NCERT - 8 - Maths :: Squares and Square Roots
Go To: NCERT-Mathematics-Grade 8
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[Author - Kripa S]
Objective: Explain properties of squares and square roots
Subtopics to be covered:
- Squares from 1 - 20, square roots for numbers till 100
- Properties of squares- digits ending with 1,4,5,6,9,0
- Non perfect square numbers between two squares
- Square root by factorization method
- Square root by division method
Learning Outcome:
- Students can give the squares of any number
- Students can find the square root of any number by one of the two methods
- They know the properties to identify squares for a number
[Author - Kripa S]
http://epathshala.nic.in/wp-content/doc/book/flipbook/ClassVIIIFlipbook/0853-Ganit/Chapter_6/index.html (NCERT Hindi Medium)
http://epathshala.nic.in/wp-content/doc/book/flipbook/ClassVIIIFlipbook/0852-Mathematics/6/index.html (NCERT English Medium)
https://drive.google.com/open?id=0BzNF2YyqQxJ-MDd6SHRJbFZrQjg (JEPC Board) (Hindi Medium)
[Contributor - Rishi Mazumdar]
(Source - Khan Academy)
https://hi.khanacademy.org/math/in-eighth-grade-math/squares-square-roots (Hindi - Squares and Square Roots)
[Author - Kripa S]
https://i0.wp.com/www.math-help-online.com/wp-content/uploads/2016/04/square-roots.jpg (square roots)
http://study.com/cimages/multimages/16/squares_and_roots.png (squares and square roots from 1 - 12)
http://3.bp.blogspot.com/-D7KFeG8JpT8/U3YwjRwcgNI/AAAAAAAABhA/11jyAsZQK60/s1600/How+to+find+Prime+Factors+in+Java.gif (prime factorization method)
[Author - Kripa S]
1. Make a chart of squares for numbers 1 to 20.
2. Make a chart of numbers whose square roots are from 1 to 20
3. Make teams of two students each, where one student will ask square of a number, and other student will ask square root of a number.
[Author - Reshav Dey]
https://drive.google.com/open?id=0BzNF2YyqQxJ-Q1MxaUNxY0V6bnM (answerkey 1)
https://drive.google.com/open?id=0BzNF2YyqQxJ-elZTVFhqV0VrWm8 (answerkey 2)
| Term' | 'Transliterated Term' | 'Translated Term' |
| square | स्क्वायर | वर्ग |
| square root | स्क्वायर रूट | वर्गमूल |
| factorization | फैक्टरआइज़ेसन | गुणनखंडन |
| quotient | कोसंट | भागफल |
| unit digit | यूनिट डिजिट | इकाई अंक |
| perfect square | परफेक्ट स्क्वायर | पूर्ण वर्ग |
| natural number | नेचुरल नंबर | प्राकृत संख्या |
| consecutive integers | कोंसएकुटिव इनटीजर्स | क्रमागत पूर्णांक |
| odd number | ओड नंबर | विषम संख्या |
| even number | इवन नंबर | सम संख्या |
| decimal | डेसीमल | दशमलव |
| remainder | रिमैंदर | सेशफल |
| sequence | सीक्वेंस | अनुक्रम |
[Author - Reshav Dey]
https://drive.google.com/open?id=0BzNF2YyqQxJ-bHIteFV4ZzlYQkU (worksheet 1)
https://drive.google.com/open?id=0BzNF2YyqQxJ-UUJHOHQ5SDdYaE0 (worksheet 2)
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