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From Karnataka Open Educational Resources
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−===Learning objectives===
===Activity No # Different sectors of a circle===+*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>
−*Process:+# Show the geogebra file.+
+
+*Developmental Questions:+
*Question Corner+
=== Concept #10 Sector ===
+=== Objectives ===
−# Slice of a circle enclosed between any two radii is called a sector.
# Slice of a circle enclosed between any two radii is called a sector.
# Semicircle and quadrant are special types of sectors.
# Semicircle and quadrant are special types of sectors.
−===Notes for teachers===
+===Estimated Time===
−*15 minutes
−*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.
−<span></span><div id="ggbContainer4674c8acb4d6aa221e9a86e04ff2a055"></div><span></span>
+===Materials/ Resources needed===
−Laptop, geogebra file, projector and a pointer.
−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.
# Move the endpoints of the sector and help them understand the types of sector.
−# 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?
−*Evaluation
+*'''Evaluation'''
# Name the special types of sector?
# Name the special types of sector?
−# Give some examples of sector.
# Give some examples of sector.
