Patterns

LEARNING OBJECTIVES

This lesson will help you to:

• understand about patterns in numbers
• find or locate patterns in nature
• understand repeating patterns
• form patterns using numbers, alphabets, shapes and colours
• know about increasing and decreasing number of patterns

QUICK CONCEPT REVIEW

Have you seen a rangoli? Rangoli is made by following a particular pattern

A pattern is a repetitive design and can be seen around us.

How pattern is formed?

A pattern can be formed by using numbers, alphabets shapes or colours.

When objects or shapes are placed in an order, they form a pattern. A pattern follows a rule that allows us determine to what comes next in the sequence.

Amazing Facts

The migratory birds fly in V-Shape pattern so that they can reach the destination.

Real Life Examples:

The traffic light follows a pattern of 3 colours which repeats after few seconds to avoid traffic jam.

The pattern of white and black strip is present on the bod of zebra.

FINDING PATTERN

Where do we see Patterns in our everyday life?

We see patterns everywhere around us. For example: in the designs of a dress, in the design of an umbrella (on the basis of colours) and in the design of mehendi.

1. Pattern of stripes is present on the body of tiger.
2. Pattern of black and white colour stripes is present on the body of zebra.
3. Pattern of spots is present on the body of giraffe.

REPEATING PATTERN

A repeating pattern is a cyclic repetition of a particular element.

For example:

TYPES OF PATTERN

There are different types of patterns. Let us discuss them in detail.

1. NUMBER PATTERN

A list of numbers that follow certain sequence of pattern is known as number pattern

For example:

Hence, number of pencils is increasing by the difference of 2 in each step.  

Same is happening in the case of example of pattern of number of butterflies shown below.

2. LETTER PATTERN

Patterns can also be made with either same or different letters.

For example:

AA             BB           CC           DO          EE          

A                AB          ABC        ABCD     ABCDE

A                B             A             B             A            

A                5              A             S              A            

3. COLOUR PATTERN

An arrangement of different colours to form a pattern is called a colour pattern.

For example:

In Rangoli we use different colours to make different designs.

Historical Preview

Pattern is a particular arrangement made in different styles of numbers and various shapes and sizes.

Pattern of various designs are made on various monuments and temples in ancient time.

4. INCREASING AND DECREASING PATTERNS

Increasing Number Pattern: A growing pattern in which number keeps on increasing is called increasing number pattern.

For example:

In this pattern, the numbers are increasing by adding number '2' to each previous number.

Decreasing Number Pattern: A degrowing pattern in which number decreases is called decreasing number pattern.

For example:

  In this pattern, the numbers are decreasing by subtracting number '1' from each previous number.