Building and Bricks Class 4 Math JKBOSE Solutions

Building and Bricks Class 4 Math JKBOSE Solutions C

Page No. 1-2 Solutions

Brick Patterns for Jagriti School

Which floor pattern do you like the most?

Ans. I like the pattern 4 the most.

Have you seen such patterns anywhere?

Ans. Yes, I have seen such patterns in Jama Masjid.

Page No. 3 Solutions

Which pattern is made in a circle?

Ans. I observe that pattern J is made in a circle.

In which pattern can you show mirror halves? Draw a line.

Ans. In Patterns B, H and I, we can show mirror halves.

Now you draw some new floor patterns.

Ans. Here are some new floor patterns.

Page No. 4 Solutions

How to Draw a Brick?

These are two photos of the same brick.

In one photo we can see only one face of the brick. In the other, we can see three faces.

Circle the photo showing three faces.

Ans.

How many faces in all does a brick have?

Ans. A brick has six faces.

Is any face a square?

Ans. No, there is no square face of a brick.

Draw the smallest face of the brick.

Ans. The smallest face of the brick.

Which of these are the faces of a brick? Mark a (√).

Ans. The faces of brick are coloured and marked.

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

Ans.

Which of these is a drawing of a brick? Mark a (√).

Ans The drawings of a brick are coloured and marked.

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

Ans. No, we cannot make a drawing of a brick showing 4 of its faces. 

Page No. 5 Solutions

A Wall that will not Fall

One day Muniya and Zainab are playing with bricks and making their walls. Each makes a different wall.

Zainab says her wall will not fall easily. Masons too do not put bricks one on top of the other, as Muniya has done.

What do you think? Which wall will be stronger?

Ans. I think that Zainab’s wall will be stronger than Muniya’s wall.

Different Wall Patterns

Here are photos of three kinds of brick walls, can you see the the difference in the way the bricks are placed?

Ans. Yes.

Now match the photo of each wall with the correct drawing.

Ans.

Page No. 6 Solutions

Looking Through a Brick ‘Jaali’

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

Ans. We can see five Jaali patterns in these two photos.

Page No. 7 Solutions

This is a drawing of another beautiful ‘jaali’.

Ans.

Now colour some bricks red and make your own ‘Jaali’ patterns in the wall drawn below.

Ans.

Can you see the window (Jharokha) in this photo of the school?

Ans. Yes.

Now draw some jharokha patterns on the wall here. You can shade it black.

Ans.

Page No. 8 Solutions

Find Out

Look for other arches around you and draw them :

Ans. Photo of an arch.

Page No. 9 Solutions

Have you seen arches in a bridge?

Ans. Yes, I have seen arches in a bridge.

Where else have you seen an arch?

Ans. I have seen an arch in my school, at my home and on a bridge.

Page No. 10 Solutions

Which of these bricks have curved edges?

Ans. Brick number 1 and 2 from left-hand side top have curved edges.

How many faces do you see of the longest brick?

Ans. We can see only two faces of the longest brick.

Is there any brick which has more than six faces?

Ans. Yes, there is a brick which has more than six faces. 

Find Out: The Size of a Brick

Have you seen bricks of different sizes?

Ans. Yes, I have seen bricks of different sizes.

Take one brick and measure it.

(a) How long is it?

Ans. Its length is 9” (9 inch).

(b) How wide is it?

Ans. Its width is 4.5″ (4.5 inch).

(c) How high is it?

Ans. Its height is 3″ (3 inch).

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

Ans. It depends on the size of the brick If the size of the brick is 8 inches long then she needs 5 bricks but if the size of a brick is 9 inches in length then she needs 4 and a half bricks to make a wall 1 metre long.

Bricks and Bricks — Hot and Fresh!

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’s height is about 50 metres.

Page No. 11 Solutions

Here are four pictures from the Brick Kiln. These pictures are jumbled up.

Write the correct order.

Ans. The correct order is: C, D, B and A.

Page No. 12 Solutions

Find out

Look at these photos and guess

How many bricks are carried by this truck?

Ans. 4000 to 5000 bricks.

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

Ans. (Do yourself)

Mental Math: Bhajan Buys Bricks 

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