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→Concept #10 SECTOR
===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 =