# STD 4 MATHS:

# EKAM: 1 INTO NI IMARAT

## એકમ: 1 ઇંટોની ઇમારત

## ધોરણ ૪ ગણિતના પ્રથમ સત્રનું પાઠ આયોજન અહી મુકેલું છે. જેમાં એકજ જગ્યાએથી એકમનો વિડીયો તેમજ એકમની pdf દ્વારા બાળકોને એકમનું શિક્ષણ કરાવી શકો છો તેમજ એકમને અનુરૂપ ક્વિજ દ્વારા બાળકોની ક્ષમતાનું મૂલ્યાંકન પણ કરી શકશો આ ઉપરાંત હોમવર્ક અને અન્ય પ્રવૃત્તિઓ ટૂંક સમયમાં અપલોડ કરવામાં આવશે

# સારા માર્ક મેળવવા માટે સૌ પ્રથમ આ પાઠનો વિડીયો જુઓ ત્યારબાદ ટેસ્ટ આપો

### NCERT Class 4 Maths Chapter 1 Building with Brick Solutions

**NCERT book Page No: 2**

**Question: 1**

**Which floor pattern do you like the most?**

**Answer: **Pattern 5 looks familiar, so I like pattern 5.

**Question: 2**

**Have you seen such patterns anywhere?**

**Answer**: Yes, I have seen this type of pattern in mosques.

**NCERT book Page No: 3**

**Question: 3**

**Which pattern is made in a circle?**

**Answer: **Pattern J is made in a circle

**NCERT book Page No: 4**

**Question: 4**

**How to draw a brick?**

**Answer: **Drawing a brick is shown below

**Question: 5**

**How many faces in all does a brick have?**

**Answer: **There are six faces in a brick.

**Question: 6**

**Is any face of a brick a square?**

**Answer: **No, a face of a brick has no square face.

**Question: 7**

**Draw the smallest face of the brick.**

**Answer: **The smallest face of the brick is being drawn below

**Question: 8**

**Which of these are the faces of a brick? Mark a (Right)**

**Answer:**

**Question: 9**

**Which of these is a drawing of a brick? Mark a (Right)**

**Question: 10**

**Make a drawing of this box to show 3 of its faces.**

**Answer: **Drawing of this box to show 3 of its faces is shown below

**Question: 11**

**Can you make a drawing of a brick which shows 4 of its faces?**

**Answer: **No, we cannot draw a brick which shows 4 of its faces.

**NCERT book Page No: 5**

**Question: 12**

**What do you think? Which wall will be stronger?**

**Answer: **The wall made by Zainab will be stronger than Muniya

**NCERT book Page No: 6**

**Looking through a Brick ‘jaali’**

**The masons who built Jagriti School had also made different ‘jaali’ patterns on the walls.**

**Question: 13**

**How many different ‘jaali’ patterns can you see in these two photos?**

**Answer: **There are five jaali patterns in the given two photos

**NCERT book Page No: 9**

**Question: 14**

**Have you seen arches in a bridge?**

**Answer: **Yes, have seen arches in a bridge

**Question: 15**

**Where else have you seen an arch?**

**Answer: **I saw arches in old bridges. In Jaunpur, one of such bridges is situated on the river Saryu.

**Question: 16**

**Isn’t the ‘jaali’ of this window beautiful? It is made of thin bricks. Have you ever seen thin bricks? Look around**

**Answer**: The ‘jaali’ of the window is very beautiful.
Yes, I have seen thin bricks. These thin bricks are used in Red Fort
situated in Delhi.

**NCERT book Page No: 10**

**Question: 17**

**Which of these bricks have curved edges?**

**Answer: **The bricks 1 and 2 from top left have curved edges in the given figure

**Question: 18**

**How many faces do you see of the longest brick?**

**Answer: **Only one face of the longest brick can be seen in the given figure

**Question: 19**

**Is there any brick which has more than six faces?**

**Answer: **No, there is no bricks with more than six faces in the given figure.

**Question: 20**

**Have you seen bricks of different sizes?**

**Take one brick and measure it.**

**(a) How long is it?**

**Answer: **It is 10 inches in length

**(b) How wide it is?**

**Answer: **It is 4 and half inches wide

**(c) How high is it?**

**Answer: **It is 3 inches in height

**Question: 21**

**Muniya wants to make a wall 1 metre long. How many bricks will she need to put in a line?**

**Answer: **She needs 4 bricks to make a wall 1 metre long

**Question: 22**

**Can you guess how high is the chimney here? Is it:**

**(a) about 5 metres?**

**(b) about 15 metres?**

**(c) about 50 metres?**

**Answer: **The chimney is about 50 metres high in the given figure

**NCERT book Page No: 11**

**Question: 23**

**Here are four pictures from the brick kiln. These pictures are jumbled up. Look at them carefully. Write the correct order**

**Answer: **The correct order of the given figure is C, D, B and A i.e

**NCERT book Page No: 12**

**Question: 24**

**Have you seen a brick kiln? Did you try to guess the number of bricks kept there?**

**Answer: Yes, I saw a brick kiln. There may be more than one lakh bricks kept in brick kiln.**

**Question: 25**

**Can you write the number one lakh?**

**Answer: **One lakh is written as 100000

**Question: 26**

**Look at these photos and guess how many bricks are carried by this truck.**

**Also find out from a truck driver how many bricks they can carry in one truck.**

**Answer: **According to truck driver, he can carry 4000 bricks in a truck.

**Bhajan went to buy bricks. The price was given for one
thousand bricks. The prices were also different for different types of
bricks.**

**Old bricks – Rs 1200 for one thousand bricks**

**New bricks from Intapur – Rs 1800 for one thousand bricks**

**New bricks from Brickabad – Rs 1200 for one thousand bricks**

**Question: 27**

**Bhajan decided to buy the new bricks from Brickabad. He bought three thousand bricks. How much did he pay?**

**Answer: **Bhajan has to pay Rs 3600 for three thousand bricks

**Question: 28**

**Guess what he will pay if he buys 500 old bricks**

**Answer: **Bhajan pays Rs 600, if he buys 500 old bricks

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