Difference between revisions of "Sector of a circle"

Latest revision as of 05:54, 7 November 2019

Slice of a circle enclosed between any two radii is called a sector.Semicircle and quadrant are special types of sectors.

Objectives

To understand area enclosed by two radii is sector.

Estimated Time

15 minutes

Prerequisites/Instructions, prior preparations, if any

The students should know a circle, centre, radius,circumference and a sector.
They should know that circle is a planar figure.

Materials/ Resources needed

Non digital: Laptop, geogebra file, projector and a pointer.

Geogebra file: Arcs and Sector of a circle

Download this geogebra file from this link.

Process (How to do the activity)

Move the endpoints of the sector and help them understand the types of sector.

Name all the points on the circumference.
Name the endpoints of the sector.
Name the major and minor sectors.
What can you say about the two straight lines of the sector?

Evaluation

Name the special types of sector?
Give some examples of sector.

@@ Line 1: / Line 1: @@
+Slice of a circle enclosed between any two radii is called a sector.Semicircle and quadrant are special types of sectors.
-<!--        BANNER ACROSS TOP OF PAGE        -->
+=== Objectives ===
-{| id="mp-topbanner" style="width:100%;font-size:100%;border-collapse:separate;border-spacing:20px;"
+* To understand area enclosed by two radii is sector.
-|-
+===Estimated Time===
-| style="width:10%; border:none; border-radius:5px;box-shadow: 10px 10px 10px #888888; background:#f9f9ff; vertical-align:middle; text-align:center; " |
+*15 minutes
-[http://karnatakaeducation.org.in/KOER/en/index.php/Mathematics:_History The Story of Mathematics]
+===Prerequisites/Instructions, prior preparations, if any===
-| 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]
+* The students should know a circle, centre, radius,circumference and a sector.
-| style=" width:10%; border:none; border-radius:5px;box-shadow: 10px 10px 10px #888888; background:#f9f9ff; vertical-align:middle; text-align:center; " |
+* They should know that circle is a planar figure.
-[http://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; " |
-[http://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; " |
-[http://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; " |
-[http://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; " |
-[http://karnatakaeducation.org.in/KOER/en/index.php/Maths:_Question_Papers Question Bank]
-|}
-  __FORCETOC__
+===Materials/ Resources needed===
+Non digital: Laptop, geogebra file, projector and a pointer.
-=== Concept #10 Sector ===
+Geogebra file: [https://ggbm.at/fqssprue Arcs and Sector of a circle]
-===Learning objectives===
-# Slice of a circle enclosed between any two radii is called a sector.
-# Semicircle and quadrant are special types of sectors.
-===Notes for teachers===
-===Activity No # Different sectors of a circle===
-*Estimated Time : 15 minutes
-*Materials/ Resources needed : Laptop, geogebra file, projector and a pointer.
-*Prerequisites/Instructions, if any
-# The students should know a circle, centre, radius,circumference and a sector.
-# They should know that circle is a planar figure.
-*Multimedia resources
-*Website interactives/ links/ / Geogebra Applets :
-<span> </span>
-<span></span><div id="ggbContainer4674c8acb4d6aa221e9a86e04ff2a055"></div><span></span>
+{{Geogebra|fqssprue}}
-*Process:
-# Show the geogebra file.
+===Process (How to do the activity)===
+<span></span><span></span>
 # Move the endpoints of the sector and help them understand the types of sector.
-*Developmental Questions:
 # Name all the points on the circumference.
 # Name the endpoints of the sector.
 # Name the major and minor sectors.
 # What can you say about the two straight lines of the sector?
-*Evaluation
+*'''Evaluation'''
 # Name the special types of sector?
-*Question Corner
 # Give some examples of sector.
+[[Category:Circles]]