Difference between revisions of "Surds"

From Karnataka Open Educational Resources
Jump to: navigation, search
(→‎Assessment activities for CCE)
m (removed Category:Algebra using HotCat)
 
(24 intermediate revisions by 6 users not shown)
Line 1: Line 1:
 +
<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#ffffff; vertical-align:top; text-align:center; padding:5px;">
 +
''[http://karnatakaeducation.org.in/KOER/index.php/ಕರಣಿಗಳು ಕನ್ನಡದಲ್ಲಿ ನೋಡಿ]''</div>
 +
 
<!-- This portal was created using subst:box portal skeleton  -->
 
<!-- This portal was created using subst:box portal skeleton  -->
 
<!--        BANNER ACROSS TOP OF PAGE        -->
 
<!--        BANNER ACROSS TOP OF PAGE        -->
 
{| id="mp-topbanner" style="width:100%;font-size:100%;border-collapse:separate;border-spacing:20px;"
 
{| id="mp-topbanner" style="width:100%;font-size:100%;border-collapse:separate;border-spacing:20px;"
 
|-
 
|-
−
|style="width:10%; border:none; border-radius:5px;box-shadow: 10px 10px 10px #888888; background:#f9f9ff; vertical-align:middle; text-align:center; "|
+
| 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:_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]
+
| 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]
−
|style=" width:10%; border:none; border-radius:5px;box-shadow: 10px 10px 10px #888888; background:#f9f9ff; vertical-align:middle; text-align:center; "|
+
| 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:_Pedagogy Teaching of Mathematics]
 
[http://www.karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_Pedagogy Teaching of Mathematics]
−
|style=" width:10%; border:none; border-radius:5px;box-shadow: 10px 10px 10px #888888; background:#f9f9ff; vertical-align:middle; text-align:center; "|
+
| 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/Maths:_Curriculum_and_Syllabus Curriculum and Syllabus]
 
[http://www.karnatakaeducation.org.in/KOER/en/index.php/Maths:_Curriculum_and_Syllabus Curriculum and Syllabus]
−
|style=" width:10%; border:none; border-radius:5px;box-shadow: 10px 10px 10px #888888; background:#f9f9ff; vertical-align:middle; text-align:center; "|
+
| 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:_Topics Topics in School Mathematics]
 
[http://www.karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_Topics Topics in School Mathematics]
−
|style=" width:10%; border:none; border-radius:5px;box-shadow: 10px 10px 10px #888888; background:#f9f9ff; vertical-align:middle; text-align:center; "|
+
| 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/Text_Books#Mathematics_-_Textbooks Textbooks]
 
[http://www.karnatakaeducation.org.in/KOER/en/index.php/Text_Books#Mathematics_-_Textbooks Textbooks]
−
|style=" width:10%; border:none; border-radius:5px;box-shadow: 10px 10px 10px #888888; background:#f9f9ff; vertical-align:middle; text-align:center; "|
+
| 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/Maths:_Question_Papers Question Bank]
 
[http://www.karnatakaeducation.org.in/KOER/en/index.php/Maths:_Question_Papers Question Bank]
 
|}
 
|}
Line 21: Line 24:
 
= Concept Map =
 
= Concept Map =
 
__FORCETOC__
 
__FORCETOC__
−
<mm>[[Surds in Manjesh.mm|Flash]]</mm>
+
 
 +
[[File:Surds in Manjesh.mm|Flash]]
  
 
= Textbook =
 
= Textbook =
 
Please click here for Karnataka and other text books.
 
Please click here for Karnataka and other text books.
−
 
+
#[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
+
#[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 SuFNcY1z8dr6srds in detail.
 
#[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.
Line 45: Line 50:
  
 
= Teaching Outlines =
 
= Teaching Outlines =
 +
*Definition, examaples
 +
*Order and radicand of a surd
 +
*Like Surds and Unlike Surds
 +
*Addition and Subtraction of Surds
 +
*Multiplication of Surds.<br>i.Multiplication of Surds having same Order<br>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'''==
 
==Concept 1: '''Definition of surds'''==
 +
Irrational root of rational number. Example:<math>\sqrt{2}, 7\sqrt{5},  \sqrt{x}</math>
 +
 
===Learning objectives===
 
===Learning objectives===
 
#know the meaning of surds
 
#know the meaning of surds
Line 57: Line 72:
  
 
===Activities===
 
===Activities===
−
#Activity1
+
Activity for Definition[[Surds_definition_of_surds_activity1| click]]
−
[[Surds_definition_of_surds_activity1|click here]]
 
  
−
==Concept-2: Like and Unlike surds==
+
==Concept-2: '''Like and Unlike surds'''==
 
===Learning objectives===
 
===Learning objectives===
 
#Know the meaning of surd
 
#Know the meaning of surd
Line 79: Line 93:
  
 
===Activities===
 
===Activities===
−
#Activity No:1 '''Like surds'''
+
Activity for like and unlike surds [[Surds_like_and_unlike_surds_activity_1|click here]]
−
[http://www.skwirk.com/p-c_s-12%20_u-86_t-164_c-526/adding-and-subtracting-surds/nsw/maths/number/surds#quiz_ click]
 
−
#Activity No:2 '''Unlike surds'''
 
−
[http://www.mathsteacher.com.au/year10/ch09_surds/05_multiplication/mult.htm_ click]
 
  
 +
== Concept-3: Addition of Surds ==
 +
#simplify the surds
 +
<math>3\sqrt{45}+2\sqrt{20}-\sqrt{5}</math>
 +
 +
<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.
 
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:
 
Examples:
 +
[[Surds_CCE_Activity]] click here
  
 
= Hints for difficult problems =
 
= Hints for difficult problems =
Line 105: Line 122:
  
 
= Math Fun =
 
= Math Fun =
 +
 +
[[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

Retrieved from "https://karnatakaeducation.org.in/KOER/en/index.php?title=Surds&oldid=32524"