Template:Subst;square roots

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Error: Mind Map file SQUARE ROOTS .mm not found


squreroot

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 m2 has 2 squer roots, m;m and m example 9=3^2 or (-3)^2.thus both 3 and -3 or squer roots of 9
Square number.png

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

Teaching Outlines

Concept #

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

  • Materials/ Resources needed :- One white paper with 3 columns likeN , NxN &product.Pen or pencil to every student
  • Prerequisites/Instructions, if any
  • Multimedia resources
  • Website interactives/ links/ simulations
  • Process/ Developmental Questions
  • Evaluation
  • Question Corner

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