**Category : **1st Class

**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.

- Pattern of stripes is present on the body of tiger.
- Pattern of black and white colour stripes is present on the body of zebra.
- 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 ASC 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.

*play_arrow*Patterns*play_arrow*Concept of Patterns*play_arrow*Number Series

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