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3rd Class Mental Ability Shapes and Patterns Patterns

Patterns

Category : 3rd Class

 

Patterns

 

 

OBJECTIVE

 

  • Students will identity patterns in pictures/shapes, numbers and letters.
  • Students will develop an understanding extend given patterns.
  • Students will be aware of the patterns in their daily surroundings.
  • Students will be sort and group objects.
  • Patterns serve as the foundation of algebraic thinking.

 

 

Introduction

A pattern is a repeated design or recurring sequence. It is a set of pictures/ shapes, letters or numbers arranged according to a certain rule.

 

Type-I

Find the missing term or next term in (number or letter) series to continue the given series.

·         Identify the order of series (descending or ascending order). Observe the pattern using operations: addition, subtraction, skip counting and reverse counting.

·         Identify the order of alphabetical series either A to Z or Z to A.

·         Numbering of alphabets series either A to Z or Z to A.

·         Skipping letters/numbers.

 

Type II

Find the missing term in the pattern.

·         Identify the missing term in the pattern by observing the rule followed in rest of the given terms.

 

Type III

Find the missing part in the figure pattern,                            

·         Complete the figure pattern by drawing its incomplete part in the pattern

 

 

Type I. Picture Based Pattern

 

 

Example - 1

How many smiling faces will be there in Pattern 5?

 

Pattern 1           Pattern 2                  Patterns 3

 

(a) 10                            (b) 12        

(c) 15                            (d) 16

 

Ans. (c)

Explanation:

Smiling faces in pattern 1=3                                        

Smiling faces in pattern 2=6

Smiling faces in pattern 3=9

So, the Pattern is as follows

 

 

 

Example - 2

 

Joshua is weaving a pattern into a rug. What would most likely come next?

(a)  

(b) 

(c)

(d)

 

 

Ans. (a)

Explanation:

Each pattern repeats itself at every fourth step.

 

 

 

Example - 3

Which of the following options will complete the figure (X)?

(a)             (b)

(c)             (d)

Ans (d)

 

 

Type II: Number Based Pattern

 

 

Example - 4

Complete the number pattern.

3, 6, 11, 18, 27, ___?___, 51, ____?____.

(a) 34, 60                      (b) 38, 66      

(c) 42, 71                       (d) 46, 75

 

 

Ans. (b)

Explanation:

Rule followed in the series is:

Difference between consecutive terms are consecutive odd numbers.

 

 

Type III: Alphabet Based Pattern:

 

 

Example - 5

(a) IP                            (b) PU       

(c) MT                           (d) NS

 

 

Ans. (c)

Explanation:

The Pattern is as follows:

I Series

II Series

So, MT will complete the alphabet pattern.

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