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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 M we have $m^{2}$=mxm or (-m)x(-m)=$(-m)^{2}$ thus $m^{2}$ has 2 square roots, m;m and m example 9=$3^{2}$ or $(-3)^{2}$.thus both 3 and -3 or ${\sqrt {9}}$

This shows pictorial representation of squares and square roots

Textbook

8 and 9 maths text books of Karnataka state
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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

In 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. Finding perfect square-numbers
2. Recognising perfect square-numbers in a given group of numbers
3. perfect square-number patterns
4. differentiating between perfect square-numbers & other numbers.
5. Finding square root of a perfect square number by prime facterisation and division method
6. Finding square root of a decimal number

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

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• 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
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