Concept of Pattern

Concept of pattern will help us to learn the basic number patterns and table patterns.

Animals such as all cows, all lions, all dogs and all other animals have dissimilar features. All mangoes have similar features and shapes. Leaves of the same tree have similar pattern of shape. The doors and windows of a house have similar patterns. We may search for similar patterns in mathematics also.

The study of patterns helps students to observe relationships and find continuous connections, to deduce generalizations and predictions.

1. Observe the pattern and tick the one that should come next.

Observe the Pattern


2. Complete the patterns by coloring the shapes.

 Complete the Patterns by Coloring the Shapes


3. Observe the pattern of numbers and write the ones that should come next.

(i)

2

4

6

8

10

__

__

(ii)

1

2

1

2

1

__

__


4. Observe the pattern and tick the shape that should come next.

Same shapes can be coloured differently to create patterns.

This row of squares has been coloured following the colour code RYGB.

R for Red

Y for Yellow

G for Green and

B for Blue


Row of Squares Pattern


More rows can be added following a similar code. Colour the grid following the colour code given below.

Colour the Grid


You may have seen such patterns in patchwork quilts.



Colour Pattern in Patch Work Quilt
Chessboard Pattern

Colour Pattern in Patch Work Quilt

Chessboard Pattern

Observe these patterns in your surroundings.

Pattern of Straight Lines and Curved Lines on a Fence

Pattern of straight lines and curved lines on a fence

Pattern of Bricks on a Wall

Pattern of Bricks on a Wall


In everyday life we observe dress pattern, carpet pattern, wall-paper pattern, sari-design pattern as well as number pattern in arithmetic.

Examples of patterns are given below:

2     4      6     8     10     12    …………….;                    

5    10    15    20    25    30    …………….


The learner has to recognize a pattern and expand it. He must analyze it and then create new patterns to study the subject matter. The teacher should develop in the students the concept of pattern.

(i) To get better idea on the concept of pattern let us look at the following pictures:

Using the numbers the sequence is:

The rule to go from one number to the next number is ‘add 2’


(ii) In the pattern 1, 3, 5, 7, ……. the number of footballs go on increasing and the number becomes larger each time.

Sometimes the numbers i8n a pattern go on decreasing. Suppose there are 16 footballs in the basket. A person gives two footballs to each group of players for the football match. The number of footballs in the basket goes on decreasing by each group.

The pattern is:

The missing numbers are 8, 6 and 4. The rule of the pattern is to take away 2 each time.


(iii) The numbers becomes larger and larger very rapidly.

The missing number is 16. The rule to go from one term to the next is multiply by 2.

Here are some examples of designs having the same pattern:


Number Patterns / Patterns in Numbers:

Observe the pattern of numbers and write the one that should come next.

(a) 1, 2, 3, 4, 5, _____

(b) 9, 8, 7, 6, 5, _____

(c) 4, 8, 12, 16, _____ 

(d) 11, 22, 33, 44, 55, _____


A pattern may also be created by repeated numbers. To understand the order, we have to find out the order in which the numbers have been arranged.

0

1

2

0

1

2

0

1

2

0

1

2

Here, we can see three digits 0, 1, and 2 being repeated in the same order.

1

1

2

2

1

1

2

2

1

1

2

2

Here, we see the digit 1 being written after 1 and the 2 being written after 2. This set of four is being repeated.

1

2

3

3

2

1

1

2

3

3

2

1

Here, we see the digits increasing from 1 to 3 and then decreasing from 3 to 1. This set of six is being repeated.


Different Types of Numbers of Patterns:

1 + 2 + 3 + 4 + 5 + ……. + 10 = 55

Sum of the numbers from 1 to 10 is 55

Hence, the sum of the numbers from 11 to 20 will be 10 × 10 = 100 more than 55

11 + 12 + 12 + ……. + 20 = 155


Look at the following pattern that grows when you add triangles.

Patterns Math

The pattern can be represented in numbers as 1, 2, 3.


Sequences and Patterns

A pattern like given above will form a sequence 1, 4, 9, 16, 25, …..


Table Patterns:

(i) 2, 4, 6, 8, 10, …….

In table 2, we see every forward number is 2 more than its previous one.


(ii) 2, 8, 14, 20, 26, …….

Every forward number is 6 more than the previous one.

(iii) 1 + 2 + 3 + 4 + 5 = 15

Sum of first 5 consecutive numbers = 15

2 + 3 + 4 + 5 + 6 = 20 

Sum of 2 to 6 consecutive numbers = 15 + 5 = 20

3 + 4 + 5 + 6 + 7 = 25 

Sum of 3 to 6 consecutive numbers = 15 + 2 × 5 = 25

11 + 12 + 13 + 14 + 15 = 65    

Sum of 11 to 15 consecutive numbers = 15 + (11 - 1) × 5

             = 15 + (10 × 5)

             = 15 + 50

             = 65


Questions and Answers on Concept of Pattern:

I. Observe the rule and write the next number in the series.

(i) 5, 10, 15, 20, ........, ........, ........, ........, ........, ........

(ii) 1, 2, 3, ........, ........, ........, ........, ........, ........, ........

(iii) 10, 20, ........, ........, ........, ........, ........, ........, ........, ........

(iv) 10, 9, 8, ........, ........, ........, ........, ........, ........, ........


Answer:

I. (i) 25, 30, 35, 40, 45, 50

(ii) 4, 5, 6, 7, 8, 9, 10

(iii) 30, 40, 50, 60, 70, 80, 90, 100

(iv) 7, 6, 5, 4, 3, 2, 1


A number sequence follows a pattern. We can make number patterns by applying a rule.


II. Make a number sequence by applying the given rule.

Make a Number Sequence

Answer:

II. (i) 4, 6, 8, 10

(ii) 90, 80, 70, 60

(iii) 8, 12, 16, 20

(iv) 6, 9, 12, 15


III. Complete the given pattern. One is done for you.

Complete the given Pattern


Answer:

III.

Complete the given Pattern Answer

















IV. Draw a zebra crossing pattern in the following space.






Answer:

IV.

Draw a Zebra Crossing Pattern

V. Continue the pattern.

Continue the Pattern

Answer:

V.

Continue the Pattern Answer

VI. Complete the pattern and color.

Complete the Pattern and Color

Answer:

VI.

Complete the Pattern and Color Answer

VII. Find the rule used in this number pattern.

(i) 55, 45, 35, 25, ... _______________

(ii) 36, 39, 42, ... _______________

(iii) 50, 45, 40, 35, ... _______________

(iv) 10, 20, 30, 40, ... _______________


Answer:

VII. 

(i) -10

(ii) +3

(iii) -5

(iv) +10


VIII. Tick the shape that comes next.

Shape that Comes Next

Answer:

VIII.

Shape that Comes Next Answer















IX. Look at the picture and write the answers.

Chessboard Pattern

(i) What shape is used in this pattern?

(ii) How many times is the shape used?

(iii) How many white square boxes are there?

(iv) How many black square boxes are there?

(v) Do you see any number pattern?


Answer:

IX.

(i) Square

(ii) 64

(iii) 32

(iv) 32


X. Complete and color the pattern.

Complete and Color the Pattern


Answer:

X.

Complete and Color the Pattern


IX. Draw the next pattern in the given picture.

Next Pattern

Answer:

IX.

Next Pattern Answer






















X. Observe the rule and write what comes next.

(i) 110, 120, 130, _____, _____, _____, _____, _____.

(ii) 2, 4, 6, _____, _____, _____, _____, _____.

(iii) 90, 89, 88, _____, _____, _____, _____, _____.

(iv) 16, 20, 24, _____, _____, _____, _____, _____.


Answer:

X. (i) 140, 150, 160, 170, 180.

(ii) 8, 10, 12, 14, 16.

(iii) 87, 86, 85, 84, 83.

(iv) 28, 32, 36, 40, 44.


XI. Look for a pattern and fill in the missing numbers.

Look for a Pattern

Answer:

XI. (i) 11, 13

(ii) 18, 21

(iii) 50, 40

(iv) 500, 600



XII. Observe the pattern of numbers and fill in the blanks to complete the series.

Pattern of Numbers

Answer:

XII. (i) 1, 0, 1, 0

(ii) 8, 8, 6, 6

(iii) 2, 2, 3, 3


XII. Observe the number pattern and write what should come next.

(i) 1, 22, 333, 4444, 55555, ______

(ii) 1, 2, 2, 3, 4, 4, 5, 6, 6, ______

(iii) 1, 1, 2, 3, 3, 4, 5, 5, 6, ______

(iv) 3, 13, 23, 33, 43, ______


Answer:

XII. (i) 666666

(ii) 7

(iii) 7

(iv) 53





2nd Grade Math Practice

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