Template:Subst;square roots

The Story of Science

Philosophy of Science

Teaching of Science

Curriculum and Syllabus

Topics in School Science

Textbooks

Question Bank

While creating a resource page, please click here for a resource creation checklist

Concept Map

Error: Mind Map file SQUARE ROOTS .mm not found

square root

Suppose N is a natural number such that N=$m^{2}$ . The number m is called square root of N we have $m^{2}$=mxm or $(m)^{2}$=-mx-m. Thus $m^{2}$ has 2 square roots, m and -m. Example 9=$3^{2}$ or $(-3)^{2}$.Thus both 3 and -3 are ${\sqrt {9}}$

Textbook

8 and 9 maths text books of Karnataka state
To add textbook links, please follow these instructions to: (Click to create the subpage)

Additional information

Useful websites

you can play with perfect square numbers from 1 to 1000 & play games with numbers please click here

To estimate the square root of a number click here

To play quiz on square root of a number click here

Reference Books

This text book contains activities for students to understand square and square root NCERT 8th std maths text book of chapter 6

Teaching Outlines

Concept #1

'perfect square-numbers'

Learning objectives

1. The students should understand that a perfect square number is the product obtained by multiplying same number with same sign twice.
   
2. Recognising perfect square-numbers in a given group of numbers
   
3. perfect square-number patterns
   
4. differentiating between perfect square-numbers & other numbers.
   

Notes for teachers

Patterns & games of perfect square-number may be given to students

Activity No 1

On a paper make 3 columns like N , NxN & product .give some numbers under column N and students can fill the other 2 columns

Click to Comment

• Materials/ Resources needed :- One white paper with 3 columns likeN , NxN &product.Pen or pencil to every student
• Prerequisites/Instructions, STUDENTS SHOULD PERFECTLY KNOW ABOUT MULTIPLICATION OF NUMBERS
• Multimedia resources INTERNET ,
• Website interactives/ links/ simulations Inthis web site you can play with perfect square number s from 1 to 1000 & play games with numbers.
• Process/ Developmental Questions
  1) the side of a square is 15 cm .what is area of square ?
  2) 121 balls are arranged in square pattern .How many balls in each row?
• Evaluation
  1) squqre of 15 =........
  2)144 =........... writte in the form n2
• Question Corner

Activity No 2

Click to Comment

• Materials/ Resources needed :-
• Prerequisites/Instructions,
• Multimedia resources
• Website interactives/ links/ simulations
• Process/ Developmental Questions
  
• Evaluation
  
• Question Corner

Activity No 3

Click to Comment

• Materials/ Resources needed :-
• Prerequisites/Instructions,
• Multimedia resources
• Website interactives/ links/ simulations
• Process/ Developmental Questions
  
• Evaluation
  
• Question Corner

Concept #2

SQUARE ROOT OF A NUMBER

Learning objectives

1. Finding square root of a perfect square number by prime factorisation
2. Finding square root of a number by division method
3. Finding square root of a decimal number

Activity No 1

Click to Comment

• Materials/ Resources needed :-
• Prerequisites/Instructions,
• Multimedia resources
• Website interactives/ links/ simulations
• Process/ Developmental Questions
  
• Evaluation
  
• Question Corner

Activity No 2

Click to Comment

• Materials/ Resources needed :-
• Prerequisites/Instructions,
• Multimedia resources
• Website interactives/ links/ simulations
• Process/ Developmental Questions
  
• Evaluation
  
• Question Corner