NCERT Solutions Class 3 Maths Chapter 13 Time Goes on

F R E E S T U D Y M AT E R I A L F O R E V E R Y S T U D E N T

C L A S S 3 · M AT H S

NCERT Solutions + ×
Chapter 13: Time
Goes On

NCERT Textbook — Maths Mela

BOOK PAGES SECTIONS QUESTIONS MEDIUM

165 – 176 14 38 English

Every question Step by step Exam ready
Activities, in-text questions The working shown, not Written to match how
and all exercises. just the final answer. marks are awarded.

Solutions, notes, sample papers & more at 43 pages

l h h e i e e A aS m · NCERT So ut ons
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C L A SS 3 · M AT H S · M AT H S M E L A
NCERT So ut ons — C apt r 13: T m Go s On
l i h e i e e

This chapter is about time. You make a calendar, count days, weeks and months, read a birth certificate, and
learn to tell the time on a clock.

T E XT B OOK B OOK PAGE S
Ma h Mela Cla
t s ss 3 165  176

S EC T I ONS QU E ST I ONS
14 38

M EDI UM
English

Let us Do — Page 166
Make he cale da f
t n r or t he month of J l 2024
uy

Q1 Make he cale da f
t n r or t he month of J l 2024.
uy

JULY

MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY SUNDAY
( सोमवार) ( मंगलवार) ( बुधवार) ( गुरुवार) ( शुक्रवार) ( शिनवार) ( रिववार)

The empty July grid printed in the book.

July 2024 has 31 days. 1 July 2024 is a Monday.
Write 1 in the first Monday box. Write 2, 3, 4 … in the next boxes. After Sunday, go to the next
row. Stop at 31.

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JULY 2024

MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY SUNDAY
(सोमवार) (मंगलवार) (बुधवार) (गुरुवार) (शुक्रवार) (शिनवार) (रिववार)

1 2 3 4 5 6 7

8 9 10 11 12 13 14

15 16 17 18 19 20 21

22 23 24 25 26 27 28

29 30 31

The July 2024 calendar, filled in.

− Exp anat on
l i

Why A week has 7 days. So every 7 boxes bring you back to the same
:

weekday.

D you now? The poem says July and January look the same. In 2024 both
id k

months start on a Monday and both have 31 days, so their calendars look alike.

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Q2 Ob e e he J l
s rv t u y mont h a dc
n omp lete the following. 1. N um ber of S da
un ys ______

JULY 2024

MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY SUNDAY
( सोमवार) ( मंगलवार) ( बुधवार) ( गुरुवार) ( शुक्रवार) ( शिनवार) ( रिववार)

1 2 3 4 5 6 7

8 9 10 11 12 13 14

15 16 17 18 19 20 21

22 23 24 25 26 27 28

29 30 31

The July 2024 calendar, filled in.

Look down the last column. The Sundays are 7, 14, 21 and 28.

Number of Sundays = 4

Why July 1 is a Monday. So the first Sunday comes on the 7th day, and then every
:

7 days.

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co m
m.
Q3 W i e he da e i hi a a e Th
h th t a
d ys ______
e
rt t t s nt s mont r urs

com g l as
. a
a s em
ag l JULY 2024

MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY SUNDAY

m (शुक्रवार)
.co
(सोमवार) (मंगलवार) (बुधवार) (गुरुवार) (शिनवार) (रिववार)
ag
a sem
agl
1 2 3 4 5 6 7

8 9 10 11 12 13 14

15 16 17 18 19 20

co m21

m .
m ase
22 23 24 25 26 27 28

e m . c29o agl
as
30 31

a g l The July 2024 calendar, filled in.

m a s
m .co agl
l a se
Read down the Thursday column. a g

co m
m .
e
Thursdays = 4, 11, 18, 25
m l as
m .co a g
l a seThere are 4 Thursdays in July 2024.

ag
Why Add 7 to one Thursday and you get the next Thursday. 4 7 11, 11 7 18, m
se
:    

com g l a
.
18  7  25.
m a
ase
agl

co m
m .
m as e
.co a g l
se m
g l a
a c
m .
m a s e
e m . co agl
g l as
a

co m
m .
m as e
.co

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Q4 Th ee da af e J l 22 i J l
r ys t r uy s u y ______. The day on this date is ______

JULY 2024

MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY SUNDAY
(सोमवार) (मंगलवार) (बुधवार) (गुरुवार) (शुक्रवार) (शिनवार) (रिववार)

1 2 3 4 5 6 7

8 9 10 11 12 13 14

15 16 17 18 19 20 21

22 23 24 25 26 27 28

29 30 31

The July 2024 calendar, filled in.

22 + 3 = 25

Three days after July 22 is July 25. The day on this date is Thursday.

Why July 22 is a Monday. Count three boxes to the right: 23 Tuesday, 24
:

Wednesday, 25 Thursday.

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Q5 A school closes on July 7 for 15 days. The date on which the school will open is ______

JULY 2024

MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY SUNDAY
(सोमवार) (मंगलवार) (बुधवार) (गुरुवार) (शुक्रवार) (शिनवार) (रिववार)

1 2 3 4 5 6 7

8 9 10 11 12 13 14

15 16 17 18 19 20 21

22 23 24 25 26 27 28

29 30 31

The July 2024 calendar, filled in.

The school is closed for 15 days: 7, 8, 9 … 21.

7 + 15 = 22

The school will open on 22 July. It is a Monday.

Let us Explore — Page 167

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Collect calendars for the last two years

Q1 Collect calendars for the last two years. Observe the following in both the calendars:
1. What is the same? What is changing in the years? Tick ✓ the correct answer.
(a) Names of the months  Same / Changes
(b) Days in a month  Same / Changes
(c) Days in a week  Same / Changes
(d) Number of Sundays  Same / Changes
(e) Number of weeks in a year  Same / Changes

LOOK AT TICK WHY

(a) Names of the Same January to December every year
months

(b) Days in a month Same Only February changes  28 or 29 days. So “Changesˮ is also right
.
if one year is a leap year

(c) Days in a week Same Always 7 days

(d) Number of Sundays Changes A month can have 4 or 5 Sundays. A year can have 52 or 53.

(e) Number of weeks Same 52 weeks and one day over
in a year

Why A year is 52 weeks and 1 extra day. That extra day pushes every date to a new
:

weekday next year.

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Q2 Circle the festivals that fall on the same date.

FESTIVAL DATE DATE FESTIVAL DATE DATE
MONTH MONTH MONTH MONTH
YEAR YEAR YEAR YEAR
DD/MM/YY DD/MM/YY DD/MM/YY DD/MM/YY

Deepawali Makar
Sankranti

Ganesh Mahavir
Chaturthi Jayanti

Eid-al-Fitr Independence
Day

Dussehra Gurupurab

Buddha Republic day
Purnima

Christmas Your birthday

The festival table printed on page 167. Two date columns are given for each festival — one
for each year.

Cr
i cle these four. They come on the same date every year.
Republic day  26 January
Independence Day  15 August

Christmas  25 December

Your birthday — your own date, every year
The other festivals come on a different date each year.

− Exp anat on
l i

Why Deepawali, Dussehra, Eid-al-Fitr, Buddha Purnima and many other
:

festivals follow the moon. So their dates move on our calendar.

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.
Tip: Makar Sankranti comes on 14 January or 15 January. Look at your twocom
calendars. If both show the same date, circle it too.
m sem a
e m . co agl
g l as
a
Let us Do — Page 167 . co m
ag
em
as
M a a d eek i a ea
l
h d ys
g
ont s, n w s n y r

a
Q1 W i e he a e f he 12 months in a ea .
m
rt t n m so t y r

co
e m.
m l as
.co
a g
se m
The 12 months in order are:
g l a
a 1. January 2. February 3. March 4. April

m a s
m .co 7. July agl
5. May 6. June 8. August

l a se
9. September
a g
10. October 11. November 12. December

Tip: Say them in a rhythm. It makes them easy to remember.
co m
m .
as e
. com a g l
a s em M h ha ha e le
agl Q2 ont s t t v ss t a a
h n 30 d ys ______

se m
com g l a
m . a
ase
Only one month: February.

agl
February — 28 days
co m
m .
e
In a leap year — 29 days
m l as
mA t .co a g
s e other months have 30 or 31 days.
la
ll he

ag c
m .
m a s e
e m . co agl
g l as
a

co m
m .
m ase
.co

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Q3 Num a
ber of d ys in a ea
y r ______

Days in a year = 365

In a leap year = 366

A ap y ar om s on
le e c e ce i n every four years. Then February has 29 days.

D you now? 2024 is a leap year, so 2024 had 366 days.
id k

Q4 Hetal says there are 53 weeks in a year. Is she right? Yes/No. If not, how many weeks
did you find in a ea ?
y r

No, Hetal is not right.

1 week = 7 days

52 weeks = 364 days

365 − 364 = 1 day left

So a year has 52 weeks and 1 day. The 1 extra day is not a whole week.

Age Fun — Page 168

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How old are we?

Q1 Talk to your mot her a d fi d he f ll
n n t o ow ni g.

HOW OLD ARE WE?

My age today

My mother’s age today

My mother’s age when I was born

Age of my mother’s mother today

Age of my mother’s mother when my mother was born

Age of my mother’s mother when I was born

The six blanks printed inside the green Age Fun picture on page 168.

As your mot r an
k he d fill your own numbers.
Sample answer:

QUESTION SAMPLE ANSWER

My age today 8 years

My mother’s age today 34 years

My mother’s age when I was born 26 years

Age of my mother’s mother today 60 years

Age of my mother’s mother when my mother was born 26 years

Age of my mother’s mother when I was born 52 years

Why 34 8 26. Your mother was 26 when you were born. The same subtraction
:  

works for your grandmother.

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Tip: Birth certificates and school records help you check the years.

Q2 Hetal is twice as old as her brother. She is also 10 years older than her brother. Guess
the age of Hetal and her brother.

Gu ss an
e d check . Try a w a s or t
fe ge f rother.
he b

BROTHER TWICE HIS AGE DIFFERENCE IS IT 10?

6 12 6 No

8 16 8 No

10 20 10 Yes

Brother = 10 years

Hetal = 20 years

Check: 10  10  20, so Hetal is twice as old. 20  10  10, so she is 10 years older.

Let us Do — Page 169

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Bincyʼs birth certificate

Q1 2/5/2015 shows that Bincy was born on 2 April/May/June/July) in the year 2015.

FORM NUMBER 5 · GOVERMENT OF KERALA
BIRTH CERTIFICATE

This is to certify that this information is taken from the original record of birth which is in
the register for the year 2015 of Kottayam Panchayat.

Name Bincy Thomas Jacob

Sex Female

Date of Birth 02/05/2015 (Second May Two Thousand Fifteen)

Place of Birth Kadampuzha Hospital

Name of Father Jacob Tharakan

Name of Mother Lara Thomas

Date of Registration 02/05/2015

Registration Number 815/15

Date 18. 05. 2015

Bincyʼs birth certificate as printed on page 169.

A at s wr tt n as DD/MM/YY. So 02 s t
d e i i e i he d ay and 05 is the month.

05 is the 5th month = May

B n y was orn on 2 May 2015.
i c b

Why Count the months  January 1, February 2, March 3, April 4, May 5.
:

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co m
m.
Q2 How old will Bincy be on 2 May 2025?
e
______

m l as
m.co a g
l a se
a g FORM NUMBER 5 · GOVERMENT OF KERALA
BIRTH CERTIFICATE

co m
. ag
This is to certify that this information is taken from the original record of birth which is in

se m
the register for the year 2015 of Kottayam Panchayat.
l a
Name ag Bincy Thomas Jacob

co m
m.
Sex Female

m as e
.co
Date of Birth
g l
02/05/2015 (Second May Two Thousand Fifteen)

a
se m Place of Birth
g l a Kadampuzha Hospital

a Name of Father Jacob Tharakan

m a s
Name of Mother
em
.co
Lara Thomas
agl
a s
Date of Registration
a gl 02/05/2015
m
Registration Number 815/15

. co
e m
m as
Date 18. 05. 2015

.co a g l
a s em Bincyʼs birth certificate as printed on page 169.
agl
se m
com g l a
. a
yseeam
H r rt ay s 2 May. Count t
a
agl
e bi hd i he rs from 2015 to 2025.

m
2025 − 2015 = 10
. co
e m
B n ym l as
.co g
w 10 years old on 2 May 2025.
a
i c ill be

se m
g l a Why She turns one year older on every 2 May.
a
:

.c
s e m
m a
e m . co agl
g l as
a

co m
m .
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.co

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Q3 How old will she be in 2030? ______

FORM NUMBER 5 · GOVERMENT OF KERALA
BIRTH CERTIFICATE

This is to certify that this information is taken from the original record of birth which is in
the register for the year 2015 of Kottayam Panchayat.

Name Bincy Thomas Jacob

Sex Female

Date of Birth 02/05/2015 (Second May Two Thousand Fifteen)

Place of Birth Kadampuzha Hospital

Name of Father Jacob Tharakan

Name of Mother Lara Thomas

Date of Registration 02/05/2015

Registration Number 815/15

Date 18. 05. 2015

Bincyʼs birth certificate as printed on page 169.

2030 − 2015 = 15

She will be 15 years old after her birthday on 2 May 2030. Before 2 May 2030 she is still 14.

Check it yourself: In 2025 she is 10. Add 5 more years  10  5  15.

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Q4 Eighth Birthday of Bincy was on ______ .

FORM NUMBER 5 · GOVERMENT OF KERALA
BIRTH CERTIFICATE

This is to certify that this information is taken from the original record of birth which is in
the register for the year 2015 of Kottayam Panchayat.

Name Bincy Thomas Jacob

Sex Female

Date of Birth 02/05/2015 (Second May Two Thousand Fifteen)

Place of Birth Kadampuzha Hospital

Name of Father Jacob Tharakan

Name of Mother Lara Thomas

Date of Registration 02/05/2015

Registration Number 815/15

Date 18. 05. 2015

Bincyʼs birth certificate as printed on page 169.

Add 8 y ars to t
e he year she was born.

2015 + 8 = 2023

H r e t
eigh h bi rthday was on 2 May 2023.

Why Her first birthday was in 2016, so the eighth one is 8 years after 2015.
:

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Q5 Bincy was ______ mont hs old on 2 August 2015.

FORM NUMBER 5 · GOVERMENT OF KERALA
BIRTH CERTIFICATE

This is to certify that this information is taken from the original record of birth which is in
the register for the year 2015 of Kottayam Panchayat.

Name Bincy Thomas Jacob

Sex Female

Date of Birth 02/05/2015 (Second May Two Thousand Fifteen)

Place of Birth Kadampuzha Hospital

Name of Father Jacob Tharakan

Name of Mother Lara Thomas

Date of Registration 02/05/2015

Registration Number 815/15

Date 18. 05. 2015

Bincyʼs birth certificate as printed on page 169.

Count t he months from May to August.

May → June → July → August

That is 3 months

B n y was 3 months old on 2 Au ust 2015.
i c g

Why The date 2 stays the same, so we count only whole months.
:

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Q6 After how many days of her birth was the certificate issued? ______

FORM NUMBER 5 · GOVERMENT OF KERALA
BIRTH CERTIFICATE

This is to certify that this information is taken from the original record of birth which is in
the register for the year 2015 of Kottayam Panchayat.

Name Bincy Thomas Jacob

Sex Female

Date of Birth 02/05/2015 (Second May Two Thousand Fifteen)

Place of Birth Kadampuzha Hospital

Name of Father Jacob Tharakan

Name of Mother Lara Thomas

Date of Registration 02/05/2015

Registration Number 815/15

Date 18. 05. 2015

Bincyʼs birth certificate as printed on page 169.

She was born on 2 May 2015. The certificate is dated 18 May 2015.

18 − 2 = 16

The certificate was issued 16 days after her birth.

Why Both dates are in the same month, so we just take away the smaller date.
:

Let us Do — Page 170

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Make birth certific te a
co m
m.
your own

as e
Make.com a g l
a
Q1 birth certific te.
em
your own

a s
a gl
FORM NUMBER · GOVERNMENT OF ________

co m
________

. ag
BIRTH CERTIFICATE
e m
g l as
This is to certify that the information was taken from original records of birth which is in the
a
register of year ________ and ________

co m
m.
Name

m as e
.co g l
Sex

m Date of Birth a
l a se
a g
Place of Birth

m a s
Name of Father
m .co agl
l a se
Name of Mother
a g
m
Date of Making Certificate

. co
e m
m as
Age on the date of making the certificate

.co Your Signature a g l
se m
g l a
a The blank birth certificate printed on page 170.

se m
com g l a
m . a
gl ase
F t
ill he f i h
a
orm w t your own ta s. As an de il k elde r for the dates.
Sample answer:
co m
m .
m as e
.co a g l
se m
g l a
a c
m .
m a s e
e m . co agl
g l as
a

co m
m .
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.co

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LINE ON THE FORM SAMPLE FILLING

Form Number 5

Government of Kerala

Register of year … and … 2017 and Kollam Corporation

Name Meera Nair

Sex Female

Date of Birth 14/06/2017

Place of Birth Town Hospital, Kollam

Name of Father Rajan Nair

Name of Mother Suma Rajan

Date of Making Certificate 10/07/2025

Age on this date 8 years

Your Signature Meera

Why 2025 2017 8. Her birthday in June is over, so she is 8 years old.
:  

Q2 Complete the following by writing the dates in the boxes given below:

DATE DATE ON WHICH DATE ON WHICH DATE ON WHICH
OF YOU WERE YOU WERE YOU WERE
BIRTH ADMITTED IN THE ADMITTED IN ADMITTED IN
SCHOOL. CLASS 1. CLASS 3.

The four empty date boxes printed on page 170.

Write your own four dates as day/month/year.

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Sample answer:

BOX SAMPLE DATE

Date of Birth 14/06/2017

Date on which you were admitted in the school 05/04/2021

Date on which you were admitted in Class 1 03/04/2023

Date on which you were admitted in Class 3 01/04/2025

Tip: Your school diary or report card has these dates.

Let us Play — Page 171
L ka a
oo t wor king clock

Q1 Get a working analog clock or watch. Observe the face of the clock and movements of
the hands. Discuss what you observe.

Hour hand 11 12 1
10 2
9 3
8 4
Minute hand 7 6 5

The labelled clock face printed on page 171.

H r s w at you w s .
e e i h ill ee

 T he numbers 1 to 12 go round the face.
 T he short hand is the hour hand. It moves very slowly.

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 T long hand s t m nut an . It mov s ast r.
he i he i e h d e f e

 Bot an s turn t sam way — rom 12 to 1 to 2.
h h d he e f

− Exp anat on
l i

Why The minute hand goes round once in one hour. In that same time the hour
:

hand moves only from one number to the next.

Try This: Watch the minute hand for one minute. It moves just one small mark.

Let us Do — Page 171
Hetal s breakfast and drawing the hands
ʼ ,

Q1 Hetal started her breakfast at 7 oʼclock in the morning. She finished her breakfast at
0715 in the morning. She took minutes to eat her breakfast. How do you know?
______

11 12 1 11 12 1
10 2 10 2
9 3 9 3
8 4 8 4
7 6 5 7 6 5

(a) 0700 b
( ) 0715

The two clocks printed beside Hetalʼs breakfast question.

She took 15 minutes.
How I now: t
k ong minute hand is on 12 in clock (a) and on 3 in clock (b). From one number
he l

to the next is 5 minutes.

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12 to 3 = 3 jumps

5 + 5 + 5 = 15 minutes

Q2 Draw the hour hand and minute hand on the clock to show the following: (a) 815 or
a e a 8
qu rt r p st

11 12 1
10 2
9 3
8 4
7 6 5

(a )

The empty clock face printed for part (a).

 Draw t ong minute hand to 3. That is 15 minutes.
he l

 Draw t he short hour hand just after 8.

11 12 1
10 2
9 3
8 4
7 6 5

quarter past 8
Hands drawn for 815.

Why Quarter past 8 means 15 minutes after 8 oʼclock.
:

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m or
Draw the hour hand and minute hand on the clock to show the following: (b.c)o830
m
Q3
a a m
h lf p st 8
l a se
. co a g
a s em
ag l
11 12 1

9.c
om ag
10 2

sem8
3

a
agl
4
7 6 5

co m
b
( )
se m.
m The empty clock face printed for part (b).gla
m .co a
ase
agl
m a s
 Draw t o minutes.
ong minute hand to 6. That is.c30
emtween 8 and 9. agl
asbe
he l

agl
 Draw t he short hour hand halfway

com
m .
m
11 12 1
as e
.co
10 2
a g l
a s em 9 3

agl 8
7 6 5
4

se m
com g l a
m . a
ase
half past 8
agl Hands drawn for 830.

Why Half past 8 means 30 minutes after 8. The hour hand heams g.conome half the way to
s
:

m a
.co agl
9.

se m
g l a
a c
— Page 172 m .
Let us Do
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A Day in the life of Hetal

Q1 A Day in the life of Hetal. Match the activity with the statement shown in the picture.
W i e he i e, a d d a
rt t tm n r wt he minute h nd a a d he h
n t our a
h nd wherever it is required.

11 12 1 11 12 1 11 12 1
10 2 10 2 10 2
9 3 9 3 9 3
8 4 8 4 8 4
7 6 5 7 6 5 7 6 5

Goes to Sleep Wakes up Does yoga
9 oʼclock ______ oʼclock 7 oʼclock

11 12 1 11 12 1 11 12 1
10 2 10 2 10 2
9 3 9 3 9 3
8 4 8 4 8 4
7 6 5 7 6 5 7 6 5

Goes to School Studies Plays
______ oʼclock 5 oʼclock 4 oʼclock

11 12 1 11 12 1
10 2 10 2
9 3 9 3
8 4 8 4
7 6 5 7 6 5

Lunch Returns home
2 oʼclock 1 oʼclock
A Day in the life of Hetal — the eight clocks printed on page Six clocks are empty and
172.

two already have their hands drawn .

Two clocks already have hands. Read them. Draw hands on the other six.

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ACTIVITY TIME WHAT TO DO

Wakes up 6 o’clock Read the clock

Does yoga 7 o’clock Draw the hands

Goes to School 8 o’clock Read the clock

Returns home 1 o’clock Draw the hands

Lunch 2 o’clock Draw the hands

Plays 4 o’clock Draw the hands

Studies 5 o’clock Draw the hands

Goes to Sleep 9 o’clock Draw the hands

11 12 1 11 12 1 11 12 1
10 2 10 2 10 2
9 3 9 3 9 3
8 4 8 4 8 4
7 6 5 7 6 5 7 6 5

Goes to Sleep Wakes up Does yoga
9 oʼclock 6 oʼclock 7 oʼclock

11 12 1 11 12 1 11 12 1
10 2 10 2 10 2
9 3 9 3 9 3
8 4 8 4 8 4
7 6 5 7 6 5 7 6 5

Goes to School Studies Plays
8 oʼclock 5 oʼclock 4 oʼclock

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11 12 1 11 12 1
10 2 10 2
9 3 9 3
8 4 8 4
7 6 5 7 6 5

Lunch Returns home
2 oʼclock 1 oʼclock
All eight clocks with their hands drawn .

Why At every oʼclock time the minute hand is on 12.
:

Q2 Wake s up — ______ oʼclock

11 12 1
10 2
9 3
8 4
7 6 5

Wakes up
The clock printed beside ‘Wakes upʼ on page 172.

Look at the two hands.
 T ong minute hand points to 12.
he l

 T he short hour hand points to 6.

Hetal wakes up at 6 o’clock

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Why The hour hand tells the hour. The minute hand on 12 means no minutes have
:

passed.

Q3 Goes to School — ______ o ʼclock

11 12 1
10 2
9 3
8 4
7 6 5

Goes to School
The clock printed beside Goes to School on page
‘ ʼ 172.

Read the hands again.
 T ong minute hand is on 12.
he l

 T he short hour hand is on 8.

Hetal goes to school at 8 o’clock

Why She wakes at 6 and does yoga at 7. One hour later she leaves for school.
:

ʼ
Visit to Nani s House Grandma s House ( ʼ ) — Page 173

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The ic e story a he a
f he p ge
co m
m.
p tur tt top o t

as e
Q1 omsame sweater you were knitting earlier?
Is this cthe
. a g l
m
ase
agl
VISIT TO NANIʼS HOUSE (GRANDMAʼS HOUSE)

co m
e m . ag
as
Panel 1 — the girl, to her “Is this the same sweater you were knitting earlier?ˮ
grandfather who is knitting
a g l
Grandfather answers “Yes, it took me two months. Now it is almost ready for you.”

co m
“How long do these vegetables take to grow?ˮ
em.
Panel 2 — the girl, in the

m l as
.co g
vegetable garden

m Grandfather answers a
l a se “Different vegetable seeds take different times to grow. Radish takes

a g 2–3 weeks; cabbage, capsicum, carrot, cauliflower, etc., may take 2–3
months.”

m a s
The two picture p.cao
m nels printed at the top of page 173. agl
l a se
a g
co m
m .
Yes, t s t sam sw at r.
i

m
i he e e e

as e
.co a g l
s m taken = 2 months
eTime
gl a
a
Gran at r says t s a most r a y now. se m
com g l a
df he i i l e d

. a
eme jobs take months, not minutes.
Why Knitting is slow workl.aSsom
ag
:

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m as e
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m .
m a s e
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Q2 How long do these vegetables take to grow?

VISIT TO NANIʼS HOUSE (GRANDMAʼS HOUSE)

Panel 1 — the girl, to her “Is this the same sweater you were knitting earlier?ˮ
grandfather who is knitting

Grandfather answers “Yes, it took me two months. Now it is almost ready for you.”

Panel 2 — the girl, in the “How long do these vegetables take to grow?ˮ
vegetable garden

Grandfather answers “Different vegetable seeds take different times to grow. Radish takes
2–3 weeks; cabbage, capsicum, carrot, cauliflower, etc., may take 2–3
months.”

The two picture panels printed at the top of page 173.

D r nt seeds take different times.
iffe e

Radish  2 to 3 w s eek

Cabbage, capsicum, carrot, cauliflower  2 to 3 mont s h

So a radish grows fast. The other vegetables take much longer.

Let us Think — Page 173

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Events that take months, weeks, days, hours or minutes

Q1 Fill the table by writing events or activities from your daily life that can take the
a
following dur tions of time. O ei
n i e
s wr tt n a a ea
s n x mp a
le in e ch column.

TAKES MONTHS TAKES WEEKS TAKES TAKES TAKES
DAYS HOURS MINUTES

Changing from Completing a Knitting a Stitching a Taking a shower
summer to winter chapter in class sweater shirt

The table printed on page 173. The first row is the bookʼs own example.

Think about how long each job really takes.
Sample answer:

TAKES MONTHS TAKES WEEKS TAKES DAYS TAKES HOURS TAKES
MINUTES

Changing from summer Completing a Knitting a Stitching a shirt Taking a shower
to winter chapter in class sweater

Growing a cauliflower Growing a radish Painting a room A train ride to Brushing your
another city teeth

A baby learning to Summer holidays Getting well A school day Drinking a glass
walk from a cold of milk

Rainy season A school exam week A wedding at Watching a film Tying your
home shoelaces

Tip: A sweater can take days or even months. Grandfather knitted slowly, so his
sweater took two months.

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In-text Questions — Page 174
How many minutes do daily activities take

Q1 W i e he
rt t num a a
ber of minutes t ken for the following ctivities.

ACTIVITY TIME TAKEN

School Period __________ minutes

Lunch Break __________ minutes

Mid-day Meal __________ minutes

Play Period __________ minutes

Eating Dinner __________ minutes

Brushing Teeth __________ minutes

The activity table printed on page 174.

Time yourself with a clock.
Sample answer:

ACTIVITY TIME TAKEN

School Period 40 minutes

Lunch Break 30 minutes

Mid-day Meal 20 minutes

Play Period 45 minutes

Eating Dinner 25 minutes

Brushing Teeth 3 minutes

Why Note the start time and the end time. Count the marks the minute hand moves
:

in between.

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C heck i t yourself: Your school bell times will give you the real answer for the
periods.

Q2 W i ed
rt own w a a a
h t you c n do in the time fr me given below.

TIME ACTIVITY

5 minutes

10 minutes

15 minutes

20 minutes

25 minutes

30 minutes

45 minutes

60 minutes

The time-frame table printed on page 174.

Match each time with a job of about that length.
Sample answer:

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co m
m.
TIME ACTIVITY

m as e
5 minutes
.co
Brushing my teeth
a g l
se m
g l a
a
10 minutes Walking to the shop

15 minutes Eating breakfast

co m
m . ag
se
20 minutes Taking a bath

Doingg l a
25 minutes
a my homework page
30 minutes Playing kho-kho
co m
em.
com l as
45 minutes Helping to cook dinner

. a g
m
ase
60 minutes A bus ride to my nani’s house

agl
Why 60 minutes make one hour. So the last row is a whole hour of work. s
m a
agl
:

m.co
l a se
g
In-text Questions — Pagea175
co m
m .
m as e
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se m
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a
se m
com g l a
m . a
ase
agl

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m .
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se m
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m .
m a s e
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g l as
a

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m .
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S a Ti e E d Ti e a d Ti e Take
t rt m , n m n m n

Q1 W i e he be f i
rt t num e a ed b l ki g a he
r o m nut s p ss y oo n tt e e f he minute
mov m nt o t ad
n

hour ha d . n s

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START TIME END TIME TIME
TAKEN

5 minutes

11 12 1 11 12 1
10 2 10 2
9 3 9 3
8 4 8 4
7 6 5 7 6 5

11 12 1 11 12 1
10 2 10 2
9 3 9 3
8 4 8 4
7 6 5 7 6 5

11 12 1 11 12 1
10 2 10 2
9 3 9 3
8 4 8 4
7 6 5 7 6 5

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11 12 1 11 12 1
10 2 10 2
9 3 9 3
8 4 8 4
7 6 5 7 6 5

11 12 1 11 12 1
10 2 10 2
9 3 9 3
8 4 8 4
7 6 5 7 6 5

11 12 1 11 12 1
10 2 10 2
9 3 9 3
8 4 8 4
7 6 5 7 6 5

The six pairs of clocks printed on page 175. Only the first row is filled in by the book.

Read both clocks. Then count how far the minute hand has moved.

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ROW START TIME END TIME TIME TAKEN

1 8:10 8:15 5 minutes (given)

2 8:20 8:30 10 minutes

3 8:30 10:45 2 hours 15 minutes

4 6:15 6:45 30 minutes

5 4 o’clock 5 o’clock 1 hour (60 minutes)

6 3:30 4:30 1 hour (60 minutes)

Row 3 in minutes: 2 hours = 120 minutes

120 + 15 = 135 minutes

− Exp anat on
l i

Why Every number on the dial is 5 minutes. Count the numbers the minute
:

hand crosses, then add 60 for each full round.

Tip: In row 3 the short hour hand of the second clock is near 11 and the long
minute hand is on 9, so that clock reads 1045. This row jumps over two hours,
unlike the short jumps in the other rows.

Let us Explore — Page 176

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Digital and analog clocks, and a sand clock
m
m .co
Y .acohma e ee digi al a che l a seeha e
ag
Q1 clocks a ai lace . Whe een
em?
ou m y v s n t w t s or t v r ous p s r v you s

a s
he
gl
t m

a

co m
e m . ag
g l as
a 11 12 1

18:02
10 2
9 3
co m
em.
as
8 4
m l
.co g
7 6 5

m a
l a se
a g Co
l ck 1 railway station Co l ck 2 wall clock

m
The two clocks photographed on page 176.
a s
m .co agl
l a se
a g
D ta o s ar a aroun us.
co m
.
igi l cl ck e ll d

Sample answer: em
m
At.acora way stat on an a us stan g l as
a
sem
il i d b d

a
agl
On a m rowav , a TV an a mo
ic p on
e d bile h e

On a wrist watch and an alarm clock
In banks, shops and school offices se m
com g l a
m . a
ase
agl

co m
m .
m as e
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se m
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g l as
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m .
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Q2 Wha i he diffe e ce be ee he ab e
t st r n tw nt ov two clocks?

11 12 1

18:02
10 2
9 3
8 4
7 6 5

Co
l ck 1 railway station Co l ck 2 wall clock

The two clocks photographed on page 176.

DIGITAL CLOCK ANALOG CLOCK

Shows the time using digits Shows the time using hands

Has no hands Has hour, minute and second hands

You just read the numbers You must look where each hand points

The first picture is a digital clock. The second one is an analog clock.

Why Both clocks tell the time, but in two different ways. Here they show different
:

times too: 1802 and about 1010.

Q3 Which cl ck d
o o you a
h ve on your school w ll? a

Look at your own school wall and answer.
Sample answer: Most s oo s av a roun analog o
ch l h e d cl ck with hands.

Tip: If it has hands, it is analog. If it shows digits, it is digital.

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Q4 Duration of time is also measured using sand clocks. Make your own sand clock
(timer), in the presence of an adult.
Material required: (a) Two waste transparent or glass bottles of small size with caps.
(b) Strong glue to join bottle caps.
Process: Join the tops of the bottle caps with each other using a strong glue. Make a
small hole with a fine needle at the centre of the joined caps. Fill one of the bottles half

way with fine sand and close the bottle with the joined caps. Attach the second bottle

on the other side of the joined caps.

Find out how much time it takes to shift the sand from one bottle to the second one by
a Y a
looking t the clock. our s nd clock is re dy for use.a Y a
ou m y us e it to time while
a
pl ying different g mes. a

Two bottles joined at the caps
The sand clock made from two bottles, as shown on page 176.

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 Turn t ott s ov r an not t
he b le e d e he time on a clock.
 Wa t t t ast san a s.
i ill he l d f ll

 Not t t m a a n.
e he i e g i

 Count t m nut s n tw n.
he i e i be ee

Sample answer: start 4:00, end 4:03 → 3 minutes

Why The sand falls at the same speed every time.
:

Chapter at a glance
Aw as 7 ays. A y ar as 12 mont s an 365 ays. A ap y ar as 366 ays.
eek h d e h h d d le e h d

A a n ar s ows t at s o on mont . Ea o umn s on ay o t w .
c le d h he d e f e h ch c l i e d f he eek

A at s wr tt n as DD/MM/YY. So 02/05/2015 m ans 2 May 2015.
d e i i e e

An ana o o as a s ort our an an a on m nut an .
l g cl ck h h h h d d l g i e h d

On our as 60 m nut s. Ha past m ans 30 m nut s a t r t
e h h our.
i e lf e i e f e he h

A ta o s ows t m w t
digi l cl ts. A san o m asur s a s ort t m .
ck h i e i h digi d cl ck e e h i e

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Quick revision

WORD WHAT IT MEANS EXAMPLE FROM THE REMEMBER
CHAPTER

Calendar A chart of the days of a The July 2024 calendar on Each column is one weekday
month page 166
Week 7 days, Monday to Days in a week  Same every 1 week 7 days


Sunday year

Month One of the 12 parts of a 7
July is the th month Months have 28, 29, 30 or 31
year days

Year 12 months together Bincy was born in 2015 1 year 365 days


Leap year A year with 366 days 2024 is a leap year February gets 29 days

Date The number of a day in a 02/05/2015 Written as DD MM YY/ /
month

Hour hand The short hand on a clock It points near 7 at 0715 It moves slowly

Minute hand The long hand on a clock It points to 3 at 0715 It moves fast

ʼ
o clock The minute hand is on 12 9 oʼclock  Hetal goes to Minutes are 00
sleep

Quarter past 15 minutes after the hour 815 or quarter past 8 Minute hand on 3
Half past 30 minutes after the hour 830 or half past 8 Minute hand on 6
Analog and Two kinds of clocks The station clock shows 1802 Analog has hands, digital has
digital digits

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