows 6 o'clock?
:
:
:
:
6 6 12
6
12
00006
A B
C D
Slide 89 / 177
22 Which digital clock shows 12 o'clock?
:
:
:
:
00 12 12
12
12
00012
A B
C D
Slide 90 / 177
23 Which digital clock matches the analog clock?
:
:
:
:
9 9 0
9
12
12009
12
3
45
67
8
9
10
1211
A B
C D
Slide 91 / 177
24 Which digital clock shows 2 o'clock?
:
:
:
:
0 00 2
2
2
0020
A B
C D
Slide 92 / 177
25 Which digital clock matches the analog clock?
:
:
:
:
5 5 00
5
12
1205
12
3
45
67
8
9
10
1211
QUIZ
A B
C D
Slide 93 / 177
Lab: Time to the Hour Memory
Students will play memory using time to the hour written in analog, digital and with words. This
game will help them become fluent with telling time to the hour.
Click to return to Table of Contents
Click for more information.
Slide 94 / 177
Slide 95 / 177 Slide 96 / 177
Time to the Half-Hour
Click to return to Table of Contents
Slide 97 / 177 Slide 98 / 177
How about this clock?
1
2
3
45
67
8
9
10
1211
Slide 99 / 177
When we cut the clock in half where does the line stop?
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Time to the Half-Hour
Slide 100 / 177
When telling time to the half hour, the minute hand points to the 6!
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Time to the Half-Hour
Slide 101 / 177
The hour hand points between the two numbers.
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This clock shows half-past 1 o'clock.
Time to the Half-HourSlide 102 / 177
What time is it?
12
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9
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Half-past ________ o'clock.
Slide 103 / 177
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Half-past ________ o'clock.
What time is it?
Slide 104 / 177
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8
9
10
1211
Half-past ________ o'clock.
What time is it?
Slide 105 / 177
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9
10
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Half-past ________ o'clock.
What time is it?
Slide 106 / 177
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9
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Half-past ________ o'clock.
What time is it?
Slide 107 / 177
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Half-past ________ o'clock.
What time is it?
Slide 108 / 177
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Half-past ________ o'clock.
What time is it?
Slide 109 / 177
Paper Clock ActivityUse your paper clock to show the different times written on
this page.
Half-past 7 o'clock
Half-past 2 o'clock
Half-past 9 o'clock
Half-past 10 o'clock
Half-past 3 o'clock
Slide 110 / 177
26 Which clock shows half-past 6 o'clock?
12
3
45
67
8
9
10
1211 12
3
45
67
8
9
10
1211
12
3
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67
8
9
10
121112
3
45
67
8
9
10
1211
A B
C D
Slide 111 / 177
27 Which clock shows half-past 4 o'clock?
12
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45
67
8
9
10
1211 12
3
45
67
8
9
10
1211
12
3
45
67
8
9
10
121112
3
45
67
8
9
10
1211
A B
C D
Slide 112 / 177
28 What time does the clock show?
Half- past _____ o'clock
12
3
45
67
8
9
10
1211
Slide 113 / 177
29 What time does the clock show?
Half- past _____ o'clock
12
3
45
67
8
9
10
1211
Slide 114 / 177
30 What time does the clock show?
Half- past _____ o'clock
12
3
45
67
8
9
10
1211
Slide 115 / 177 Slide 116 / 177
Slide 117 / 177
Time to the Half-Hour Pt. 2
Click to return to Table of Contents
Slide 118 / 177
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5678
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Half-past 1 o'clock
Slide 119 / 177
123
4567
8910
1211
There are 60 minutes in an hour.How many minutes are in a half hour?
There are 5 minutes between each number. We can count each minute or we can count by 5. Which way is quicker?
How many minutes?
Slide 120 / 177
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We can say it is half past 9, since the minute hand went half way around the clock.
We could also say it is nine thirty since 30 minutes have passed since it was 9 o'clock.
How many minutes?
Slide 121 / 177
1
2
3
45
67
8
9
10
1211
Half-past 3 o'clockor
Three-thirty
Can you read the time?
?
Slide 122 / 177
1
2
3
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67
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9
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1211
Half-past 2 o'clockor
Two thirty?
Can you read the time?
Slide 123 / 177
1
2
3
4
56
78
9
10
1211
Half-past 11 o'clockor
Eleven thirty?
Can you read the time?Slide 124 / 177
1
2
3
4
56
78
9
10
1211
Half-past 3 o'clockor
Three thirty?
Can you read the time?
Slide 125 / 177
1
2
3
45
67
8
9
10
1211
Half-past 12 o'clockor
Twelve thirty?
Can you read the time?
Slide 126 / 177
Paper Clocks
Sixthirty
Fourthirty
Twothirty
Half-past5 o'clock
Half-past12 o'clock
Half-past9 o'clock
Tenthirty
Half-past1 o'clock
Slide 127 / 177
31 Which clock shows three thirty?
12
3
45
67
8
9
10
1211
12
3
45
67
8
9
10
1211
12
3
45
67
8
9
10
1211
12
3
45
67
8
9
10
1211
A B
C D
Slide 128 / 177
32 What time is it?
12
3
45
67
8
9
10
1211
A two thirty
B five thirty
C one thirty
D six thirty
Slide 129 / 177
33 What time is it?
12
3
45
67
8
9
10
1211
A Half-past 6 o'clock
B 6 o'clock
C Half-past 12 o'clock
D 12 o'clock
Slide 130 / 177
34 Which clock shows ten thirty?
12
3
45
67
8
9
10
1211 12
3
45
67
8
9
10
1211
12
3
45
67
8
9
10
121112
3
45
67
8
9
10
1211
A B
C D
Slide 131 / 177
35 What time does this clock show?Half-past _____ o'clock
12
3
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8
9
10
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Slide 132 / 177
Slide 133 / 177 Slide 134 / 177
Digital Time to the Half Hour
Click to return to Table of Contents
Slide 135 / 177
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:Hour Minutes4 30
We can also show half hours on a digital clock.
Since there are 30 minutes in a half hour, we write 30 for the minutes.
The hour is written before
the colon.
Slide 136 / 177
12
34
5678
9
10
1211
:Hour Minutes30
What number is missing?
Remember we always write 30
for half hour.
What Time Is It?
Slide 137 / 177
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5678
9
10
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:Hour Minutes1
Remember the hour is always first.
What number is missing?
What Time Is It?
Slide 138 / 177
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5678
9
10
1211
:Hour Minutes
What Time Is It?
Slide 139 / 177
12
34
5678
9
10
1211
:Hour Minutes
What Time Is It?
Slide 140 / 177
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34
5678
9
10
1211
:Hour Minutes
What Time Is It?
Slide 141 / 177
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34
5678
9
10
1211
:Hour Minutes
What Time Is It?
Slide 142 / 177
12
34
5678
9
10
1211
:Hour Minutes
What Time Is It?
Slide 143 / 177
Class Discussion
Karen told her mom it was 7 o'clock. Is she correct? Explain.
:7 30
Slide 144 / 177
36 Which clock shows 5:30?
12
3
45
67
8
9
10
1211 12
3
45
67
8
9
10
1211
12
3
45
67
8
9
10
121112
3
45
67
8
9
10
1211
A B
C D
Slide 145 / 177
37 Which clock shows 12:30?
12
3
45
67
8
9
10
1211
12
3
45
67
8
9
10
1211
12
3
45
67
8
9
10
1211
12
3
45
67
8
9
10
1211
A B
C D
Slide 146 / 177
38 What number is missing?____ : 30
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8
9
10
1211
Slide 147 / 177
39 What number is missing?4 : _____
12
3
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8
9
10
1211
Slide 148 / 177
40 What number is missing?____ : 30
12
3
4567
8
9
10
1211
QUIZ
Slide 149 / 177 Slide 150 / 177
Slide 151 / 177
Combination of Time
Click to return to Table of Contents
Slide 152 / 177
Where is the hour hand when it is the start of a new hour?Where is the minute hand when it is the start of a new hour?
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3
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8
9
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7:00
Slide 153 / 177
Where is the hour hand when it is half past an hour?Where is the minute hand when it is half past an hour?
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3
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8
9
10
1211
7:30
Slide 154 / 177
What is different about the two clocks?
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1211 12
3
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8
9
10
1211
2:00 2:30
Slide 155 / 177
12
3
45
67
8
9
10
1211
Draw the Hands to Show the Time
:2 00
Slide 156 / 177
12
3
45
67
8
9
10
1211
Draw the Hands to Show the Time
:2 30
Slide 157 / 177
12
3
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8
9
10
1211
Write the Time
:
Slide 158 / 177
12
3
4567
8
9
10
1211
Draw the Hands to Show the Time
:8 00Slide 159 / 177
12
3
4567
8
9
10
1211
Write the Time
:
Slide 160 / 177
12
3
45
67
8
9
10
1211
Draw the Hands to Show the Time
:11 00Slide 161 / 177
12
3
4567
8
9
10
1211
Write the Time
:
Slide 162 / 177
12
3
4567
8
9
10
1211
Draw the Hands to Show the Time
:3 30
Slide 163 / 177
12
3
45
67
8
9
10
1211
Draw the Hands to Show the Time
:12 30
Slide 164 / 177
12
3
45
67
8
9
10
1211
Write the Time
:
Slide 165 / 177
12
3
45
67
8
9
10
1211
Draw the Hands to Show the Time
:4 30
Slide 166 / 177
12
3
45
67
8
9
10
1211
Write the Time
:
Slide 167 / 177
12
3
4567
8
9
10
1211
Draw the Hands to Show the Time
:9 00
Slide 168 / 177
1
2
3
4
56
78
9
10
1211
Write the Time
:
Slide 169 / 177
41 What time is it?
123
4567
8910
1211
A 8:00
B 12:30
C 8:30
D 8:12
Slide 170 / 177
42 What time is it?7: ______
123
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1211
Slide 171 / 177
43 What time is it?5: _______
123
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1211
Slide 172 / 177
44 What time is it?
123
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8910
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A 1:00
B 1:30
C 3:00
D 6:10
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45 What time is it?4: _______
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Lab: I have... Who has...~ Print one set of "I have" game cards (located under labs).
~ Cut apart and laminate them. ~ Mix up the cards and then pass out ALL cards (some
students may have more than 1). ~ Have the students read their cards so that they are familiar
with which ones they have. ~ The student who has the clue card that says I have the first
card will begin the game by reading aloud his or her card. ~ After the first card is read aloud, the students with the
answer to the clue reads aloud his or her card. ~ Students continue reading until they get back to the first
card.
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