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Sector of a circle (view source)

Revision as of 11:24, 7 November 2019

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Slice of a circle enclosed between any two radii is called a sector.Semicircle and quadrant are special types of sectors.
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=== Objectives ===
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* To understand area enclosed by two radii is sector.
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===Estimated Time===
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*15 minutes
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[http://karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_History The Story of Mathematics]
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===Prerequisites/Instructions, prior preparations, if any===
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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://karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_Philosophy Philosophy of Mathematics]
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* The students should know a circle, centre, radius,circumference and a sector.
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* They should know that circle is a planar figure.
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[http://karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_Pedagogy Teaching of Mathematics]
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[http://karnatakaeducation.org.in/KOER/en/index.php/Maths:_Curriculum_and_Syllabus Curriculum and Syllabus]
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[http://karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_Topics Topics in School Mathematics]
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[http://karnatakaeducation.org.in/KOER/en/index.php/Text_Books#Mathematics_-_Textbooks Textbooks]
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[http://karnatakaeducation.org.in/KOER/en/index.php/Maths:_Question_Papers Question Bank]
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  __FORCETOC__
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===Materials/ Resources needed===
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Non digital: Laptop, geogebra file, projector and a pointer.
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=== Concept #10 Sector ===
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Geogebra file: [https://ggbm.at/fqssprue Arcs and Sector of a circle]
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===Learning objectives===
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# Slice of a circle enclosed between any two radii is called a sector.
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# Semicircle and quadrant are special types of sectors.
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===Notes for teachers===
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===Activity No # Different sectors of a circle===
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*Estimated Time : 15 minutes
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*Materials/ Resources needed : Laptop, geogebra file, projector and a pointer.
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*Prerequisites/Instructions, if any
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# The students should know a circle, centre, radius,circumference and a sector.
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# They should know that circle is a planar figure.
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*Multimedia resources
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*Website interactives/ links/ / Geogebra Applets :
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<span> </span>
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<span></span><div id="ggbContainer4674c8acb4d6aa221e9a86e04ff2a055"></div><span></span>
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{{Geogebra|fqssprue}}
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*Process:
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# Show the geogebra file.
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===Process (How to do the activity)===
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<span></span><span></span>
 
# Move the endpoints of the sector and help them understand the types of sector.
 
# Move the endpoints of the sector and help them understand the types of sector.
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*Developmental Questions:
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# Name all the points on the circumference.
 
# Name all the points on the circumference.
 
# Name the endpoints of the sector.  
 
# Name the endpoints of the sector.  
 
# Name the major and minor sectors.
 
# Name the major and minor sectors.
 
# What can you say about the two straight lines of the sector?
 
# What can you say about the two straight lines of the sector?
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*Evaluation
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*'''Evaluation'''
 
# Name the special types of sector?
 
# Name the special types of sector?
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*Question Corner
   
# Give some examples of sector.
 
# Give some examples of sector.
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[[Category:Circles]]
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