The document NCERT Solutions - Building With Bricks Class 4 Notes | EduRev is a part of the Class 4 Course Mathematics (Maths) for Class 4.

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**Ques 1: Which floor pattern do you like the most?Ans: **I like pattern 5 because this seems familiar.

**Ques 1:**

**â€¢ Which pattern is made in a circle?â€¢ In which pattern can you show mirror halves? Draw a line.â€¢ Now you draw some new floor patterns.**

â€¢ Pattern given in figure J is made in circles.

- We can show mirror halves in pattern H.
- Some new floor patterns made of brick are given here

**Hint****:** These are the sample Patterns.

**Page No - 4**

**Ques 1:****(a) How many faces in all does a brick have?**

**(b) Is any face a square?(c) Draw the smallest face of the brick.**

(a) A brick has 6 faces.

(b) No, all the faces of a brick are rectangular in shape.

(c) The smallest face of the brick is shown below:

**Ques 2: Which of these are the faces of a brick? Mark a (âœ“).**

**Ans: **

**Ques 3: Which of these is a drawing of a brick? Mark a (âœ“).**

**Ans: **

**Ques 4: Make a drawing of this box to show 3 of its faces.**

**Ans: **Figure of the geometry box showing 3 of its faces.

**Ques 5: Can you make a drawing of a brick which shows 4 of its faces?****Ans: **It is not possible to draw the figure of a brick that shows 4 of its faces.

**Page No - 5**

__Different Wall Patterns__**Ques 1: Here are photos of three kinds of brick walls. Can you see the difference in the way the bricks are placed?**

**â€¢ Now match the photo of each wall with the correct drawing below:**

**Ans: **

**Hint****:** The arrangement of the bricks in all the three cases is different. The answer to this part of the question may vary from student to student.

**Page No - 6**

**Ques 1: How many different â€˜jaaliâ€˜ patterns can you see in these two photos?**

**Ans: **There are five different types of â€˜jaaliâ€˜ patterns that can be seen in the above two photos.

**Page No - 7**

**Ques 1: Now colour some bricks red and make your own â€˜jaaliâ€˜ patterns in the wall drawn below.**

**Ans: **

**Hint****:** The answer may vary from student to student, based on his/her observation. It is highly recommended that the students prepare the answer on their own.**Ques 2: Now draw some jharokha patterns on the wall here. You can shade it black.**

**Ans: **

**Hint****: **The answer may vary from student to student. It is highly recommended that the students prepare the answer on their own. The answer provided here is for reference only

**Page No - 9**

**Ques 1: Where else have you seen an arch? ___________Ans: **We can see arches in rainbow, bridge, tunnel etc.

**Page No - 10**

**Ques 1: Take one brick and measure it. ****(a) Which of these bricks have curved edges?****(b) How many faces do you see of the longest brick?****(c) Is there any brick which has more than six faces?**

**Ans: **

(a) Following are the bricks with curved edges:

(b) We can see only 1 face of the longest brick.

(c) No, there is no brick with more than 6 faces

__Find Out: The Size of a Brick__

Have you seen bricks of different sizes?

**Ques 2: Take one brick and measure it.****(a) How long is it? _____________________****(b) How wide is it? _____________________****(c) How high is it? _____________________****Ans: **

(a) 21 cm

(b) 10 cm

(c) 0.7 cm**Hint****:** The answer may vary from student to student. It is highly recommended that the students prepare the answer on their own. The answers provided here are for reference only.**Ques 3: Muniya wants to make a wall 1 metre long. How many bricks will she need to put in a line? __________ ****Ans: **Let the length of each brick be 10 cm. Length of wall = 1 m. As the length of brick in cm, the length of the wall will be converted to cm for calculation. We know that 1 m = 100 cm.

Therefore, Length of wall (in cm) = 1 Ã—100 cm = 100 cm

Number of bricks required to make a 100 cm long wall = Length of wall Ã· Length of 1 brick

= 100 Ã·10 = 10

The number of bricks required to make 1 m long wall = 10.__Bricks and Bricks â€” Hot and Fresh!__**Ques 4: Can you guess how high is the chimney here?**

**Is it: ****(a) about 5 metres? ****(b) about 15 metres? ****(c) about 50 metres?****Ans: **The chimney shown in the picture is about 50 metres high.

**Page No - 11**

**Ques 1: ****Here are four pictures from the brick kiln. These pictures are jumbled up. Look at them carefully.Write the correct order. ______________**

**Ans: **The correct order is C, D, B, A

**Page No - 12**

__Mental Math: Bhajan Buys Bricks __**Ques 1: ****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 | â€“ Rs 1200 for one thousand bricks |

New bricks from Intapur | â€“ Rs 1800 for one thousand bricks |

New bricks from Brickabad | â€“ Rs 2000 for one thousand bricks |

**Bhajan decided to buy the new bricks from Brickabad. He bought three thousand bricks. How much did he pay? ___________â€¢ Guess what he will pay if he buys 500 old bricks. **

Bhajan bought new bricks from Brickabad.

Cost of one new brick from Brickabad = Rs 2000Ã·1000 = Rs 2

Cost of 3000 new bricks bought from Brickabad = Rs 2Ã—3000 = Rs 6000

Bhajan bought 500 old bricks and the cost of 1000 old bricks = Rs 1200

We have to find the cost of 500 old bricks, which is half of 1000 bricks.

Therefore, Cost of 500 old bricks = Rs 1200 Ã· 2 = Rs 600

Thus, the cost of 500 old bricks = Rs 600

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47 videos|44 docs|32 tests

### Worksheet - Building With Bricks

- Doc | 3 pages
### What are shapes? (Hindi)

- Video | 17:49 min
### Chapter Notes - Building with Bricks

- Doc | 2 pages
### Different wall patterns (Hindi)

- Video | 14:07 min
### Test: Building With Bricks - 2

- Test | 15 ques | 30 min
### Test: Building With Bricks - 3

- Test | 10 ques | 20 min

- Arches (English)
- Video | 04:31 min
- What are shapes? (English)
- Video | 02:55 min