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→Concept #10 SECTOR
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===Notes for teachers===
===Notes for teachers===
===Activity No # 1===
===Activity No # 1===
−*Estimated Time
+*Estimated Time : 15 minutes
−*Materials/ Resources needed
+*Materials/ Resources needed : Laptop, geogebra file, projector and a pointer.
*Prerequisites/Instructions, if any
*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
*Multimedia resources
−*Website interactives/ links/ / Geogebra Applets
+*Website interactives/ links/ / Geogebra Applets :
−*Process/ Developmental Questions
+Geogebra file on Sector of a circle.
+*Process:
+# Show the geogebra file.
+# 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
*Question Corner
+# Give some examples of sector.
= Hints for difficult problems =
= Hints for difficult problems =