Difference between revisions of "Surds"

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[http://www.karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_History The Story of Mathematics]
 
[http://www.karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_History The Story of Mathematics]
|style=" width:10%; border:none; border-radius:5px;box-shadow: 10px 10px 10px #888888; background:#f9f9ff; vertical-align:middle; text-align:center; "|[http://www.karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_Philosophy Philosophy of Mathematics]
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| style=" width:10%; border:none; border-radius:5px;box-shadow: 10px 10px 10px #888888; background:#f9f9ff; vertical-align:middle; text-align:center; " |[http://www.karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_Philosophy Philosophy of Mathematics]
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[http://www.karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_Pedagogy Teaching of Mathematics]
 
[http://www.karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_Pedagogy Teaching of Mathematics]
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[http://www.karnatakaeducation.org.in/KOER/en/index.php/Maths:_Curriculum_and_Syllabus Curriculum and Syllabus]
 
[http://www.karnatakaeducation.org.in/KOER/en/index.php/Maths:_Curriculum_and_Syllabus Curriculum and Syllabus]
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[http://www.karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_Topics Topics in School Mathematics]
 
[http://www.karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_Topics Topics in School Mathematics]
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[http://www.karnatakaeducation.org.in/KOER/en/index.php/Text_Books#Mathematics_-_Textbooks Textbooks]
 
[http://www.karnatakaeducation.org.in/KOER/en/index.php/Text_Books#Mathematics_-_Textbooks Textbooks]
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[http://www.karnatakaeducation.org.in/KOER/en/index.php/Maths:_Question_Papers Question Bank]
 
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= Concept Map =
 
= Concept Map =
 
__FORCETOC__
 
__FORCETOC__
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[[File:Surds in Manjesh.mm|Flash]]
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= Textbook =
 
= Textbook =
 
Please click here for Karnataka and other text books.
 
Please click here for Karnataka and other text books.
 
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#[http://ktbs.kar.nic.in/New/Textbooks/class-x/english/maths/class-x-english-maths-chapter07.pdf Karnataka text book for Class 10, Chapter 07 - Surds]
  
 
=Additional Information=
 
=Additional Information=
 +
#9th_and_10th_ NCERT, ICSE and CBSE Text books, relavent websites and other books
 
==Useful websites==
 
==Useful websites==
#[http://m.everythingmaths.co.za/grade-11/01-exponents-and-surds/01-exponents-and-surds-02.cnxmlplus Surds] starts with basic concepts,(to view the next page, please click on previous/up/next options in the bottom of the page
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#[http://m.everythingmaths.co.za/grade-11/01-exponents-and-surds/01-exponents-and-surds-02.cnxmlplus Surds] starts with basic concepts,(to view the next page, please click on previous/up/next options in the bottom of the page
#[http://en.wikipedia.org/wiki/Nth_root Please refer Wikipedia page for Surds]. This page discusses Surds in detail.
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#[http://en.wikipedia.org/wiki/Nth_root Please refer Wikipedia page for Surds]. This page discusses SuFNcY1z8dr6srds in detail.
 
#[http://www.mathcentre.ac.uk/resources/uploaded/mc-ty-surds-2009-1.pdf surds and other roots]This page discusses surds and roots in detail.
 
#[http://www.mathcentre.ac.uk/resources/uploaded/mc-ty-surds-2009-1.pdf surds and other roots]This page discusses surds and roots in detail.
#Video on Surds from Youtube
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#Video on Surds from Youtube :simplifying surds,rationalising surds,dividing and multiplying surds
 
{{#widget:YouTube|id=iTt3TVjsjuY}}
 
{{#widget:YouTube|id=iTt3TVjsjuY}}
 
{{#widget:YouTube|id=w3PGLLT5nr4}}
 
{{#widget:YouTube|id=w3PGLLT5nr4}}
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{{#widget:YouTube|id=FNcY1z8dr6s}}
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{{#widget:YouTube|id=D3SZE6zkQlM}}
  
==Reference Books==
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==Reference Questions==
 +
#what is the meaning of surds?
 +
#Difference between like and unlike surds.
 +
#Meaning of Pure and mixed surds.
 +
#Simplification of  rationalising the denominator.
  
 
= Teaching Outlines =
 
= Teaching Outlines =
 +
*Definition, examaples
 +
*Order and radicand of a surd
 +
*Like Surds and Unlike Surds
 +
*Addition and Subtraction of Surds
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*Multiplication of Surds.<br>i.Multiplication of Surds having same Order<br>ii. Multiplication of Surds having different Order
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*Rationalising Factor of a Surd
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*Simplifying a surd by Rationalizing denominator of a surd
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 +
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==Concept 1: '''Definition of surds'''==
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Irrational root of rational number. Example:<math>\sqrt{2}, 7\sqrt{5},  \sqrt{x}</math>
  
==Concept #==
 
 
===Learning objectives===
 
===Learning objectives===
 +
#know the meaning of surds
 +
#recognising radicand and order of surds
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===Notes for teachers===
 
===Notes for teachers===
''These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.''
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If you can't simplify a number to remove a square root (or cube root etc) then it is a surd.
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If it is a root and irrational, it is a surd.
 +
But not all roots are surds.
  
 
===Activities===
 
===Activities===
#Activity No #1 '''Concept Name - Activity No.'''
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Activity for Definition[[Surds_definition_of_surds_activity1| click]]
#Activity No #2 '''Concept Name - Activity No.'''
 
 
 
  
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==Concept-2: '''Like and Unlike surds'''==
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===Learning objectives===
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#Know the meaning of surd
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#recognising the meaning of order and radicand
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#Examples of like and unlike surds
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#To change surd to simplest form
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#Addition and Multiplication og surds
  
==Concept #==
 
===Learning objectives===
 
 
===Notes for teachers===
 
===Notes for teachers===
''These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.''
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1.Like surds: A group of surds having same order and same radicand in their simplest form.
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Example: <math>3\sqrt{5}, 7\sqrt{5}, x\sqrt{5}</math><br>
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2.Unlike surds: Groups of surds having  different orders or different  radicandsor both in their simplest form.
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Example: <math>\sqrt{a}, 3\sqrt{2}, x\sqrt{5}</math><br>
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3.Addition and sustraction  of surds.
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Example: <math>2\sqrt{5}+3\sqrt{5}-\sqrt{5}</math><br>
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4.Multiplication of surds.
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Example: <math>7\sqrt{3}  X  2\sqrt{5}</math><br>
  
 
===Activities===
 
===Activities===
#Activity No #1 '''Concept Name - Activity No.'''
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Activity for like and unlike surds [[Surds_like_and_unlike_surds_activity_1|click here]]
#Activity No #2 '''Concept Name - Activity No.'''
 
  
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== Concept-3: Addition of Surds ==
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#simplify the surds
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<math>3\sqrt{45}+2\sqrt{20}-\sqrt{5}</math>
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<math>=3\sqrt{3X3X5}+2\sqrt{2X2X5}-\sqrt{5}</math>
 
=Assessment activities for CCE=
 
=Assessment activities for CCE=
 +
Solving problems with  same order and same radicand, same order and different radicand, different order and different radicand also different order and same order.
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Examples:
 +
[[Surds_CCE_Activity]] click here
  
 
= Hints for difficult problems =
 
= Hints for difficult problems =
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= Math Fun =
 
= Math Fun =
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[[Category:Surds]]

Latest revision as of 07:41, 7 November 2019

ಕನ್ನಡದಲ್ಲಿ ನೋಡಿ

The Story of Mathematics

Philosophy of Mathematics

Teaching of Mathematics

Curriculum and Syllabus

Topics in School Mathematics

Textbooks

Question Bank

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

Concept Map

[maximize]

Textbook

Please click here for Karnataka and other text books.

  1. Karnataka text book for Class 10, Chapter 07 - Surds

Additional Information

  1. 9th_and_10th_ NCERT, ICSE and CBSE Text books, relavent websites and other books

Useful websites

  1. Surds starts with basic concepts,(to view the next page, please click on previous/up/next options in the bottom of the page
  2. Please refer Wikipedia page for Surds. This page discusses SuFNcY1z8dr6srds in detail.
  3. surds and other rootsThis page discusses surds and roots in detail.
  4. Video on Surds from Youtube :simplifying surds,rationalising surds,dividing and multiplying surds

Reference Questions

  1. what is the meaning of surds?
  2. Difference between like and unlike surds.
  3. Meaning of Pure and mixed surds.
  4. Simplification of rationalising the denominator.

Teaching Outlines

  • Definition, examaples
  • Order and radicand of a surd
  • Like Surds and Unlike Surds
  • Addition and Subtraction of Surds
  • Multiplication of Surds.
    i.Multiplication of Surds having same Order
    ii. Multiplication of Surds having different Order
  • Rationalising Factor of a Surd
  • Simplifying a surd by Rationalizing denominator of a surd


Concept 1: Definition of surds

Irrational root of rational number. Example:'"`UNIQ--postMath-00000001-QINU`"'

Learning objectives

  1. know the meaning of surds
  2. recognising radicand and order of surds

Notes for teachers

If you can't simplify a number to remove a square root (or cube root etc) then it is a surd. If it is a root and irrational, it is a surd. But not all roots are surds.

Activities

Activity for Definition click

Concept-2: Like and Unlike surds

Learning objectives

  1. Know the meaning of surd
  2. recognising the meaning of order and radicand
  3. Examples of like and unlike surds
  4. To change surd to simplest form
  5. Addition and Multiplication og surds

Notes for teachers

1.Like surds: A group of surds having same order and same radicand in their simplest form. Example: '"`UNIQ--postMath-00000002-QINU`"'
2.Unlike surds: Groups of surds having different orders or different radicandsor both in their simplest form. Example: '"`UNIQ--postMath-00000003-QINU`"'
3.Addition and sustraction of surds. Example: '"`UNIQ--postMath-00000004-QINU`"'
4.Multiplication of surds. Example: '"`UNIQ--postMath-00000005-QINU`"'

Activities

Activity for like and unlike surds click here

Concept-3: Addition of Surds

  1. simplify the surds

'"`UNIQ--postMath-00000006-QINU`"'

'"`UNIQ--postMath-00000007-QINU`"'

Assessment activities for CCE

Solving problems with same order and same radicand, same order and different radicand, different order and different radicand also different order and same order. Examples: Surds_CCE_Activity click here

Hints for difficult problems

Project Ideas

Hints for difficult problems

Please clickhere\here

Project Ideas

KOER_Mathematics_2014-15#Resources_and_handouts

Math Fun

Teachers contributions for this page

  1. Tharanath Achar Sir, Graduate Assistant. Govt. P U College, Belthangady

Math Fun