Creating patterns of regular and irregular shapes by stamping.

__Patterns in shapes__

Creating patterns of regular and irregular shapes by stamping.

__Example :__ block patterns created using handprints and foot prints are shown below.

__Activity 1__

Create patterns by impressing the following on a paper.

(i) Using dry leaves /fallen leaves.

(ii) Fingers, hands, toes, feet.

(iii) Using bangles.

__Activity 2__

Create patterns on your own by impressing the following on a chart paper and decorate your class room.

i. seeds

ii. buttons

iii. bottle lids

My own patterns

__Pattern in geometrical shapes__

There are two types of patterns.

They are

* Growing patterns.

* Repeated patterns.

__a. Growing Patterns__

If some patterns and designs increase or grow with straight lines and geometrical forms, they are called growing patterns.

__Example :__

__Try this__

Create some growing patterns using circle and square.

__Practice__

a. Continue the growing patterns.

b. Continue the growing pattern.

__b. Repeated Patterns__

If some patterns and designs repeat with straight lines and geometrical shapes, they are called repeated patterns.

__Example :__

__Practice__

Continue the repeating patterns upto 3 steps in the space provided.

__Activity 3__

Complete the buntings by following the pattern.

Do yourself: Draw some repeated patterns of your own.

Patterns are created by combining colours and shapes in different ways.

__Activity 4__

1. Match the following and complete the pattern.

2. Match the following.

__Symmetries in shapes and patterns.__

Do your self

1. Take a piece of paper.

2. Spill few drops of ink on the paper.

3. Now fold the paper and press it.

4. You will get a symmetric figure.

__Symmetry__

Definition

Symmetry means that one shape becomes exactly like another when you move it in the some way: turn, flip or slide.

Let us do

1. Take a sheet of paper and fold it.

2. Draw any shape at the folded edge of the sheet.

3. Cut the shape

4. Unfold it

__Example :__

__line of symmetry__

Note that one half of the shape is exactly like the other half. The line which divides the figure into two exact halves is called *the line of symmetry*.

The following letters are non symmetric and does not have line of symmetry.

F G J L N P Q R S Z

__Try this__

Make the paper cut outs of the shapes shown below with the help of your elders and keep them in in front of a mirror and observe the image formed in the mirror. You could see the other half of the image.

__Symmetrical shapes__

__Definition__

If a shape can be folded or divided into half so that the two halves match exactly then such a shape is called a symmetric shapes.

__Example : 1__

__Example : 2__

Line of Symmetry, Folding Line, Mirror Line, Mirror Line

Project:

Collect some symmetrical images from newspapers and magazines and Paste them to make an album.

__Activity 5__

Complete the symmetrical image

Teacher’s note : Teacher can guide the children to collect the symmetrical images in day−today life.

__Activity 6__

a. Draw the lines of symmetry for the following figures.

b. Circle the non−symmetrical shapes.

__Activity 7__

Draw the other half from the line of symmetry to make it symmetrical.

__Activity 8__

Line symmetry is also found in some letters of the alphabet. Complete, Write the letters with line symmetry.

__Answer:__ A B C D E H I K M O T U V W X Y Z

Tags : Patterns | Term 1 Chapter 3 | 3rd Maths , 3rd Maths : Term 1 Unit 3 : Patterns

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3rd Maths : Term 1 Unit 3 : Patterns : Patterns in shapes | Patterns | Term 1 Chapter 3 | 3rd Maths

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