Template:Subst;square roots

From Karnataka Open Educational Resources

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= . The number M is called square root of M we have =mxm or (-m)x(-m)= thus has 2 square roots, m;m and m example 9= or .thus both 3 and -3 or

Square number.png


This shows pictorial representation of squares and square roots

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. 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.

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, 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

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

Activity No 3

  • 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 facterisation
2. Finding square root of a number by division method
3. Finding square root of a decimal number

Notes for teachers

Activity No 1

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

Activity No 2

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

Project Ideas

Fun corner