NCERT solutions for Math - Magic [English] Class 3 chapter 5 - Shapes and Designs [Latest edition]

Colour the clown following the directions given below :

Triangles

Squares

Rectangles

Circles  

How many triangles are there in the following figures?

Find the biggest rectangle in the figures given below.

Looking at the picture given above, can you tell who is out?

Where is Guddu standing?

Can this game be played around a round table? Why?

Look around you and identify things with straight and curved edges.

Do the things with straight edges have corners?

Do the things with curved edges have corners?

Try to find things which have both straight and curved edges.

1. Take a rectangular sheet of paper.
2. Count its corners.
3. Now fold one of its corners.
   a) How many corners does it have now?
   b) How many corners will you get by folding
   i) 2 corners
   ii) 3 corners
   iii) 4 corners
   c) Can you fold this paper in such a way that it has only three corners? You are allowed only two folds.
   What shape will you get?
4. Repeat the activity with a square sheet of paper.
5. Can you fold all the corners of the square sheet in such a way that the number of corners remains unchanged?

Look at the following table and tick (√) the names of things that have  corners. Also count the number of edges and corners in ea.ch of them.

In the following figures, tick (√) those which have corners. 

Do these figures have curved lines?

Using only straight lines, can you draw a figure which has no corners?

How many triangles do you have in your set? Are all of them equal in size? Find out.

Use the two small triangles in the tangram set to get the following shapes:

(1)	(2)	(3)

Take pieces 4 and 5 from the set and find out on which side of the triangle you can join the other piece.

Find matching sides among the following pairs of pieces.

1. Pieces 1 and 2
2. Pieces 2 and 4
3. Pieces 1 and 5
4. Pieces 2 and 5

Use only triangles

Use pieces 1, 2, 3 and 5

Use only two triangles

Use pieces 1, 2, 3, 4 and 5

Which geometrical shapes can you identify in these borders? Draw them in your notebook.

Is any shape repeating in a particular pattern? Which ones?

Are the shapes made of

1. Curved lines
2. Straight lines
3. Both curved and straight lines.

Look at your cloths, your mother’s saris/shawls, rugs and mats. Can you identify some patterns? Draw them in your notebook.

Among the following, can you match the tiles with the designs that they will make on the floor? Draw lines to match.

You can also make your own tiles and use them to make your own tiling patterns. You will find some such tiles at the end of the book that you can cut out, trace and colour.

Complete the following tiling pattern.

Complete this pattern. Compare it with the pattern on page 70 which also uses six sided shapes. What is the difference between the two?

Khushboo and Hariz live in Agra. One day they went to see the Taj Mahal. The floor had the pattern shown below:

What do you think? Discuss with your friends.

Use different colour combinations to make your own patterns.

Have you seen this shape in any other design - on a wall, a dress, on a basket, a mat etc.?

Franke and Juhi's mummy has hidden a surprise gift for both of them. But she wants them to find out through a treasure hunt. She has written some instructions here. Can you help Juhi and Franke in finding their gift?

1. Start from the tallest tree.
2. Go forward on the pathway.
3. From the sixth tile, turn left.
4. After moving a few steps again you will find a plant on your right hand side.
5. Colour the dress of the child playing closest to this plant.
6. Start moving again from the plant.
7. On the fourth tile, turn left again.
8. On the way, you will find the corner of the fourth tile is broken.
9. You will find a bat and a ball lying on the ground. Don't pick them up, just circle them.
10. Move ahead and turn right.
11. You will find a mango tree. A few mangoes can be seen on the tree. Colour 11 mangoes on the tree.
12. Also draw some grass near the mango tree and start moving again on the pathway.
13. When you go straight, you will find a house. 
14. Behind that house there is a bag. Open it and you will find something sweet in it! Can you tell what their mother has kept in the bag?